chore(git): stop tracking runtime db state files

Co-authored-by: Cursor <cursoragent@cursor.com>
feat(ui): refresh preset data flow and bump driver pointer
2026-05-06 20:35:50 +12:00 · 2026-05-06 20:28:56 +12:00 · 2026-05-04 22:49:06 +12:00 · 2026-05-03 22:15:30 +12:00 · 2026-05-03 21:27:32 +12:00 · 2026-05-03 21:27:31 +12:00
123 changed files with 4498 additions and 2068 deletions
--- a/.cursor/rules/led-driver.mdc
+++ b/.cursor/rules/led-driver.mdc
@@ -0,0 +1,45 @@
+---
+description: led-driver — MicroPython ESP32: mpremote, imports, layout, I/O, no pycache in src
+globs: led-driver/**
+alwaysApply: false
+---
+
+# led-driver (MicroPython / ESP32)
+
+## Device and tests
+
+1. Validate **MicroPython behaviour** under **`led-driver/`** with **`mpremote connect <PORT> …`** on the chip. Host **`python3`** does **not** prove the firmware build.
+
+2. **Execution target is fixed:** treat **`led-driver/`** code as firmware that runs **only on MicroPython ESP32 devices**. Do **not** run `led-driver/src/main.py` (or other firmware modules) with host CPython as a normal execution path.
+
+3. **Flow:** `mpremote connect <PORT> cp <local> :<on-flash>` then `run <script>.py`. Inline commands only — no **`.sh`** wrappers unless the user asks. Default serial placeholder: **`/dev/ttyACM0`**.
+
+4. Checks that **import and run** code from **`led-driver/src/`** belong in **`led-driver/tests/`** and run with **`mpremote run …`**. **Do not** add **`pytest`** under **`led-controller/tests/`** that **`sys.path`**-loads **`led-driver/src`** and runs those modules on CPython.
+
+## Import layout
+
+4. **No** **`sys.path.insert`**, **`__file__`** path stitching, or other import-path hacks under **`led-driver/`**. Use device flash search path, or host **`PYTHONPATH`** / layout you control.
+
+5. **No** “import fixer” code — fix copy order, flash paths, or env instead.
+
+## Imports (fail loudly)
+
+6. If a dependency does not load, **crash** and fix deployment or filesystem. **Do not** catch **`ImportError`** / **`ModuleNotFoundError`** around **`import`** / **`from … import`** for app/firmware modules (`settings`, `utils`, `network`, `machine`, …).
+
+7. **Allowed — stdlib name pairs only** (MicroPython vs CPython): one **`except ImportError`**, then **one** fallback import, **no** extra logic in **`except`**:
+   - `uos` → `os`
+   - `ubinascii` → `binascii`
+   - `utime` → `time`  
+   Not for “maybe the file exists on flash” — only different **stdlib** names.
+
+8. **No** large inline reimplementations after **`except ImportError`** — deploy the real module.
+
+## I/O
+
+9. Non-blocking **recv** / **accept**: use plain **`except OSError:`** (or **break** on empty). **No** errno / EAGAIN / EWOULDBLOCK tables or **`getattr(errno, …)`** unless fixing a **documented** target bug.
+
+10. Minimal **`try` / `except OSError`** around optional socket options (e.g. **`SO_REUSEADDR`**) is fine.
+
+## Host Python and `src/`
+
+11. **Do not** leave **`__pycache__/`** or **`.pyc`** under **`led-driver/src/`** from host runs. Remove if created; **`.gitignore`** already ignores it. Prefer **`PYTHONDONTWRITEBYTECODE=1`** or **`-B`** when host Python must touch **`led-driver/src/`**.
--- a/.cursor/rules/pattern-workflow.mdc
+++ b/.cursor/rules/pattern-workflow.mdc
@@ -0,0 +1,12 @@
+---
+description: Require test pattern, pattern metadata, and test preset for new patterns
+alwaysApply: true
+---
+
+# Pattern workflow requirements
+
+1. When creating a new pattern under `led-driver/src/patterns/`, also add/update a corresponding test file in `led-driver/tests/patterns/`.
+
+2. When adding a new pattern, ensure led-controller has `db/pattern.json`; if it does not exist, create it. Add the new pattern metadata and parameter mappings there.
+
+3. When adding a new pattern, add at least one test preset entry in `db/preset.json` in led-controller that uses the new pattern.
--- a/.cursor/rules/strict-user-scope.mdc
+++ b/.cursor/rules/strict-user-scope.mdc
@@ -0,0 +1,16 @@
+---
+description: enforce strict user-scoped changes only
+alwaysApply: true
+---
+
+# Strict User Scope
+
+1. Only implement exactly what the user asked for in the current message.
+
+2. Do not add extra refactors, cleanups, renames, architecture changes, or behavioural changes unless the user explicitly asked for them.
+
+3. If a potential improvement is noticed, mention it briefly and ask before changing code.
+
+4. For revert/undo requests, perform the narrowest possible revert and do not modify anything else.
+
+5. Keep edits minimal and local to the requested area.
--- a/.cursor/rules/submodules-led-driver-tool.mdc
+++ b/.cursor/rules/submodules-led-driver-tool.mdc
@@ -0,0 +1,18 @@
+---
+description: Keep led-driver and led-tool git submodules in sync when updating led-controller
+alwaysApply: true
+---
+
+# Submodule pointers (`led-driver`, `led-tool`)
+
+This repo tracks **`led-driver`** and **`led-tool`** as git submodules (see `.gitmodules`).
+
+When you **update led-controller** work that should ship with matching firmware or CLI behaviour—or when you finish changes **inside** those submodule directories—**record the new submodule commits in the parent repo**:
+
+1. In each submodule, commit and push on its remote if there are local commits (or ensure the checkout is the intended revision).
+2. From the **led-controller** root: `git add led-driver led-tool` after their HEADs point at the right commits.
+3. Include the parent-repo commit that bumps the gitlinks (so CI and clones get consistent trees).
+
+**Do not** leave submodule directories dirty or forgotten while presenting the parent repo as “done”: either commit the submodule pointer update in led-controller, or leave an explicit note if the user must push submodule remotes first.
+
+If the user only asked for a submodule bump with no code edits, a single `chore(submodules): bump led-driver and led-tool` style commit is appropriate (see commit rule).
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
 # Python
 __pycache__/
+# led-driver/src is MicroPython source — never keep host __pycache__ there (see .cursor/rules/led-driver.mdc)
+led-driver/src/__pycache__/
 *.py[cod]
 *$py.class
 *.so
@@ -23,8 +25,12 @@ ENV/
 Thumbs.db

 # Project specific
+scripts/.led-controller-venv
 docs/.help-print.html
 settings.json
+db/
 *.log
 *.db
 *.sqlite
+.pytest_cache/
+.ropeproject/
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "led-tool"]
 	path = led-tool
 	url = git@git.technical.kiwi:technicalkiwi/led-tool.git
+[submodule "led-simulator"]
+	path = led-simulator
+	url = git@git.technical.kiwi:technicalkiwi/led-simulator.git
--- a/15
+++ b/15
@@ -13,17 +13,20 @@ requests = "*"
 selenium = "*"
 adafruit-ampy = "*"
 microdot = "*"
+websockets = "*"

 [dev-packages]
 pytest = "*"

 [requires]
-python_version = "3.12"
+python_version = "3.11"

 [scripts]
-web = "python /home/pi/led-controller/tests/web.py"
-watch = "python -m watchfiles 'python tests/web.py' src tests"
-install = "pipenv install"
+web = "python tests/web.py"
+watch = "python -m watchfiles \"python tests/web.py\" src tests"
 run = "sh -c 'cd src && python main.py'"
-dev = "watchfiles \"sh -c 'cd src && python main.py'\" src"
-help-pdf = "sh scripts/build_help_pdf.sh"
+dev = "python -m watchfiles \"sh -c 'cd src && python main.py'\" src"
+test = "python -m pytest"
+test-browser = "sh -c 'python tests/web.py > /tmp/led-controller-web.log 2>&1 & pid=$!; trap \"kill $pid\" EXIT; sleep 2; LED_CONTROLLER_RUN_BROWSER_TESTS=1 LED_CONTROLLER_DEVICE_IP=http://127.0.0.1:5000 python -m pytest tests/test_browser.py'"
+test-browser-device = "sh -c 'LED_CONTROLLER_RUN_BROWSER_TESTS=1 python -m pytest tests/test_browser.py'"
+
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,11 +1,11 @@
 {
    "_meta": {
        "hash": {
-            "sha256": "6cec0fe6dec67c9177363a558131f333153b6caa47e1ddeca303cb0d19954cf8"
+            "sha256": "98da2012e549e7b62ed49a5e1717acaf535b71e8df61bf4108d25b9023be612e"
        },
        "pipfile-spec": 6,
        "requires": {
-            "python_version": "3.12"
+            "python_version": "3.11"
        },
        "sources": [
            {
@@ -42,112 +42,112 @@
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@@ -159,11 +159,11 @@
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@@ -541,11 +541,11 @@
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@@ -667,19 +667,19 @@
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-            "version": "==14.3.3"
+            "markers": "python_full_version >= '3.9.0'",
+            "version": "==15.0.0"
        },
        "rich-click": {
            "hashes": [
@@ -691,11 +691,11 @@
        },
        "selenium": {
            "hashes": [
-                "sha256:003e971f805231ad63e671783a2b91a299355d10cefb9de964c36ff3819115aa",
-                "sha256:b8ccde8d2e7642221ca64af184a92c19eee6accf2e27f20f30472f5efae18eb1"
+                "sha256:4f97639055dcfa9eadf8ccf549ba7b0e49c655d4e2bde19b9a44e916b754e769",
+                "sha256:bada5c08a989f812728a4b5bea884d8e91894e939a441cc3a025201ce718581e"
            ],
            "index": "pypi",
-            "version": "==4.41.0"
+            "version": "==4.43.0"
        },
        "sniffio": {
            "hashes": [
@@ -774,6 +774,7 @@
            "version": "==4.15.0"
        },
        "urllib3": {
+            "extras": [],
            "hashes": [
                "sha256:1b62b6884944a57dbe321509ab94fd4d3b307075e0c2eae991ac71ee15ad38ed",
                "sha256:bf272323e553dfb2e87d9bfd225ca7b0f467b919d7bbd355436d3fd37cb0acd4"
@@ -904,6 +905,73 @@
            "markers": "python_version >= '3.9'",
            "version": "==1.9.0"
        },
+        "websockets": {
+            "hashes": [
+                "sha256:0298d07ee155e2e9fda5be8a9042200dd2e3bb0b8a38482156576f863a9d457c",
+                "sha256:04cdd5d2d1dacbad0a7bf36ccbcd3ccd5a30ee188f2560b7a62a30d14107b31a",
+                "sha256:08d7af67b64d29823fed316505a89b86705f2b7981c07848fb5e3ea3020c1abe",
+                "sha256:152284a83a00c59b759697b7f9e9cddf4e3c7861dd0d964b472b70f78f89e80e",
+                "sha256:1637db62fad1dc833276dded54215f2c7fa46912301a24bd94d45d46a011ceec",
+                "sha256:19c4dc84098e523fd63711e563077d39e90ec6702aff4b5d9e344a60cb3c0cb1",
+                "sha256:1c1b30e4f497b0b354057f3467f56244c603a79c0d1dafce1d16c283c25f6e64",
+                "sha256:2b9f1e0d69bc60a4a87349d50c09a037a2607918746f07de04df9e43252c77a3",
+                "sha256:31a52addea25187bde0797a97d6fc3d2f92b6f72a9370792d65a6e84615ac8a8",
+                "sha256:32da954ffa2814258030e5a57bc73a3635463238e797c7375dc8091327434206",
+                "sha256:335c23addf3d5e6a8633f9f8eda77efad001671e80b95c491dd0924587ece0b3",
+                "sha256:3425ac5cf448801335d6fdc7ae1eb22072055417a96cc6b31b3861f455fbc156",
+                "sha256:349f83cd6c9a415428ee1005cadb5c2c56f4389bc06a9af16103c3bc3dcc8b7d",
+                "sha256:37b31c1623c6605e4c00d466c9d633f9b812ea430c11c8a278774a1fde1acfa9",
+                "sha256:417b28978cdccab24f46400586d128366313e8a96312e4b9362a4af504f3bbad",
+                "sha256:485c49116d0af10ac698623c513c1cc01c9446c058a4e61e3bf6c19dff7335a2",
+                "sha256:4a1aba3340a8dca8db6eb5a7986157f52eb9e436b74813764241981ca4888f03",
+                "sha256:50f23cdd8343b984957e4077839841146f67a3d31ab0d00e6b824e74c5b2f6e8",
+                "sha256:52a0fec0e6c8d9a784c2c78276a48a2bdf099e4ccc2a4cad53b27718dbfd0230",
+                "sha256:52ac480f44d32970d66763115edea932f1c5b1312de36df06d6b219f6741eed8",
+                "sha256:5569417dc80977fc8c2d43a86f78e0a5a22fee17565d78621b6bb264a115d4ea",
+                "sha256:569d01a4e7fba956c5ae4fc988f0d4e187900f5497ce46339c996dbf24f17641",
+                "sha256:583b7c42688636f930688d712885cf1531326ee05effd982028212ccc13e5957",
+                "sha256:5a4b4cc550cb665dd8a47f868c8d04c8230f857363ad3c9caf7a0c3bf8c61ca6",
+                "sha256:5f451484aeb5cafee1ccf789b1b66f535409d038c56966d6101740c1614b86c6",
+                "sha256:5f6261a5e56e8d5c42a4497b364ea24d94d9563e8fbd44e78ac40879c60179b5",
+                "sha256:6e5a82b677f8f6f59e8dfc34ec06ca6b5b48bc4fcda346acd093694cc2c24d8f",
+                "sha256:71c989cbf3254fbd5e84d3bff31e4da39c43f884e64f2551d14bb3c186230f00",
+                "sha256:781caf5e8eee67f663126490c2f96f40906594cb86b408a703630f95550a8c3e",
+                "sha256:7be95cfb0a4dae143eaed2bcba8ac23f4892d8971311f1b06f3c6b78952ee70b",
+                "sha256:7d837379b647c0c4c2355c2499723f82f1635fd2c26510e1f587d89bc2199e72",
+                "sha256:86890e837d61574c92a97496d590968b23c2ef0aeb8a9bc9421d174cd378ae39",
+                "sha256:878b336ac47938b474c8f982ac2f7266a540adc3fa4ad74ae96fea9823a02cc9",
+                "sha256:8b6e209ffee39ff1b6d0fa7bfef6de950c60dfb91b8fcead17da4ee539121a79",
+                "sha256:8cc451a50f2aee53042ac52d2d053d08bf89bcb31ae799cb4487587661c038a0",
+                "sha256:8d7f0659570eefb578dacde98e24fb60af35350193e4f56e11190787bee77dac",
+                "sha256:8e1dab317b6e77424356e11e99a432b7cb2f3ec8c5ab4dabbcee6add48f72b35",
+                "sha256:8ff32bb86522a9e5e31439a58addbb0166f0204d64066fb955265c4e214160f0",
+                "sha256:95724e638f0f9c350bb1c2b0a7ad0e83d9cc0c9259f3ea94e40d7b02a2179ae5",
+                "sha256:9b5aca38b67492ef518a8ab76851862488a478602229112c4b0d58d63a7a4d5c",
+                "sha256:a069d734c4a043182729edd3e9f247c3b2a4035415a9172fd0f1b71658a320a8",
+                "sha256:a0b31e0b424cc6b5a04b8838bbaec1688834b2383256688cf47eb97412531da1",
+                "sha256:a35539cacc3febb22b8f4d4a99cc79b104226a756aa7400adc722e83b0d03244",
+                "sha256:a5e18a238a2b2249c9a9235466b90e96ae4795672598a58772dd806edc7ac6d3",
+                "sha256:a653aea902e0324b52f1613332ddf50b00c06fdaf7e92624fbf8c77c78fa5767",
+                "sha256:abf050a199613f64c886ea10f38b47770a65154dc37181bfaff70c160f45315a",
+                "sha256:af80d74d4edfa3cb9ed973a0a5ba2b2a549371f8a741e0800cb07becdd20f23d",
+                "sha256:b14dc141ed6d2dde437cddb216004bcac6a1df0935d79656387bd41632ba0bbd",
+                "sha256:b784ca5de850f4ce93ec85d3269d24d4c82f22b7212023c974c401d4980ebc5e",
+                "sha256:bc59589ab64b0022385f429b94697348a6a234e8ce22544e3681b2e9331b5944",
+                "sha256:c0204dc62a89dc9d50d682412c10b3542d748260d743500a85c13cd1ee4bde82",
+                "sha256:c0ee0e63f23914732c6d7e0cce24915c48f3f1512ec1d079ed01fc629dab269d",
+                "sha256:caab51a72c51973ca21fa8a18bd8165e1a0183f1ac7066a182ff27107b71e1a4",
+                "sha256:d6297ce39ce5c2e6feb13c1a996a2ded3b6832155fcfc920265c76f24c7cceb5",
+                "sha256:daa3b6ff70a9241cf6c7fc9e949d41232d9d7d26fd3522b1ad2b4d62487e9904",
+                "sha256:df57afc692e517a85e65b72e165356ed1df12386ecb879ad5693be08fac65dde",
+                "sha256:e0334872c0a37b606418ac52f6ab9cfd17317ac26365f7f65e203e2d0d0d359f",
+                "sha256:e6578ed5b6981005df1860a56e3617f14a6c307e6a71b4fff8c48fdc50f3ed2c",
+                "sha256:eaded469f5e5b7294e2bdca0ab06becb6756ea86894a47806456089298813c89",
+                "sha256:f4a32d1bd841d4bcbffdcb3d2ce50c09c3909fbead375ab28d0181af89fd04da",
+                "sha256:fd3cb4adb94a2a6e2b7c0d8d05cb94e6f1c81a0cf9dc2694fb65c7e8d94c42e4"
+            ],
+            "index": "pypi",
+            "version": "==16.0"
+        },
        "wsproto": {
            "hashes": [
                "sha256:61eea322cdf56e8cc904bd3ad7573359a242ba65688716b0710a5eb12beab584",
@@ -924,11 +992,11 @@
        },
        "packaging": {
            "hashes": [
-                "sha256:00243ae351a257117b6a241061796684b084ed1c516a08c48a3f7e147a9d80b4",
-                "sha256:b36f1fef9334a5588b4166f8bcd26a14e521f2b55e6b9de3aaa80d3ff7a37529"
+                "sha256:5fc45236b9446107ff2415ce77c807cee2862cb6fac22b8a73826d0693b0980e",
+                "sha256:ff452ff5a3e828ce110190feff1178bb1f2ea2281fa2075aadb987c2fb221661"
            ],
            "markers": "python_version >= '3.8'",
-            "version": "==26.0"
+            "version": "==26.2"
        },
        "pluggy": {
            "hashes": [
@@ -940,19 +1008,19 @@
        },
        "pygments": {
            "hashes": [
-                "sha256:636cb2477cec7f8952536970bc533bc43743542f70392ae026374600add5b887",
-                "sha256:86540386c03d588bb81d44bc3928634ff26449851e99741617ecb9037ee5ec0b"
+                "sha256:6757cd03768053ff99f3039c1a36d6c0aa0b263438fcab17520b30a303a82b5f",
+                "sha256:81a9e26dd42fd28a23a2d169d86d7ac03b46e2f8b59ed4698fb4785f946d0176"
            ],
-            "markers": "python_version >= '3.8'",
-            "version": "==2.19.2"
+            "markers": "python_version >= '3.9'",
+            "version": "==2.20.0"
        },
        "pytest": {
            "hashes": [
-                "sha256:711ffd45bf766d5264d487b917733b453d917afd2b0ad65223959f59089f875b",
-                "sha256:75186651a92bd89611d1d9fc20f0b4345fd827c41ccd5c299a868a05d70edf11"
+                "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9",
+                "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c"
            ],
            "index": "pypi",
-            "version": "==9.0.2"
+            "version": "==9.0.3"
        }
    }
 }
--- a/README.md
+++ b/README.md
@@ -1,23 +1,26 @@
 # led-controller

-LED controller web app for managing profiles, tabs, presets, and colour palettes, and sending commands to LED devices over the serial -> ESP-NOW bridge.
+LED controller web app for managing profiles, **zones**, presets, and colour palettes, and sending commands to LED devices. Outbound paths include:
+
+- **Serial → ESP-NOW bridge**: JSON lines over UART to an ESP32 that forwards ESP-NOW frames (configure `serial_port` and baud in `settings.json` / Settings model).
+- **Wi-Fi LED drivers**: TCP JSON lines (default port **8765** on the Pi; drivers discover the controller via **UDP 8766** broadcast).

 ## Run

 - One-time setup for port 80 without root: `sudo scripts/setup-port80.sh`
- Start app: `pipenv run run`
+- Start app: `pipenv run run` (override listen port with the **`PORT`** environment variable)
 - Dev watcher (auto-restart on `src/` changes): `pipenv run dev`
 - Regenerate **`docs/help.pdf`** from **`docs/help.md`**: `pipenv run help-pdf` (requires **pandoc** and **chromium** on the host)

 ## UI modes

- **Run mode**: focused control view. Select tabs/presets and apply profiles. Editing actions are hidden.
- **Edit mode**: management view. Shows Tabs, Presets, Patterns, Colour Palette, and Send Presets controls, plus per-tile preset edit/remove and drag-reorder.
+- **Run mode**: focused control view. Select zones/presets and apply profiles. Editing actions are hidden.
+- **Edit mode**: management view. Shows **Zones**, Presets, Patterns, Colour Palette, and Send Presets controls, plus per-tile preset edit/remove and drag-reorder.

 ## Profiles

 - Applying a profile updates session scope and refreshes the active zone content.
- In **Run mode**, Profiles supports apply-only behavior (no create/clone/delete).
+- In **Run mode**, Profiles supports apply-only behaviour (no create/clone/delete).
 - In **Edit mode**, Profiles supports create/clone/delete.
 - Creating a profile always creates a populated `default` zone (starter presets).
 - Optional **DJ zone** seeding creates:
@@ -35,3 +38,6 @@ LED controller web app for managing profiles, tabs, presets, and colour palettes

 - Main API reference: `docs/API.md`

+## Driver pattern modules
+
+Pattern **`.py`** sources live under **`led-driver/src/patterns`**. The Pi app resolves that path via `util.driver_patterns.driver_patterns_dir()`. If you deploy without that tree next to the app, set **`LED_CONTROLLER_PATTERNS_DIR`** to the directory that contains those files.
--- a/db/device.json
+++ b/db/device.json
@@ -1 +0,0 @@
-{"f0f5bdfb9d30": {"id": "f0f5bdfb9d30", "name": "a", "type": "led", "transport": "wifi", "address": "10.1.1.182", "default_pattern": null, "zones": []}, "188b0e1560a8": {"id": "188b0e1560a8", "name": "a", "type": "led", "transport": "wifi", "address": "10.1.1.242", "default_pattern": null, "zones": []}, "24ec4acaffcc": {"id": "24ec4acaffcc", "name": "c", "type": "led", "transport": "wifi", "address": "10.1.1.171", "default_pattern": null, "zones": []}}
--- a/db/pattern.json
+++ b/db/pattern.json
@@ -1,54 +1 @@
-{
-    "on": {
-            "min_delay": 10,
-            "max_delay": 10000,
-            "max_colors": 1
-        },
-    "off": {
-        "min_delay": 10,
-        "max_delay": 10000,
-        "max_colors": 0
-    },
-    "rainbow": {
-        "n1": "Step Rate",
-        "min_delay": 10,
-        "max_delay": 10000,
-        "max_colors": 0
-    },
-    "transition": {
-        "min_delay": 10,
-        "max_delay": 10000,
-        "max_colors": 10
-    },
-    "chase": {
-        "n1": "Colour 1 Length",
-        "n2": "Colour 2 Length",
-        "n3": "Step 1",
-        "n4": "Step 2",
-        "min_delay": 10,
-        "max_delay": 10000,
-        "max_colors": 2
-    },
-    "pulse": {
-        "n1": "Attack",
-        "n2": "Hold",
-        "n3": "Decay",
-        "min_delay": 10,
-        "max_delay": 10000,
-        "max_colors": 10
-    },
-    "circle": {
-        "n1": "Head Rate",
-        "n2": "Max Length",
-        "n3": "Tail Rate",
-        "n4": "Min Length",
-        "min_delay": 10,
-        "max_delay": 10000,
-        "max_colors": 2
-    },
-    "blink": {
-        "min_delay": 10,
-        "max_delay": 10000,
-        "max_colors": 10
-    }
-}
+{"on": {"min_delay": 10, "max_delay": 10000, "max_colors": 1}, "off": {"min_delay": 10, "max_delay": 10000, "max_colors": 0}, "rainbow": {"n1": "Step Rate", "min_delay": 10, "max_delay": 10000, "max_colors": 0}, "colour_cycle": {"n1": "Step Rate", "min_delay": 10, "max_delay": 10000, "max_colors": 10}, "transition": {"min_delay": 10, "max_delay": 10000, "max_colors": 10}, "chase": {"n1": "Colour 1 Length", "n2": "Colour 2 Length", "n3": "Step 1", "n4": "Step 2", "min_delay": 10, "max_delay": 10000, "max_colors": 2, "has_background": true}, "pulse": {"n1": "Attack", "n2": "Hold", "n3": "Decay", "min_delay": 10, "max_delay": 10000, "max_colors": 10, "has_background": true}, "circle": {"n1": "Head Rate", "n2": "Max Length", "n3": "Tail Rate", "n4": "Min Length", "min_delay": 10, "max_delay": 10000, "max_colors": 2, "has_background": true}, "blink": {"min_delay": 10, "max_delay": 10000, "max_colors": 10, "has_background": true}, "flicker": {"n1": "Min brightness", "min_delay": 10, "max_delay": 10000, "max_colors": 10}, "flame": {"n1": "Min brightness", "n2": "Breath period (ms)", "n3": "Spark gap min (ms, 0=default 10–30 s, -1=off)", "n4": "Spark gap max (ms)", "min_delay": 10, "max_delay": 10000, "max_colors": 10}, "twinkle": {"n1": "Twinkle activity (1–255, higher = more changes)", "n2": "Density (0–255, higher = more of the strip lit)", "n3": "Min adjacent LEDs per twinkle (same as max for fixed length)", "n4": "Max adjacent LEDs per twinkle (same as min for fixed length)", "min_delay": 10, "max_delay": 10000, "max_colors": 10, "has_background": true}, "radiate": {"n1": "Node spacing (LEDs)", "n2": "Out time (ms)", "n3": "In time (ms)", "min_delay": 10, "max_delay": 10000, "max_colors": 2, "has_background": true}, "meteor_rain": {"n1": "Tail length", "n2": "Speed (LEDs per frame)", "n3": "Fade amount (1-255)", "min_delay": 10, "max_delay": 10000, "max_colors": 10}, "scanner": {"n1": "Eye width", "n2": "End pause (frames)", "min_delay": 10, "max_delay": 10000, "max_colors": 10, "has_background": true}, "gradient_scroll": {"n1": "Scroll step rate", "min_delay": 10, "max_delay": 10000, "max_colors": 10}, "comet_dual": {"n1": "Tail length", "n2": "Speed", "n3": "Gap", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "sparkle_trail": {"n1": "Spark density", "n2": "Decay", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "wave": {"n1": "Wavelength", "n2": "Amplitude", "n3": "Drift speed", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "plasma": {"n1": "Scale", "n2": "Speed", "n3": "Contrast", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "segment_chase": {"n1": "Segment size", "n2": "Phase step", "n3": "Segment phase offset", "n4": "Gap per segment", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "bar_graph": {"n1": "Level percent", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "breathing_dual": {"n1": "Phase offset", "n2": "Ease", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "strobe_burst": {"n1": "Burst count", "n2": "Burst gap", "n3": "Cooldown", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "rain_drops": {"n1": "Drop rate", "n2": "Ripple width", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "fireflies": {"n1": "Count", "n2": "Twinkle speed", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "clock_sweep": {"n1": "Hand width", "n2": "Marker interval", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "marquee": {"n1": "On length", "n2": "Off length", "n3": "Step", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "aurora": {"n1": "Band count", "n2": "Shimmer", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "snowfall": {"n1": "Flake density", "n2": "Fall speed", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "heartbeat": {"n1": "Pulse 1 ms", "n2": "Pulse 2 ms", "n3": "Pause ms", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "orbit": {"n1": "Orbit count", "n2": "Base speed", "max_colors": 10, "min_delay": 10, "max_delay": 10000, "has_background": true}, "palette_morph": {"n1": "Morph ms", "n2": "Warp rate", "n3": "Turbulence", "max_colors": 10, "min_delay": 10, "max_delay": 10000}}
--- a/db/preset.json
+++ b/db/preset.json
--- a/db/presets/1.bin
+++ b/db/presets/1.bin
--- a/db/presets/10.bin
+++ b/db/presets/10.bin
@@ -0,0 +1,3 @@
+PRST1xœ%ÎÁ
+Â0Ð_‘ñšCSµJîæ'D$¶«
+ÄÝ’¦ˆˆÿntOovæ²opxz‘´zŽ±¦P
--- a/db/presets/11.bin
+++ b/db/presets/11.bin
@@ -0,0 +1,2 @@
+PRST1xњ%ОAВ …б»<·,J5\Е4
+К $84SX4Ж»‹eхеНlюШЅ	B
--- a/db/presets/12.bin
+++ b/db/presets/12.bin
@@ -0,0 +1 @@
+PRST1xœ%ÎAÂ Ð»|·, ŠÐK˜ÆP;*	
--- a/db/presets/13.bin
+++ b/db/presets/13.bin
@@ -0,0 +1,2 @@
+PRST1xœEÎÁ
+Â0Ð_‘9ç`«QÉ¯ˆ”Ô®ˆ»e“RDüwsðô˜™Ë¼ÁñIÐ˜x”uS²¬p˜c¤ü¬»J-ç‹Ã¨éþ¨LÅrï½ÃD9¾:¿uˆK„ª9pg¥Ñ#ØÂ»Æ¾á‡Æ±qú1«ÜR¦!Mö¡Ãç<0B><>1
--- a/db/presets/14.bin
+++ b/db/presets/14.bin
@@ -0,0 +1,2 @@
+PRST1xœ=ÎÝ
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+++ b/db/presets/15.bin
--- a/db/presets/2.bin
+++ b/db/presets/2.bin
--- a/db/presets/3.bin
+++ b/db/presets/3.bin
@@ -0,0 +1,2 @@
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+++ b/db/presets/30.bin
@@ -0,0 +1,2 @@
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+++ b/db/presets/31.bin
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+++ b/db/presets/32.bin
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+++ b/db/presets/39.bin
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+++ b/db/presets/44.bin
@@ -0,0 +1,2 @@
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+++ b/db/presets/45.bin
@@ -0,0 +1,3 @@
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+++ b/db/presets/46.bin
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+++ b/db/presets/47.bin
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+++ b/db/presets/48.bin
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+++ b/db/presets/5.bin
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+++ b/db/presets/50.bin
@@ -0,0 +1,2 @@
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+++ b/db/presets/51.bin
--- a/db/presets/52.bin
+++ b/db/presets/52.bin
--- a/db/presets/53.bin
+++ b/db/presets/53.bin
@@ -0,0 +1,2 @@
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+7˜
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+++ b/db/presets/54.bin
@@ -0,0 +1,3 @@
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+++ b/db/presets/55.bin
@@ -0,0 +1,4 @@
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+ofŸiž
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+++ b/db/presets/56.bin
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+++ b/db/presets/57.bin
@@ -0,0 +1 @@
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+++ b/db/presets/58.bin
@@ -0,0 +1,2 @@
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+++ b/db/presets/59.bin
@@ -0,0 +1,3 @@
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+++ b/db/presets/6.bin
@@ -0,0 +1,2 @@
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+++ b/db/presets/60.bin
@@ -0,0 +1,4 @@
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--- a/db/presets/61.bin
+++ b/db/presets/61.bin
--- a/db/presets/62.bin
+++ b/db/presets/62.bin
@@ -0,0 +1,3 @@
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--- a/db/presets/7.bin
+++ b/db/presets/7.bin
@@ -0,0 +1,3 @@
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--- a/db/presets/8.bin
+++ b/db/presets/8.bin
--- a/db/presets/9.bin
+++ b/db/presets/9.bin
@@ -0,0 +1,2 @@
+PRST1xœ%ÎK
+Ã0Ð«”éÖ‹$ýâ«”ÜFnŽ›PJï^ÇÖæI£Í|Áf&hlFæÃ6¹HPXLŒ$œãÀù|d…~àhË WxŠ{O‘iÍ<69>®iFòæÝî»I1@GI¤À-tŽ¸«œ*çÊ¥rÜ*÷Â"Á:Oƒs<>¶´ò”{
--- a/db/zone.json
+++ b/db/zone.json
@@ -1 +0,0 @@
-{"1": {"name": "default", "names": ["a", "c", "a"], "presets": [["4", "2", "7"], ["3", "14", "5"], ["8", "10", "11"], ["9", "12", "1"], ["13", "37", "6"]], "presets_flat": ["4", "2", "7", "3", "14", "5", "8", "10", "11", "9", "12", "1", "13", "37", "6"], "default_preset": "15"}, "2": {"name": "default", "names": ["1", "2", "3", "4", "5", "6", "7", "8", "0", "a"], "presets": [["16", "17", "18"], ["19", "20", "21"], ["22", "23", "24"], ["25", "26", "27"], ["28", "29", "30"]], "presets_flat": ["16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30"]}, "3": {"name": "default", "names": ["1"], "presets": [], "default_preset": null}, "4": {"name": "default", "names": ["1"], "presets": [], "default_preset": null}, "5": {"name": "dj", "names": ["dj"], "presets": [["31", "32", "33"]], "default_preset": "31", "presets_flat": ["31", "32", "33"]}, "6": {"name": "default", "names": ["1"], "presets": [], "default_preset": null}, "7": {"name": "dj", "names": ["dj"], "presets": [["34", "35", "36"]], "default_preset": "34", "presets_flat": ["34", "35", "36"]}, "8": {"name": "test", "names": ["11"], "presets": [["1", "2", "3"], ["4", "5"]], "default_preset": "1", "presets_flat": ["1", "2", "3", "4", "5"]}}
--- a/dev.py
+++ b/dev.py
@@ -1,53 +0,0 @@
-#!/usr/bin/env python3
-
-import subprocess
-import serial
-import sys
-
-print(sys.argv)
-
-# Extract port (first arg if it's not a command)
-commands = ["src", "lib", "ls", "reset", "follow", "db"]
-port = None
-if len(sys.argv) > 1 and sys.argv[1] not in commands:
-    port = sys.argv[1]
-
-
-for cmd in sys.argv[1:]:
-    print(cmd)
-    match cmd:
-        case "src":
-            if port:
-                subprocess.call(["mpremote", "connect", port, "fs", "cp", "-r", ".", ":" ], cwd="src")
-            else:
-                print("Error: Port required for 'src' command")
-        case "lib":
-            if port:
-                subprocess.call(["mpremote", "connect", port, "fs", "cp", "-r", "lib", ":" ])
-            else:
-                print("Error: Port required for 'lib' command")
-        case "ls":
-            if port:
-                subprocess.call(["mpremote", "connect", port, "fs", "ls", ":" ])
-            else:
-                print("Error: Port required for 'ls' command")
-        case "reset":
-            if port:
-                with serial.Serial(port, baudrate=115200) as ser:
-                    ser.write(b'\x03\x03\x04')
-            else:
-                print("Error: Port required for 'reset' command")
-        case "follow":
-            if port:
-                with serial.Serial(port, baudrate=115200) as ser:
-                    while True:
-                        if ser.in_waiting > 0:  # Check if there is data in the buffer
-                            data = ser.readline().decode('utf-8').strip()  # Read and decode the data
-                            print(data)
-            else:
-                print("Error: Port required for 'follow' command")
-        case "db":
-            if port:
-                subprocess.call(["mpremote", "connect", port, "fs", "cp", "-r", "db", ":" ])
-            else:
-                print("Error: Port required for 'db' command")
--- a/docs/API.md
+++ b/docs/API.md
@@ -2,10 +2,12 @@

 This document covers:

-1. **HTTP and WebSocket** exposed by the Raspberry Pi app (`src/main.py`) — profiles, presets, transport send, and related resources.
-2. **LED driver JSON** — the compact message format sent over the serial→ESP-NOW bridge to devices (same logical API as ESP-NOW payloads).
+1. **HTTP and WebSocket** exposed by the Raspberry Pi app (`src/main.py`) — profiles, zones, presets, transport send, pattern OTA helpers, and related resources.
+2. **LED driver JSON** — the compact **v1** message format. It is sent over the **serial → ESP-NOW bridge** to ESP32 peers and as **single JSON text messages** over the **outbound WebSocket** to **Wi-Fi** drivers (same logical fields).

-Default listen address: `0.0.0.0`. Port defaults to **80**; override with the `PORT` environment variable (see `pipenv run run`).
+Default HTTP listen address: `0.0.0.0`. Port defaults to **80**; override with the **`PORT`** environment variable (see `pipenv run run`).
+
+**Serial:** UART path and baud come from settings (defaults include `serial_port` such as `/dev/ttyS0` and `serial_baudrate`). **Wi-Fi drivers:** **UDP** on port **8766** is the **discovery** channel: each driver’s JSON hello (**`device_name`**, **MAC**, optional **`type`**) **creates or updates** that device in **`db/device.json`** (keyed by MAC); the Pi echoes the datagram. After a valid hello with **`v`:** **`"1"`**, the Pi also opens an **outbound WebSocket** to that IP (**`wifi_driver_ws_port`**, default **80**; **`wifi_driver_ws_path`**, default **`/ws`**) for v1 commands; presets are not pushed automatically on connect (use **Send Presets** / profile apply). The Pi may send periodic UDP **hello** nudges to known Wi‑Fi device IPs when the WebSocket is down (**`wifi_driver_hello_interval_s`** in settings).

 All JSON APIs use `Content-Type: application/json` for bodies and responses unless noted.

@@ -16,7 +18,7 @@ All JSON APIs use `Content-Type: application/json` for bodies and responses unle
 The main UI has two modes controlled by the mode toggle:

 - **Run mode**: optimized for operation (zone/preset selection and profile apply).
- **Edit mode**: shows editing/management controls (tabs, presets, patterns, colour palette, send presets, profile management actions, **Devices** registry for LED driver names/MACs, and related tools).
+- **Edit mode**: shows editing/management controls (zones, presets, patterns, colour palette, send presets, profile management actions, **Devices** registry for LED driver names/MACs, and related tools).

 Profiles are available in both modes, but behavior differs:

@@ -40,7 +42,7 @@ Profiles are selected with **`POST /profiles/<id>/apply`**, which sets `current_
 | Method | Path | Description |
 |--------|------|-------------|
 | GET | `/` | Main UI (`templates/index.html`) |
-| GET | `/settings` | Settings page (`templates/settings.html`) |
+| GET | `/settings/page` | Standalone settings page (`templates/settings.html`) |
 | GET | `/favicon.ico` | Empty response (204) |
 | GET | `/static/<path>` | Static files under `src/static/` |

@@ -50,10 +52,12 @@ Profiles are selected with **`POST /profiles/<id>/apply`**, which sets `current_

 Connect to **`ws://<host>:<port>/ws`**.

- Send **JSON**: the object is forwarded to the transport (serial bridge → ESP-NOW) as JSON. Optional key **`to`**: 12-character hex MAC address; if present it is removed from the object and the payload is sent to that peer; otherwise the default destination is used.
+- Send **JSON**: the object is forwarded through the **serial sender** (6-byte MAC prefix + payload to the ESP-NOW bridge). Optional key **`to`**: 12-character hex MAC address; if present it is removed from the object and the payload is sent to that peer; otherwise the default destination from settings is used.
 - Send **non-JSON text**: forwarded as raw bytes with the default address.
 - On send failure, the server may reply with `{"error": "Send failed"}`.

+Wi-Fi devices are not targeted by `/ws` directly; use **`POST /presets/send`**, device routes, or **`POST /patterns/<name>/send`** as appropriate.
+
 ---

 ## HTTP API by resource
@@ -68,7 +72,7 @@ Below, `<id>` values are string identifiers used by the JSON stores (numeric str
 | PUT | `/settings/settings` | Merge keys into settings and save. Returns `{"message": "Settings updated successfully"}`. |
 | GET | `/settings/wifi/ap` | Saved Wi‑Fi AP fields: `saved_ssid`, `saved_password`, `saved_channel`, `active` (Pi: `active` is always false). |
 | POST | `/settings/wifi/ap` | Body: `ssid` (required), `password`, `channel` (1–11). Persists AP-related settings. |
-| GET | `/settings/page` | Serves `templates/settings.html` (same page as `GET /settings` from the root app, for convenience). |
+| GET | `/settings/page` | Serves `templates/settings.html`. |

 ### Devices — `/devices`

@@ -77,11 +81,11 @@ Registry in `db/device.json`: storage key **`<id>`** (string, e.g. `"1"`) maps t
 | Field | Description |
 |-------|-------------|
 | **`id`** | Same as the storage key (stable handle for URLs). |
-| **`name`** | Shown in tabs and used in `select` keys. |
+| **`name`** | Shown in the UI and used in `select` keys. |
 | **`type`** | `led` (only value today; extensible). |
 | **`transport`** | `espnow` or `wifi`. |
 | **`address`** | For **`espnow`**: optional 12-character lowercase hex MAC. For **`wifi`**: optional IP or hostname string. |
-| **`default_pattern`**, **`tabs`** | Optional, as before. |
+| **`default_pattern`**, **`zones`** | Optional. Legacy **`tabs`** may still appear in old files and is migrated away on load. |

 Existing records without `type` / `transport` / `id` are backfilled on load (`led`, `espnow`, and `id` = key).

@@ -89,7 +93,7 @@ Existing records without `type` / `transport` / `id` are backfilled on load (`le
 |--------|------|-------------|
 | GET | `/devices` | Map of device id → device object. |
 | GET | `/devices/<id>` | One device, 404 if missing. |
-| POST | `/devices` | Create. Body: **`name`** (required), **`type`** (default `led`), **`transport`** (default `espnow`), optional **`address`**, **`default_pattern`**, **`tabs`**. Returns `{ "<id>": { ... } }`, 201. |
+| POST | `/devices` | Create. Body: **`name`** (required), **`type`** (default `led`), **`transport`** (default `espnow`), optional **`address`**, **`default_pattern`**, **`zones`**. Returns `{ "<id>": { ... } }`, 201. |
 | PUT | `/devices/<id>` | Partial update. **`name`** cannot be cleared. **`id`** in the body is ignored. **`type`** / **`transport`** validated; **`address`** normalised for the resulting transport. |
 | DELETE | `/devices/<id>` | Remove device. |

@@ -102,7 +106,7 @@ Existing records without `type` / `transport` / `id` are backfilled on load (`le
 | GET | `/profiles/<id>` | Single profile. If `<id>` is `current`, same as `/profiles/current`. |
 | POST | `/profiles` | Create profile. Body may include `name` and other fields. Optional `seed_dj_zone` (request-only) seeds a DJ zone + presets. New profiles always get a populated `default` zone. Returns `{ "<id>": { ... } }` with status 201. |
 | POST | `/profiles/<id>/apply` | Sets session current profile to `<id>`. |
-| POST | `/profiles/<id>/clone` | Clone profile (tabs, palettes, presets). Body may include `name`. |
+| POST | `/profiles/<id>/clone` | Clone profile (zones, palettes, presets). Body may include `name`. |
 | PUT | `/profiles/current` | Update the current profile (from session). |
 | PUT | `/profiles/<id>` | Update profile by id. |
 | DELETE | `/profiles/<id>` | Delete profile. |
@@ -143,11 +147,11 @@ Stored preset records can include:
 - `colors`: resolved hex colours for editor/display.
 - `palette_refs`: optional array of palette indexes parallel to `colors`. If a slot contains an integer index, the colour is linked to the current profile palette at that index.

-### Tabs — `/zones`
+### Zones — `/zones`

 | Method | Path | Description |
 |--------|------|-------------|
-| GET | `/zones` | `tabs`, `zone_order`, `current_zone_id`, `profile_id` for the session-backed profile. |
+| GET | `/zones` | `zones` (map of zone id → zone object), `zone_order`, `current_zone_id`, `profile_id` for the session-backed profile. |
 | GET | `/zones/current` | Current zone from cookie/session. |
 | POST | `/zones` | Create zone; optional JSON `name`, `names`, `presets`; can append to current profile’s zone list. |
 | GET | `/zones/<id>` | Zone JSON. |
@@ -198,20 +202,33 @@ Stored preset records can include:

 ### Patterns — `/patterns`

+Pattern metadata lives in **`db/pattern.json`**; driver source files live under **`led-driver/src/patterns/`**. Several routes expose a **runtime map** (metadata merged with on-disk `.py` names so new files appear in menus).
+
 | Method | Path | Description |
 |--------|------|-------------|
-| GET | `/patterns/definitions` | Contents of `pattern.json` (pattern metadata for the UI). |
-| GET | `/patterns` | All pattern records. |
-| GET | `/patterns/<id>` | One pattern. |
+| GET | `/patterns` | Runtime pattern map (object keyed by pattern id). |
+| GET | `/patterns/definitions` | Same runtime map (intended for UI “definitions” clients). |
+| GET | `/patterns/ota/manifest` | JSON `{"files":[{"name":"blink.py","url":"http://<Host>/patterns/ota/file/blink.py"},...]}` for OTA pulls. Requires **`Host`** header. |
+| GET | `/patterns/ota/file/<name>` | Raw **`.py`** source for one driver pattern (`name` must be a safe filename, e.g. `rainbow.py`). |
+| POST | `/patterns/<name>/send` | Push a **manifest** JSON line to **Wi-Fi** devices so they pull one pattern file over HTTP. Body may include **`device_id`** to target one device; otherwise all Wi-Fi devices with an **`address`** are tried. **`<name>`** may be with or without `.py`. |
+| POST | `/patterns/upload` | Body JSON: **`name`**, **`code`**, optional **`overwrite`** (default true). Writes **`led-driver/src/patterns/<name>.py`**. |
+| POST | `/patterns/driver` | Body JSON: **`name`** (identifier), **`code`**, optional metadata (`min_delay`, `max_delay`, `max_colors`, `n1`…`n8`, **`overwrite`**). Creates/updates both the **`.py`** file and **`db/pattern.json`** via the Pattern model. |
+| GET | `/patterns/<id>` | One pattern record from the Pattern model (metadata only). |
 | POST | `/patterns` | Create (`name`, optional `data`). |
 | PUT | `/patterns/<id>` | Update. |
 | DELETE | `/patterns/<id>` | Delete. |

+**Devices — pattern OTA push**
+
+| Method | Path | Description |
+|--------|------|-------------|
+| POST | `/devices/<id>/patterns/push` | Wi-Fi only. Asks the driver at **`address`** to pull pattern files from this server. Optional body **`manifest`**: either a **URL string** pointing at a manifest JSON document, or a **manifest object** (same shape as in driver messages). If omitted, a default manifest is built from the request **`Host`** header. |
+
 ---

-## LED driver message format (transport / ESP-NOW)
+## LED driver message format (transport / ESP-NOW / Wi-Fi)

-Messages are JSON objects. The Pi **`build_message()`** helper (`src/util/espnow_message.py`) produces the same shape sent over serial and forwarded by the ESP32 bridge.
+Messages are JSON objects. The Pi **`build_message()`** helper (`src/util/espnow_message.py`) produces the same shape sent over serial and forwarded by the ESP32 bridge, and the same logical object can be sent as a **single JSON text message** to a Wi-Fi driver over the **WebSocket**.

 ### Top-level fields

--- a/docs/SPECIFICATION.md
+++ b/docs/SPECIFICATION.md
@@ -350,7 +350,7 @@ Manage connected devices and create/manage device groups.

 #### Layout
 - **Header:** Title with "Add Device" button
- **Tabs:** Devices and Groups tabs
+- **Zones:** Devices and Groups zones (zone buttons / zone strip)
 - **Content Area:** Zone-specific content

 #### Devices Zone
@@ -1774,7 +1774,7 @@ peak_mem = usqlite.mem_peak()
 - Buttons respond to clicks
 - Sliders update values
 - Modals open/close
- Tabs switch correctly
+- Zone buttons switch correctly
 - Preset selector works
 - Preset creation form validates input
 - Preset cards display correctly
--- a/docs/help.md
+++ b/docs/help.md
@@ -1,6 +1,6 @@
 # LED controller — user guide

-This page describes the **main web UI** served from the Raspberry Pi app: profiles, tabs, presets, colour palettes, and sending commands to LED devices over the serial → ESP-NOW bridge.
+This page describes the **main web UI** served from the Raspberry Pi app: profiles, **zones**, presets, colour palettes, and sending commands to LED devices. Traffic may go over the **serial → ESP-NOW bridge** or **Wi-Fi** (TCP to drivers on the LAN), depending on each device’s transport.

 For HTTP routes and the wire format the driver expects, see **[API.md](API.md)**. For running the app locally, see the project **README**.

@@ -12,24 +12,24 @@ Figures below are **schematic** (layout and ideas), not pixel-perfect screenshot

 The header has a mode toggle (desktop and mobile menu). The **label on the button is the mode you switch to** when you press it.

-![Schematic: zone buttons on the left; Profiles, Tabs, Presets, Patterns, and the mode toggle on the right (example shows Edit mode with “Run mode” on the button).](images/help/header-toolbar.svg)
+![Schematic: zone buttons on the left; Profiles, Zones, Presets, Patterns, and the mode toggle on the right (example shows Edit mode with “Run mode” on the button).](images/help/header-toolbar.svg)

 *The active zone is highlighted. Extra management buttons appear only in Edit mode.*

 | Mode | Purpose |
 |------|--------|
 | **Run mode** | Day-to-day control: choose a zone, tap presets, apply profiles. Management buttons are hidden. |
-| **Edit mode** | Full setup: tabs, presets, patterns, colour palette, **Send Presets**, profile create/clone/delete, preset reordering, and per-tile **Edit** on the strip. |
+| **Edit mode** | Full setup: zones, presets, patterns, colour palette, **Send Presets**, profile create/clone/delete, preset reordering, and per-tile **Edit** on the strip. |

 **Profiles** is available in both modes: in Run mode you can only **apply** a profile; in Edit mode you can also **create**, **clone**, and **delete** profiles.

 ---

-## Tabs
+## Zones

 - **Select a zone**: click its button in the top bar. The main area shows that zone’s preset strip and controls.
 - **Edit mode — open zone settings**: **right-click** a zone button to change its name, **device IDs** (comma-separated), and which presets appear on the zone. Device identifiers are matched to each device’s **name** when the app builds `select` messages for the driver.
- **Tabs modal** (Edit mode): create new tabs from the header **Tabs** button. New tabs need a name and device ID list (defaults to `1` if you leave a simple placeholder).
+- **Zones modal** (Edit mode): create new zones from the header **Zones** button. New zones need a name and device ID list (defaults to `1` if you leave a simple placeholder).
 - **Brightness slider** (per zone): adjusts **global** brightness sent to devices (`b` in the driver message), with a short debounce so small drags do not flood the link.

 ---
@@ -68,7 +68,7 @@ The **Presets** header button (Edit mode) opens a **profile-wide** list: **Add**

 ## Profiles

- **Apply**: sets the **current profile** in your session. Tabs and presets you see are scoped to that profile.
+- **Apply**: sets the **current profile** in your session. Zones and presets you see are scoped to that profile.
 - **Edit mode — Create**: new profiles always get a populated **default** zone. Optionally tick **DJ zone** to also create a `dj` zone (device name `dj`) with starter DJ-oriented presets.
 - **Clone** / **Delete**: available in Edit mode from the profile list.

@@ -82,7 +82,9 @@ The **Presets** header button (Edit mode) opens a **profile-wide** list: **Add**

 ## Patterns

-The **Patterns** dialog (Edit mode) is a **read-only reference**: pattern names and typical **delay** ranges from the pattern definitions. It does not change device behaviour by itself; patterns are chosen inside the preset editor.
+The **Patterns** dialog (Edit mode) lists pattern names and typical **delay** ranges from the pattern definitions. Choosing a pattern still happens inside the preset editor.
+
+**Wi-Fi drivers** can install new pattern modules over HTTP: the REST API exposes **`/patterns/ota/*`**, **`POST /patterns/<name>/send`**, **`POST /patterns/upload`**, and **`POST /patterns/driver`** (see [API.md](API.md)). ESP-NOW devices follow the bridge/serial path you configure for preset traffic.

 ---

@@ -98,7 +100,7 @@ The **Patterns** dialog (Edit mode) is a **read-only reference**: pattern names

 ## Mobile layout

-On narrow screens, use **Menu** to reach the same actions as the desktop header (Profiles, Tabs, Presets, Help, mode toggle, etc.).
+On narrow screens, use **Menu** to reach the same actions as the desktop header (Profiles, Zones, Presets, Help, mode toggle, etc.).

 ![Schematic: narrow layout with Menu and the same header actions in a dropdown.](images/help/mobile-menu.svg)

@@ -108,5 +110,5 @@ On narrow screens, use **Menu** to reach the same actions as the desktop header

 ## Further reading

- **[API.md](API.md)** — REST routes, session scoping, WebSocket `/ws`, and LED driver JSON (`presets`, `select`, `save`, `default`, pattern keys).
+- **[API.md](API.md)** — REST routes, session scoping, WebSocket `/ws`, and LED driver JSON (`presets`, `select`, `save`, `default`, pattern keys, pattern **manifest**).
 - **README** — `pipenv run run`, port 80 setup, and high-level behaviour.
--- a/docs/help.pdf
+++ b/docs/help.pdf
--- a/esp32/benchmark_peers.py
+++ b/esp32/benchmark_peers.py
@@ -1,112 +0,0 @@
-# Benchmark: LRU eviction vs add-then-remove-after-use on ESP32.
-# Run on device: mpremote run esp32/benchmark_peers.py
-# (add/del_peer are timed; send() may fail if no peer is listening - timing still valid)
-import espnow
-import network
-import time
-
-BROADCAST = b"\xff\xff\xff\xff\xff\xff"
-MAX_PEERS = 20
-ITERATIONS = 50
-PAYLOAD = b"x" * 32  # small payload
-
-network.WLAN(network.STA_IF).active(True)
-esp = espnow.ESPNow()
-esp.active(True)
-esp.add_peer(BROADCAST)
-
-# Build 19 dummy MACs so we have 20 peers total (broadcast + 19).
-def mac(i):
-    return bytes([0, 0, 0, 0, 0, i])
-peers_list = [mac(i) for i in range(1, 20)]
-for p in peers_list:
-    esp.add_peer(p)
-
-# One "new" MAC we'll add/remove.
-new_mac = bytes([0, 0, 0, 0, 0, 99])
-
-def bench_lru():
-    """LRU: ensure_peer (evict oldest + add new), send, update last_used."""
-    last_used = {BROADCAST: time.ticks_ms()}
-    for p in peers_list:
-        last_used[p] = time.ticks_ms()
-    # Pre-remove one so we have 19; ensure_peer(new) will add 20th.
-    esp.del_peer(peers_list[-1])
-    last_used.pop(peers_list[-1], None)
-    # Now 19 peers. Each iteration: ensure_peer(new) -> add_peer(new), send, update.
-    # Next iter: ensure_peer(new) -> already there, just send. So we need to force
-    # eviction each time: use a different "new" each time so we always evict+add.
-    t0 = time.ticks_us()
-    for i in range(ITERATIONS):
-        addr = bytes([0, 0, 0, 0, 0, 50 + (i % 30)])  # 30 different "new" MACs
-        peers = esp.get_peers()
-        peer_macs = [p[0] for p in peers]
-        if addr not in peer_macs:
-            if len(peer_macs) >= MAX_PEERS:
-                oldest_mac = None
-                oldest_ts = time.ticks_ms()
-                for m in peer_macs:
-                    if m == BROADCAST:
-                        continue
-                    ts = last_used.get(m, 0)
-                    if ts <= oldest_ts:
-                        oldest_ts = ts
-                        oldest_mac = m
-                if oldest_mac is not None:
-                    esp.del_peer(oldest_mac)
-                    last_used.pop(oldest_mac, None)
-            esp.add_peer(addr)
-        esp.send(addr, PAYLOAD)
-        last_used[addr] = time.ticks_ms()
-    t1 = time.ticks_us()
-    return time.ticks_diff(t1, t0)
-
-def bench_add_then_remove():
-    """Add peer, send, del_peer (remove after use). At 20 we must del one first."""
-    # Start full: 20 peers. To add new we del any one, add new, send, del new.
-    victim = peers_list[0]
-    t0 = time.ticks_us()
-    for i in range(ITERATIONS):
-        esp.del_peer(victim)  # make room
-        esp.add_peer(new_mac)
-        esp.send(new_mac, PAYLOAD)
-        esp.del_peer(new_mac)
-        esp.add_peer(victim)  # put victim back so we're at 20 again
-    t1 = time.ticks_us()
-    return time.ticks_diff(t1, t0)
-
-def bench_send_existing():
-    """Baseline: send to existing peer only (no add/del)."""
-    t0 = time.ticks_us()
-    for _ in range(ITERATIONS):
-        esp.send(peers_list[0], PAYLOAD)
-    t1 = time.ticks_us()
-    return time.ticks_diff(t1, t0)
-
-print("ESP-NOW peer benchmark ({} iterations)".format(ITERATIONS))
-print()
-
-# Baseline: send to existing peer
-try:
-    us = bench_send_existing()
-    print("Send to existing peer only: {:>8} us total  {:>7.1f} us/iter".format(us, us / ITERATIONS))
-except Exception as e:
-    print("Send existing failed:", e)
-print()
-
-# LRU: evict oldest then add new, send
-try:
-    us = bench_lru()
-    print("LRU (evict oldest + add + send): {:>8} us total  {:>7.1f} us/iter".format(us, us / ITERATIONS))
-except Exception as e:
-    print("LRU failed:", e)
-print()
-
-# Add then remove after use
-try:
-    us = bench_add_then_remove()
-    print("Add then remove after use:       {:>8} us total  {:>7.1f} us/iter".format(us, us / ITERATIONS))
-except Exception as e:
-    print("Add-then-remove failed:", e)
-print()
-print("Done.")
--- a/esp32/main.py
+++ b/esp32/main.py
@@ -1,253 +0,0 @@
-# Serial-to-ESP-NOW bridge: JSON in both directions on UART + ESP-NOW.
-#
-# Pi → UART (two supported forms):
-#   A) Legacy: 6 bytes destination MAC + UTF-8 JSON payload (one write = one frame).
-#   B) Newline JSON: one object per line, UTF-8, ending with \n
-#      - Multicast via ESP32: {"m":"split","peers":["12hex",...],"body":{...}}
-#      - Unicast / broadcast: {"to":"12hex","v":"1",...}  (all keys except to/dest go to peers)
-#
-# ESP-NOW → Pi: newline-delimited JSON, one object per packet:
-#   {"dir":"espnow_rx","from":"<12hex>","payload":{...}}   if body was JSON
-#   {"dir":"espnow_rx","from":"<12hex>","payload_text":"..."} if UTF-8 not JSON
-#   {"dir":"espnow_rx","from":"<12hex>","payload_b64":"..."} if binary
-from machine import Pin, UART
-import espnow
-import json
-import network
-import time
-import ubinascii
-
-UART_BAUD = 912000
-BROADCAST = b"\xff\xff\xff\xff\xff\xff"
-MAX_PEERS = 20
-WIFI_CHANNEL = 6
-
-sta = network.WLAN(network.STA_IF)
-sta.active(True)
-sta.config(pm=network.WLAN.PM_NONE, channel=WIFI_CHANNEL)
-print("WiFi STA channel:", sta.config("channel"), "(WIFI_CHANNEL=%s)" % WIFI_CHANNEL)
-
-esp = espnow.ESPNow()
-esp.active(True)
-esp.add_peer(BROADCAST)
-
-uart = UART(1, UART_BAUD, tx=Pin(21), rx=Pin(6))
-
-last_used = {BROADCAST: time.ticks_ms()}
-uart_rx_buf = b""
-
-ESP_ERR_ESPNOW_EXIST = -12395
-
-
-def ensure_peer(addr):
-    peers = esp.get_peers()
-    peer_macs = [p[0] for p in peers]
-    if addr in peer_macs:
-        return
-    if len(peer_macs) >= MAX_PEERS:
-        oldest_mac = None
-        oldest_ts = time.ticks_ms()
-        for mac in peer_macs:
-            if mac == BROADCAST:
-                continue
-            ts = last_used.get(mac, 0)
-            if ts <= oldest_ts:
-                oldest_ts = ts
-                oldest_mac = mac
-        if oldest_mac is not None:
-            esp.del_peer(oldest_mac)
-            last_used.pop(oldest_mac, None)
-    try:
-        esp.add_peer(addr)
-    except OSError as e:
-        if e.args[0] != ESP_ERR_ESPNOW_EXIST:
-            raise
-
-
-def try_apply_bridge_config(obj):
-    """Pi sends {"m":"bridge","ch":1..11} — set STA channel only; do not ESP-NOW forward."""
-    if not isinstance(obj, dict) or obj.get("m") != "bridge":
-        return False
-    ch = obj.get("ch")
-    if ch is None:
-        ch = obj.get("wifi_channel")
-    if ch is None:
-        return True
-    try:
-        n = int(ch)
-        if 1 <= n <= 11:
-            sta.config(pm=network.WLAN.PM_NONE, channel=n)
-            print("Bridge STA channel ->", n)
-    except Exception as e:
-        print("bridge config:", e)
-    return True
-
-
-def send_split_from_obj(obj):
-    """obj has m=split, peers=[12hex,...], body=dict."""
-    body = obj.get("body")
-    if body is None:
-        return
-    try:
-        out = json.dumps(body).encode("utf-8")
-    except (TypeError, ValueError):
-        return
-    for peer in obj.get("peers") or []:
-        if not isinstance(peer, str) or len(peer) != 12:
-            continue
-        try:
-            mac = bytes.fromhex(peer)
-        except ValueError:
-            continue
-        if len(mac) != 6:
-            continue
-        ensure_peer(mac)
-        esp.send(mac, out)
-        last_used[mac] = time.ticks_ms()
-
-
-def process_broadcast_payload_split_or_flood(payload):
-    try:
-        text = payload.decode("utf-8")
-        obj = json.loads(text)
-    except Exception:
-        obj = None
-    if isinstance(obj, dict) and try_apply_bridge_config(obj):
-        return
-    if (
-        isinstance(obj, dict)
-        and obj.get("m") == "split"
-        and isinstance(obj.get("peers"), list)
-    ):
-        send_split_from_obj(obj)
-        return
-    ensure_peer(BROADCAST)
-    esp.send(BROADCAST, payload)
-    last_used[BROADCAST] = time.ticks_ms()
-
-
-def process_legacy_uart_frame(data):
-    if not data or len(data) < 6:
-        return
-    addr = data[:6]
-    payload = data[6:]
-    if addr == BROADCAST:
-        process_broadcast_payload_split_or_flood(payload)
-        return
-    ensure_peer(addr)
-    esp.send(addr, payload)
-    last_used[addr] = time.ticks_ms()
-
-
-def handle_json_command_line(obj):
-    if not isinstance(obj, dict):
-        return
-    if try_apply_bridge_config(obj):
-        return
-    if obj.get("m") == "split" and isinstance(obj.get("peers"), list):
-        send_split_from_obj(obj)
-        return
-    to = obj.get("to") or obj.get("dest")
-    if isinstance(to, str) and len(to) == 12:
-        try:
-            mac = bytes.fromhex(to)
-        except ValueError:
-            return
-        if len(mac) != 6:
-            return
-        body = {k: v for k, v in obj.items() if k not in ("to", "dest")}
-        if not body:
-            return
-        try:
-            out = json.dumps(body).encode("utf-8")
-        except (TypeError, ValueError):
-            return
-        ensure_peer(mac)
-        esp.send(mac, out)
-        last_used[mac] = time.ticks_ms()
-
-
-def drain_uart_json_lines():
-    """Parse leading newline-delimited JSON objects from uart_rx_buf; leave rest."""
-    global uart_rx_buf
-    while True:
-        s = uart_rx_buf.lstrip()
-        if not s:
-            uart_rx_buf = b""
-            return
-        if s[0] != ord("{"):
-            uart_rx_buf = s
-            return
-        nl = s.find(b"\n")
-        if nl < 0:
-            uart_rx_buf = s
-            return
-        line = s[:nl].strip()
-        uart_rx_buf = s[nl + 1 :]
-        if line:
-            try:
-                text = line.decode("utf-8")
-                obj = json.loads(text)
-                handle_json_command_line(obj)
-            except Exception as e:
-                print("UART JSON line error:", e)
-        # continue; there may be another JSON line in buffer
-
-
-def drain_uart_legacy_frame():
-    """If buffer does not start with '{', treat whole buffer as one 6-byte MAC + JSON frame."""
-    global uart_rx_buf
-    s = uart_rx_buf
-    if not s or s[0] == ord("{"):
-        return
-    if len(s) < 6:
-        return
-    data = s
-    uart_rx_buf = b""
-    process_legacy_uart_frame(data)
-
-
-def forward_espnow_to_uart(mac, msg):
-    peer_hex = ubinascii.hexlify(mac).decode()
-    try:
-        text = msg.decode("utf-8")
-        try:
-            payload = json.loads(text)
-            line_obj = {"dir": "espnow_rx", "from": peer_hex, "payload": payload}
-        except ValueError:
-            line_obj = {"dir": "espnow_rx", "from": peer_hex, "payload_text": text}
-    except UnicodeDecodeError:
-        line_obj = {
-            "dir": "espnow_rx",
-            "from": peer_hex,
-            "payload_b64": ubinascii.b64encode(msg).decode(),
-        }
-    try:
-        line = json.dumps(line_obj) + "\n"
-        uart.write(line.encode("utf-8"))
-    except Exception as e:
-        print("UART TX error:", e)
-
-
-print("Starting ESP32 bridge (UART JSON + legacy MAC+JSON, ESP-NOW RX → UART JSON lines)")
-
-while True:
-    idle = True
-    if uart.any():
-        idle = False
-        uart_rx_buf += uart.read()
-        drain_uart_json_lines()
-        drain_uart_legacy_frame()
-
-    try:
-        peer, msg = esp.recv(0)
-    except OSError:
-        peer, msg = None, None
-
-    if peer is not None and msg is not None:
-        idle = False
-        if len(peer) == 6:
-            forward_espnow_to_uart(peer, msg)
-
-    if idle:
-        time.sleep_ms(1)
--- a/esp32/msg.json
+++ b/esp32/msg.json
@@ -1,21 +0,0 @@
-{
-    "ch": 6,
-    
-    "peers": {
-        "12:3456789012":{ 
-            "select": [["name1", "preset1"]]
-
-        ,
-        "ff:ff:ff:ff:ff:ff": {
-            "presets": {
-                "preset1": {
-                    "pattern": "on",
-                    "colors": ["#FF0000", "#00FF00", "#0000FF"],
-                    "delay": 100,
-                    "brightness": 127,
-                    "auto": true
-                }
-            }
-        }
-        }
-}
--- a/espnow-sender/README.md
+++ b/espnow-sender/README.md
@@ -0,0 +1,7 @@
+# espnow-sender
+
+Minimal MicroPython project for receiving JSON over Microdot WebSocket.
+
+- WebSocket endpoint: `/ws`
+- Entry point: `main.py`
+- Message template: `msg.json`
--- a/espnow-sender/main.py
+++ b/espnow-sender/main.py
@@ -0,0 +1,120 @@
+import asyncio
+import json
+
+from microdot import Microdot
+from microdot.websocket import WebSocketError, with_websocket
+
+import espnow
+import network
+from util import format_mac, parse_mac
+
+
+app = Microdot()
+_esp = None
+_known_peers = set()
+_ws_clients = set()
+
+
+def _init_espnow():
+    global _esp
+    sta = network.WLAN(network.STA_IF)
+    sta.active(True)
+    _esp = espnow.ESPNow()
+    _esp.active(True)
+
+
+def _validate_envelope(obj):
+    if obj.get("v") != "1":
+        raise ValueError("message.v must be '1'")
+    devices = obj["devices"]
+    for address in devices.keys():
+        parse_mac(address)
+    return obj
+
+
+def _send_espnow(address, payload):
+    if _esp is None:
+        raise ValueError("espnow is not initialized")
+    mac = parse_mac(address)
+    msg = json.dumps(payload, separators=(",", ":")).encode("utf-8")
+    if mac not in _known_peers:
+        _esp.add_peer(mac)
+        _known_peers.add(mac)
+    _esp.send(mac, msg)
+    return mac, len(msg)
+
+
+async def _broadcast_ws(obj):
+    text = json.dumps(obj)
+    dead = []
+    for client in list(_ws_clients):
+        try:
+            await client.send(text)
+        except Exception:
+            dead.append(client)
+    for client in dead:
+        _ws_clients.discard(client)
+
+
+async def _espnow_receive_loop():
+    while True:
+        host, msg = _esp.recv(0)
+        if not host:
+            await asyncio.sleep(0.01)
+            continue
+        await _broadcast_ws(
+            {
+                "from": format_mac(host),
+                "payload": msg.decode("utf-8"),
+            }
+        )
+
+
+@app.route("/ws")
+@with_websocket
+async def ws(request, ws):
+    _ws_clients.add(ws)
+    while True:
+        try:
+            raw = await ws.receive()
+        except WebSocketError:
+            break
+
+        if not raw:
+            break
+
+        try:
+            parsed = json.loads(raw)
+            env = _validate_envelope(parsed)
+            sent = []
+            for address, payload in env["devices"].items():
+                mac, payload_size = _send_espnow(address, payload)
+                sent.append(
+                    {
+                        "address": format_mac(mac),
+                        "bytes": payload_size,
+                    }
+                )
+        except (ValueError, TypeError) as e:
+            await ws.send(json.dumps({"ok": False, "error": str(e)}))
+            continue
+
+        await ws.send(
+            json.dumps(
+                {
+                    "ok": True,
+                    "sent": sent,
+                }
+            )
+        )
+    _ws_clients.discard(ws)
+
+
+async def main(port=80):
+    _init_espnow()
+    asyncio.create_task(_espnow_receive_loop())
+    await app.start_server(host="0.0.0.0", port=port)
+
+
+if __name__ == "__main__":
+    asyncio.run(main(port=80))
--- a/espnow-sender/msg.json
+++ b/espnow-sender/msg.json
@@ -0,0 +1,24 @@
+{
+    "v": "1",
+    "devices": {
+        "ff:ff:ff:ff:ff:ff": {
+            "presets": {
+                "preset_id": {
+                    "pattern": "on",
+                    "colors": ["#FF0000"],
+                    "delay": 100,
+                    "brightness": 255,
+                    "auto": true
+                }
+            }, 
+            "select": {
+                "preset": "preset_id",
+                "step": 0
+            }, 
+            "save": true, 
+            "default": "preset_id", 
+            "b": 255
+        }
+    }
+}
+    
--- a/espnow-sender/util.py
+++ b/espnow-sender/util.py
@@ -0,0 +1,12 @@
+def parse_mac(value):
+    raw = value.strip().lower().replace(":", "").replace("-", "")
+    if len(raw) != 12:
+        raise ValueError("address must be 12 hex chars or aa:bb:cc:dd:ee:ff")
+    try:
+        return bytes.fromhex(raw)
+    except ValueError:
+        raise ValueError("address contains non-hex characters")
+
+
+def format_mac(mac_bytes):
+    return ":".join("{:02x}".format(b) for b in mac_bytes)
--- a/2
+++ b/2
--- a/1
+++ b/1
--- a/2
+++ b/2
--- a/led_bar_vertical_stand.scad
+++ b/led_bar_vertical_stand.scad
@@ -0,0 +1,123 @@
+// Parametric LED bar vertical stand socket
+// For a bar nominally 14 x 17 mm, 2 m long.
+// This part is intended to be screwed to an MDF base.
+
+// -------------------------
+// User parameters
+// -------------------------
+bar_w = 14;                 // Bar width (mm)
+bar_d = 17;                 // Bar depth (mm)
+clearance = 0.4;            // Total clearance added to each axis (mm)
+
+socket_height = 36;         // Height of printed socket body (mm)
+wall = 3.2;                 // Socket wall thickness (mm)
+base_thickness = 5;         // Printed bottom plate thickness (mm)
+
+// USB cable/connector side opening
+usb_notch_enable = true;
+usb_notch_w = 11;
+usb_notch_h = 9;
+usb_notch_from_bottom = 6;
+usb_notch_side = "right";   // "right" or "left"
+
+// Mounting ears for MDF screws
+ear_enable = true;
+ear_len = 16;
+ear_w = 16;
+ear_thickness = base_thickness;
+screw_hole_d = 4.2;         // M4 clearance. Use 3.4 for M3.
+screw_hole_edge = 5.5;      // Hole center offset from ear outer corner
+
+// Optional clamp lip at top to reduce wobble
+top_lip_enable = true;
+top_lip_depth = 2.0;        // Intrudes into opening on each side
+top_lip_height = 3.0;
+
+$fn = 48;
+
+// -------------------------
+// Derived
+// -------------------------
+inner_w = bar_w + clearance;
+inner_d = bar_d + clearance;
+
+outer_w = inner_w + wall * 2;
+outer_d = inner_d + wall * 2;
+outer_h = socket_height;
+
+module screw_hole() {
+    cylinder(h = ear_thickness + 0.2, d = screw_hole_d);
+}
+
+module mounting_ear(sign_y = 1) {
+    translate([outer_w / 2, sign_y * (outer_d / 2), 0])
+    cube([ear_len, ear_w, ear_thickness], center = false);
+}
+
+module top_lip() {
+    if (top_lip_enable) {
+        // Front and back lips at the top of the socket.
+        translate([wall, wall, outer_h - top_lip_height])
+            cube([top_lip_depth, inner_d, top_lip_height]);
+
+        translate([outer_w - wall - top_lip_depth, wall, outer_h - top_lip_height])
+            cube([top_lip_depth, inner_d, top_lip_height]);
+    }
+}
+
+difference() {
+    union() {
+        // Main body
+        cube([outer_w, outer_d, outer_h], center = false);
+
+        // Base plate under socket for stiffness
+        translate([0, 0, -base_thickness])
+            cube([outer_w, outer_d, base_thickness], center = false);
+
+        // Mounting ears
+        if (ear_enable) {
+            translate([0, 0, -ear_thickness]) {
+                mounting_ear(1);
+                mounting_ear(-1);
+            }
+        }
+
+        top_lip();
+    }
+
+    // Main bar cavity
+    translate([wall, wall, 0])
+        cube([inner_w, inner_d, outer_h + 0.2], center = false);
+
+    // USB side notch
+    if (usb_notch_enable) {
+        if (usb_notch_side == "right") {
+            translate([outer_w - wall - 0.1, (outer_d - usb_notch_w) / 2, usb_notch_from_bottom])
+                cube([wall + 0.3, usb_notch_w, usb_notch_h], center = false);
+        } else {
+            translate([-0.2, (outer_d - usb_notch_w) / 2, usb_notch_from_bottom])
+                cube([wall + 0.3, usb_notch_w, usb_notch_h], center = false);
+        }
+    }
+
+    // Screw holes in ears
+    if (ear_enable) {
+        // Upper ear hole
+        translate([
+            outer_w / 2 + ear_len - screw_hole_edge,
+            outer_d / 2 + ear_w - screw_hole_edge,
+            -ear_thickness - 0.05
+        ]) screw_hole();
+
+        // Lower ear hole
+        translate([
+            outer_w / 2 + ear_len - screw_hole_edge,
+            -outer_d / 2 + screw_hole_edge,
+            -ear_thickness - 0.05
+        ]) screw_hole();
+    }
+}
+
+// Print orientation helper:
+// Keep the base/ears on the bed.
+// If fit is tight, increase clearance to 0.5 or 0.6.
--- a/patterns/init.py
+++ b/patterns/init.py
@@ -1,6 +0,0 @@
-from .blink import Blink
-from .rainbow import Rainbow
-from .pulse import Pulse
-from .transition import Transition
-from .chase import Chase
-from .circle import Circle
--- a/patterns/blink.py
+++ b/patterns/blink.py
@@ -1,33 +0,0 @@
-import utime
-
-
-class Blink:
-    def __init__(self, driver):
-        self.driver = driver
-
-    def run(self, preset):
-        """Blink pattern: toggles LEDs on/off using preset delay, cycling through colors."""
-        # Use provided colors, or default to white if none
-        colors = preset.c if preset.c else [(255, 255, 255)]
-        color_index = 0
-        state = True  # True = on, False = off
-        last_update = utime.ticks_ms()
-
-        while True:
-            current_time = utime.ticks_ms()
-            # Re-read delay each loop so live updates to preset.d take effect
-            delay_ms = max(1, int(preset.d))
-            if utime.ticks_diff(current_time, last_update) >= delay_ms:
-                if state:
-                    base_color = colors[color_index % len(colors)]
-                    color = self.driver.apply_brightness(base_color, preset.b)
-                    self.driver.fill(color)
-                    # Advance to next color for the next "on" phase
-                    color_index += 1
-                else:
-                    # "Off" phase: turn all LEDs off
-                    self.driver.fill((0, 0, 0))
-                state = not state
-                last_update = current_time
-            # Yield once per tick so other logic can run
-            yield
--- a/patterns/chase.py
+++ b/patterns/chase.py
@@ -1,124 +0,0 @@
-import utime
-
-
-class Chase:
-    def __init__(self, driver):
-        self.driver = driver
-
-    def run(self, preset):
-        """Chase pattern: n1 LEDs of color0, n2 LEDs of color1, repeating.
-        Moves by n3 on even steps, n4 on odd steps (n3/n4 can be positive or negative)"""
-        colors = preset.c
-        if len(colors) < 1:
-            # Need at least 1 color
-            return
-
-        # Access colors, delay, and n values from preset
-        if not colors:
-            return
-        # If only one color provided, use it for both colors
-        if len(colors) < 2:
-            color0 = colors[0]
-            color1 = colors[0]
-        else:
-            color0 = colors[0]
-            color1 = colors[1]
-
-        color0 = self.driver.apply_brightness(color0, preset.b)
-        color1 = self.driver.apply_brightness(color1, preset.b)
-
-        n1 = max(1, int(preset.n1))  # LEDs of color 0
-        n2 = max(1, int(preset.n2))  # LEDs of color 1
-        n3 = int(preset.n3)  # Step movement on even steps (can be negative)
-        n4 = int(preset.n4)  # Step movement on odd steps (can be negative)
-
-        segment_length = n1 + n2
-
-        # Calculate position from step_count
-        step_count = self.driver.step
-        # Position alternates: step 0 adds n3, step 1 adds n4, step 2 adds n3, etc.
-        if step_count % 2 == 0:
-            # Even steps: (step_count//2) pairs of (n3+n4) plus one extra n3
-            position = (step_count // 2) * (n3 + n4) + n3
-        else:
-            # Odd steps: ((step_count+1)//2) pairs of (n3+n4)
-            position = ((step_count + 1) // 2) * (n3 + n4)
-
-        # Wrap position to keep it reasonable
-        max_pos = self.driver.num_leds + segment_length
-        position = position % max_pos
-        if position < 0:
-            position += max_pos
-
-        # If auto is False, run a single step and then stop
-        if not preset.a:
-            # Clear all LEDs
-            self.driver.n.fill((0, 0, 0))
-
-            # Draw repeating pattern starting at position
-            for i in range(self.driver.num_leds):
-                # Calculate position in the repeating segment
-                relative_pos = (i - position) % segment_length
-                if relative_pos < 0:
-                    relative_pos = (relative_pos + segment_length) % segment_length
-
-                # Determine which color based on position in segment
-                if relative_pos < n1:
-                    self.driver.n[i] = color0
-                else:
-                    self.driver.n[i] = color1
-
-            self.driver.n.write()
-
-            # Increment step for next beat
-            self.driver.step = step_count + 1
-
-            # Allow tick() to advance the generator once
-            yield
-            return
-
-        # Auto mode: continuous loop
-        # Use transition_duration for timing and force the first update to happen immediately
-        transition_duration = max(10, int(preset.d))
-        last_update = utime.ticks_ms() - transition_duration
-
-        while True:
-            current_time = utime.ticks_ms()
-            if utime.ticks_diff(current_time, last_update) >= transition_duration:
-                # Calculate current position from step_count
-                if step_count % 2 == 0:
-                    position = (step_count // 2) * (n3 + n4) + n3
-                else:
-                    position = ((step_count + 1) // 2) * (n3 + n4)
-
-                # Wrap position
-                max_pos = self.driver.num_leds + segment_length
-                position = position % max_pos
-                if position < 0:
-                    position += max_pos
-
-                # Clear all LEDs
-                self.driver.n.fill((0, 0, 0))
-
-                # Draw repeating pattern starting at position
-                for i in range(self.driver.num_leds):
-                    # Calculate position in the repeating segment
-                    relative_pos = (i - position) % segment_length
-                    if relative_pos < 0:
-                        relative_pos = (relative_pos + segment_length) % segment_length
-
-                    # Determine which color based on position in segment
-                    if relative_pos < n1:
-                        self.driver.n[i] = color0
-                    else:
-                        self.driver.n[i] = color1
-
-                self.driver.n.write()
-
-                # Increment step
-                step_count += 1
-                self.driver.step = step_count
-                last_update = current_time
-
-            # Yield once per tick so other logic can run
-            yield
--- a/patterns/circle.py
+++ b/patterns/circle.py
@@ -1,96 +0,0 @@
-import utime
-
-
-class Circle:
-    def __init__(self, driver):
-        self.driver = driver
-
-    def run(self, preset):
-        """Circle loading pattern - grows to n2, then tail moves forward at n3 until min length n4"""
-        head = 0
-        tail = 0
-
-        # Calculate timing from preset
-        head_rate = max(1, int(preset.n1))  # n1 = head moves per second
-        tail_rate = max(1, int(preset.n3))  # n3 = tail moves per second
-        max_length = max(1, int(preset.n2))  # n2 = max length
-        min_length = max(0, int(preset.n4))  # n4 = min length
-
-        head_delay = 1000 // head_rate  # ms between head movements
-        tail_delay = 1000 // tail_rate  # ms between tail movements
-
-        last_head_move = utime.ticks_ms()
-        last_tail_move = utime.ticks_ms()
-
-        phase = "growing"  # "growing", "shrinking", or "off"
-
-        # Support up to two colors (like chase). If only one color is provided,
-        # use black for the second; if none, default to white.
-        colors = preset.c
-        if not colors:
-            base0 = base1 = (255, 255, 255)
-        elif len(colors) == 1:
-            base0 = colors[0]
-            base1 = (0, 0, 0)
-        else:
-            base0 = colors[0]
-            base1 = colors[1]
-
-        color0 = self.driver.apply_brightness(base0, preset.b)
-        color1 = self.driver.apply_brightness(base1, preset.b)
-
-        while True:
-            current_time = utime.ticks_ms()
-
-            # Background: use second color during the "off" phase, otherwise clear to black
-            if phase == "off":
-                self.driver.n.fill(color1)
-            else:
-                self.driver.n.fill((0, 0, 0))
-
-            # Calculate segment length
-            segment_length = (head - tail) % self.driver.num_leds
-            if segment_length == 0 and head != tail:
-                segment_length = self.driver.num_leds
-
-            # Draw segment from tail to head as a solid color (no per-LED alternation)
-            current_color = color0
-            for i in range(segment_length + 1):
-                led_pos = (tail + i) % self.driver.num_leds
-                self.driver.n[led_pos] = current_color
-
-            # Move head continuously at n1 LEDs per second
-            if utime.ticks_diff(current_time, last_head_move) >= head_delay:
-                head = (head + 1) % self.driver.num_leds
-                last_head_move = current_time
-
-            # Tail behavior based on phase
-            if phase == "growing":
-                # Growing phase: tail stays at 0 until max length reached
-                if segment_length >= max_length:
-                    phase = "shrinking"
-            elif phase == "shrinking":
-                # Shrinking phase: move tail forward at n3 LEDs per second
-                if utime.ticks_diff(current_time, last_tail_move) >= tail_delay:
-                    tail = (tail + 1) % self.driver.num_leds
-                    last_tail_move = current_time
-
-                    # Check if we've reached min length
-                    current_length = (head - tail) % self.driver.num_leds
-                    if current_length == 0 and head != tail:
-                        current_length = self.driver.num_leds
-
-                    # For min_length = 0, we need at least 1 LED (the head)
-                    if min_length == 0 and current_length <= 1:
-                        phase = "off"  # All LEDs off for 1 step
-                    elif min_length > 0 and current_length <= min_length:
-                        phase = "growing"  # Cycle repeats
-            else:  # phase == "off"
-                # Off phase: second color fills the ring for 1 step, then restart
-                tail = head  # Reset tail to head position to start fresh
-                phase = "growing"
-
-            self.driver.n.write()
-
-            # Yield once per tick so other logic can run
-            yield
--- a/patterns/pulse.py
+++ b/patterns/pulse.py
@@ -1,64 +0,0 @@
-import utime
-
-
-class Pulse:
-    def __init__(self, driver):
-        self.driver = driver
-
-    def run(self, preset):
-        self.driver.off()
-
-        # Get colors from preset
-        colors = preset.c
-        if not colors:
-            colors = [(255, 255, 255)]
-
-        color_index = 0
-        cycle_start = utime.ticks_ms()
-
-        # State machine based pulse using a single generator loop
-        while True:
-            # Read current timing parameters from preset
-            attack_ms = max(0, int(preset.n1))  # Attack time in ms
-            hold_ms = max(0, int(preset.n2))    # Hold time in ms
-            decay_ms = max(0, int(preset.n3))   # Decay time in ms
-            delay_ms = max(0, int(preset.d))
-
-            total_ms = attack_ms + hold_ms + decay_ms + delay_ms
-            if total_ms <= 0:
-                total_ms = 1
-
-            now = utime.ticks_ms()
-            elapsed = utime.ticks_diff(now, cycle_start)
-
-            base_color = colors[color_index % len(colors)]
-
-            if elapsed < attack_ms and attack_ms > 0:
-                # Attack: fade 0 -> 1
-                factor = elapsed / attack_ms
-                color = tuple(int(c * factor) for c in base_color)
-                self.driver.fill(self.driver.apply_brightness(color, preset.b))
-            elif elapsed < attack_ms + hold_ms:
-                # Hold: full brightness
-                self.driver.fill(self.driver.apply_brightness(base_color, preset.b))
-            elif elapsed < attack_ms + hold_ms + decay_ms and decay_ms > 0:
-                # Decay: fade 1 -> 0
-                dec_elapsed = elapsed - attack_ms - hold_ms
-                factor = max(0.0, 1.0 - (dec_elapsed / decay_ms))
-                color = tuple(int(c * factor) for c in base_color)
-                self.driver.fill(self.driver.apply_brightness(color, preset.b))
-            elif elapsed < total_ms:
-                # Delay phase: LEDs off between pulses
-                self.driver.fill((0, 0, 0))
-            else:
-                # End of cycle, move to next color and restart timing
-                color_index += 1
-                cycle_start = now
-                if not preset.a:
-                    break
-                # Skip drawing this tick, start next cycle
-                yield
-                continue
-
-            # Yield once per tick
-            yield
--- a/patterns/rainbow.py
+++ b/patterns/rainbow.py
@@ -1,51 +0,0 @@
-import utime
-
-
-class Rainbow:
-    def __init__(self, driver):
-        self.driver = driver
-
-    def _wheel(self, pos):
-        if pos < 85:
-            return (pos * 3, 255 - pos * 3, 0)
-        elif pos < 170:
-            pos -= 85
-            return (255 - pos * 3, 0, pos * 3)
-        else:
-            pos -= 170
-            return (0, pos * 3, 255 - pos * 3)
-
-    def run(self, preset):
-        step = self.driver.step % 256
-        step_amount = max(1, int(preset.n1))  # n1 controls step increment
-
-        # If auto is False, run a single step and then stop
-        if not preset.a:
-            for i in range(self.driver.num_leds):
-                rc_index = (i * 256 // self.driver.num_leds) + step
-                self.driver.n[i] = self.driver.apply_brightness(self._wheel(rc_index & 255), preset.b)
-            self.driver.n.write()
-            # Increment step by n1 for next manual call
-            self.driver.step = (step + step_amount) % 256
-            # Allow tick() to advance the generator once
-            yield
-            return
-
-        last_update = utime.ticks_ms()
-
-        while True:
-            current_time = utime.ticks_ms()
-            sleep_ms = max(1, int(preset.d))  # Get delay from preset
-            if utime.ticks_diff(current_time, last_update) >= sleep_ms:
-                for i in range(self.driver.num_leds):
-                    rc_index = (i * 256 // self.driver.num_leds) + step
-                    self.driver.n[i] = self.driver.apply_brightness(
-                        self._wheel(rc_index & 255),
-                        preset.b,
-                    )
-                self.driver.n.write()
-                step = (step + step_amount) % 256
-                self.driver.step = step
-                last_update = current_time
-            # Yield once per tick so other logic can run
-            yield
--- a/patterns/transition.py
+++ b/patterns/transition.py
@@ -1,57 +0,0 @@
-import utime
-
-
-class Transition:
-    def __init__(self, driver):
-        self.driver = driver
-
-    def run(self, preset):
-        """Transition between colors, blending over `delay` ms."""
-        colors = preset.c
-        if not colors:
-            self.driver.off()
-            yield
-            return
-
-        # Only one color: just keep it on
-        if len(colors) == 1:
-            while True:
-                self.driver.fill(self.driver.apply_brightness(colors[0], preset.b))
-                yield
-            return
-
-        color_index = 0
-        start_time = utime.ticks_ms()
-
-        while True:
-            if not colors:
-                break
-
-            # Get current and next color based on live list
-            c1 = colors[color_index % len(colors)]
-            c2 = colors[(color_index + 1) % len(colors)]
-
-            duration = max(10, int(preset.d))  # At least 10ms
-            now = utime.ticks_ms()
-            elapsed = utime.ticks_diff(now, start_time)
-
-            if elapsed >= duration:
-                # End of this transition step
-                if not preset.a:
-                    # One-shot: transition from first to second color only
-                    self.driver.fill(self.driver.apply_brightness(c2, preset.b))
-                    break
-                # Auto: move to next pair
-                color_index = (color_index + 1) % len(colors)
-                start_time = now
-                yield
-                continue
-
-            # Interpolate between c1 and c2
-            factor = elapsed / duration
-            interpolated = tuple(
-                int(c1[i] + (c2[i] - c1[i]) * factor) for i in range(3)
-            )
-            self.driver.fill(self.driver.apply_brightness(interpolated, preset.b))
-
-            yield
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_endpoints_pytest.py"]
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,4 +0,0 @@
-[pytest]
-testpaths = tests
-python_files = test_endpoints_pytest.py
-
--- a/scripts/cp-esp32-main.sh
+++ b/scripts/cp-esp32-main.sh
@@ -1,4 +0,0 @@
-#!/usr/bin/env bash
-# Copy esp32/main.py to the connected ESP32 as /main.py (single line, no wrap).
-cd "$(dirname "$0")/.."
-pipenv run mpremote fs cp esp32/main.py :/main.py
--- a/scripts/dev-run.sh
+++ b/scripts/dev-run.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+PORT="${PORT:-80}"
+
+# On watchfiles restarts the previous process can linger briefly.
+# Proactively terminate any listener on the target port before boot.
+pids="$(ss -ltnp "sport = :$PORT" 2>/dev/null | sed -n 's/.*pid=\([0-9]\+\).*/\1/p' | sort -u)"
+if [ -n "${pids}" ]; then
+  kill -TERM ${pids} 2>/dev/null || true
+  sleep 0.3
+fi
+
+cd "$ROOT_DIR/src"
+exec python main.py
--- a/scripts/install-boot-service.sh
+++ b/scripts/install-boot-service.sh
@@ -10,6 +10,18 @@ if [ ! -f "scripts/led-controller.service" ]; then
  echo "Run this script from the repo root."
  exit 1
 fi
+export PIPENV_VENV_IN_PROJECT="${PIPENV_VENV_IN_PROJECT:-1}"
+if command -v pipenv >/dev/null 2>&1; then
+  PY="$(command -v python3)"
+  if [ -z "$PY" ]; then
+    echo "python3 not found; install python3." >&2
+    exit 1
+  fi
+  echo "Ensuring Pipenv deps with $PY (venv in project: .venv when PIPENV_VENV_IN_PROJECT=1)…"
+  # --skip-lock: install from Pipfile only (avoids lock/Python hash mismatches on device).
+  pipenv install --quiet --skip-lock --python "$PY"
+  pipenv --venv > scripts/.led-controller-venv
+fi
 chmod +x scripts/start.sh
 sudo cp "scripts/led-controller.service" "$UNIT_PATH"
 sudo systemctl daemon-reload
--- a/scripts/led-controller.service
+++ b/scripts/led-controller.service
@@ -1,7 +1,8 @@
 [Unit]
 Description=LED Controller web server
-After=network-online.target
-Wants=network-online.target
+# Use network.target only. Ordering after network-online.target can block `systemctl start`
+# until wait-online finishes; Wi‑Fi/DHCP delays then look like a hung start job.
+After=network.target

 [Service]
 Type=simple
@@ -12,6 +13,8 @@ Environment=PATH=/home/pi/.local/bin:/usr/local/bin:/usr/bin:/bin
 ExecStart=/bin/bash /home/pi/led-controller/scripts/start.sh
 Restart=on-failure
 RestartSec=5
+# pipenv/first bind can be slow; avoid misleading "activating" forever if misconfigured
+TimeoutStartSec=120

 [Install]
 WantedBy=multi-user.target
--- a/scripts/pi-eth-lan-router.sh
+++ b/scripts/pi-eth-lan-router.sh
@@ -0,0 +1,253 @@
+#!/usr/bin/env bash
+# Configure Raspberry Pi OS: Wi-Fi client on IF_WAN (default wlan0), Ethernet IF_LAN
+# (default eth0) toward an external AP. Static LAN IP, DHCP via dnsmasq, NAT masquerade.
+#
+# Usage:
+#   sudo ./pi-eth-lan-router.sh install
+#   sudo ./pi-eth-lan-router.sh remove
+#
+# Environment overrides (optional):
+#   IF_WAN=wlan0 IF_LAN=eth0 LAN_IP=192.168.4.1 LAN_PREFIX=24 \
+#   DHCP_START=192.168.4.100 DHCP_END=192.168.4.200 \
+#   DNSMASQ_DNS=1.1.1.1,8.8.8.8 \
+#   sudo ./pi-eth-lan-router.sh install
+
+set -euo pipefail
+
+IF_WAN="${IF_WAN:-wlan0}"
+IF_LAN="${IF_LAN:-eth0}"
+LAN_IP="${LAN_IP:-192.168.4.1}"
+LAN_PREFIX="${LAN_PREFIX:-24}"
+DHCP_START="${DHCP_START:-192.168.4.100}"
+DHCP_END="${DHCP_END:-192.168.4.200}"
+# Comma-separated DNS for DHCP clients (Pi does not need to run a resolver).
+DNSMASQ_DNS="${DNSMASQ_DNS:-1.1.1.1,8.8.8.8}"
+
+NM_CON_NAME="pi-eth-lan-router"
+MARK_BEGIN="# BEGIN pi-eth-lan-router (scripts/pi-eth-lan-router.sh)"
+MARK_END="# END pi-eth-lan-router"
+SYSCTL_FILE="/etc/sysctl.d/99-pi-eth-lan-router.conf"
+DNSMASQ_SNIPPET="/etc/dnsmasq.d/pi-eth-lan-router.conf"
+NFT_SNIPPET="/etc/nftables.d/50-pi-eth-lan-router.nft"
+NFT_INCLUDE='include "/etc/nftables.d/50-pi-eth-lan-router.nft"'
+NFTABLES_CONF="/etc/nftables.conf"
+DHCPCD_CONF="/etc/dhcpcd.conf"
+
+die() { echo "error: $*" >&2; exit 1; }
+log() { echo "$*"; }
+
+need_root() {
+  [[ "${EUID:-0}" -eq 0 ]] || die "run as root (sudo)"
+}
+
+have_cmd() { command -v "$1" >/dev/null 2>&1; }
+
+apt_install() {
+  export DEBIAN_FRONTEND=noninteractive
+  apt-get update -qq
+  apt-get install -y -qq dnsmasq nftables
+}
+
+write_sysctl() {
+  cat >"$SYSCTL_FILE" <<EOF
+# Managed by scripts/pi-eth-lan-router.sh
+net.ipv4.ip_forward=1
+EOF
+  sysctl --system -q 2>/dev/null || sysctl -p "$SYSCTL_FILE" || true
+}
+
+remove_sysctl() {
+  rm -f "$SYSCTL_FILE"
+  sysctl --system -q 2>/dev/null || true
+}
+
+write_dnsmasq() {
+  local mask="255.255.255.0"
+  if [[ "$LAN_PREFIX" != "24" ]]; then
+    die "only LAN_PREFIX=24 is supported by this script (extend dnsmasq netmask manually)"
+  fi
+  cat >"$DNSMASQ_SNIPPET" <<EOF
+# Managed by scripts/pi-eth-lan-router.sh
+interface=$IF_LAN
+bind-interfaces
+dhcp-range=$DHCP_START,$DHCP_END,$mask,24h
+dhcp-option=option:router,$LAN_IP
+dhcp-option=option:dns-server,$DNSMASQ_DNS
+EOF
+}
+
+remove_dnsmasq() {
+  rm -f "$DNSMASQ_SNIPPET"
+}
+
+write_nft() {
+  mkdir -p /etc/nftables.d
+  cat >"$NFT_SNIPPET" <<EOF
+# Managed by scripts/pi-eth-lan-router.sh
+table ip pi_eth_wlan_nat {
+	chain postrouting {
+		type nat hook postrouting priority 100; policy accept;
+		oifname "$IF_WAN" masquerade
+	}
+}
+EOF
+  if [[ -f "$NFTABLES_CONF" ]] && ! grep -qF '50-pi-eth-lan-router.nft' "$NFTABLES_CONF" 2>/dev/null; then
+    printf '\n# pi-eth-lan-router\n%s\n' "$NFT_INCLUDE" >>"$NFTABLES_CONF"
+  elif [[ ! -f "$NFTABLES_CONF" ]]; then
+    log "warning: $NFTABLES_CONF missing; NAT was not added for boot persistence. Install/configure nftables, or add: $NFT_INCLUDE"
+  fi
+}
+
+remove_nft() {
+  rm -f "$NFT_SNIPPET"
+  if [[ -f "$NFTABLES_CONF" ]]; then
+    sed -i '/# pi-eth-lan-router/d;/50-pi-eth-lan-router\.nft/d' "$NFTABLES_CONF" || true
+  fi
+  nft delete table ip pi_eth_wlan_nat 2>/dev/null || true
+}
+
+apply_nft() {
+  if have_cmd nft; then
+    nft delete table ip pi_eth_wlan_nat 2>/dev/null || true
+    nft -f "$NFT_SNIPPET"
+  fi
+}
+
+configure_nm_eth() {
+  have_cmd nmcli || return 1
+  systemctl is-active --quiet NetworkManager 2>/dev/null || return 1
+
+  if nmcli -t -f NAME con show --active 2>/dev/null | grep -qxF "$NM_CON_NAME"; then
+    nmcli con down "$NM_CON_NAME" || true
+  fi
+  if nmcli -t -f NAME con show 2>/dev/null | grep -qxF "$NM_CON_NAME"; then
+    nmcli con mod "$NM_CON_NAME" \
+      connection.interface-name "$IF_LAN" \
+      ipv4.method manual \
+      ipv4.addresses "${LAN_IP}/${LAN_PREFIX}" \
+      ipv4.gateway "" \
+      ipv4.dns "" \
+      ipv4.never-default yes \
+      ipv6.method ignore
+  else
+    nmcli con add type ethernet con-name "$NM_CON_NAME" ifname "$IF_LAN" \
+      ipv4.method manual \
+      ipv4.addresses "${LAN_IP}/${LAN_PREFIX}" \
+      ipv4.gateway "" \
+      ipv4.dns "" \
+      ipv4.never-default yes \
+      ipv6.method ignore
+  fi
+  if ! nmcli con up "$NM_CON_NAME"; then
+    log "warning: could not activate '$NM_CON_NAME' (is $IF_LAN connected?); profile saved for next boot."
+  fi
+  return 0
+}
+
+remove_nm_eth() {
+  have_cmd nmcli || return 0
+  if nmcli -t -f NAME con show 2>/dev/null | grep -qxF "$NM_CON_NAME"; then
+    nmcli con delete "$NM_CON_NAME" || true
+  fi
+}
+
+configure_dhcpcd_eth() {
+  [[ -f "$DHCPCD_CONF" ]] || return 1
+  if grep -qF "$MARK_BEGIN" "$DHCPCD_CONF" 2>/dev/null; then
+    sed -i "/$MARK_BEGIN/,/$MARK_END/d" "$DHCPCD_CONF" || true
+  fi
+  {
+    echo "$MARK_BEGIN"
+    echo "interface $IF_LAN"
+    echo "static ip_address=${LAN_IP}/${LAN_PREFIX}"
+    echo "nohook wpa_supplicant"
+    echo "$MARK_END"
+  } >>"$DHCPCD_CONF"
+  systemctl restart dhcpcd 2>/dev/null || true
+  return 0
+}
+
+remove_dhcpcd_block() {
+  [[ -f "$DHCPCD_CONF" ]] || return 0
+  if grep -qF "$MARK_BEGIN" "$DHCPCD_CONF" 2>/dev/null; then
+    sed -i "/$MARK_BEGIN/,/$MARK_END/d" "$DHCPCD_CONF" || true
+    systemctl restart dhcpcd 2>/dev/null || true
+  fi
+}
+
+configure_eth_static() {
+  if configure_nm_eth; then
+    log "configured $IF_LAN via NetworkManager profile '$NM_CON_NAME'"
+    return 0
+  fi
+  if configure_dhcpcd_eth; then
+    log "configured $IF_LAN via dhcpcd ($DHCPCD_CONF)"
+    return 0
+  fi
+  die "neither NetworkManager (active) nor $DHCPCD_CONF found; set $IF_LAN to ${LAN_IP}/${LAN_PREFIX} manually"
+}
+
+remove_eth_static() {
+  remove_nm_eth
+  remove_dhcpcd_block
+}
+
+do_install() {
+  need_root
+  log "installing packages (dnsmasq, nftables)…"
+  apt_install
+
+  log "writing sysctl, dnsmasq, nftables snippets…"
+  write_sysctl
+  write_dnsmasq
+  write_nft
+
+  log "setting static IP on $IF_LAN…"
+  configure_eth_static
+
+  log "restarting dnsmasq…"
+  systemctl enable dnsmasq
+  systemctl restart dnsmasq
+
+  log "loading NAT rules and enabling nftables…"
+  apply_nft
+  systemctl enable nftables 2>/dev/null || true
+  systemctl restart nftables 2>/dev/null || true
+
+  log "done. Connect $IF_LAN to the external AP (DHCP off on the AP)."
+  log "Join Wi-Fi on $IF_WAN to the uplink network and complete any captive portal on the Pi."
+}
+
+do_remove() {
+  need_root
+  remove_eth_static
+  remove_dnsmasq
+  systemctl restart dnsmasq 2>/dev/null || true
+
+  remove_nft
+  systemctl restart nftables 2>/dev/null || true
+
+  remove_sysctl
+  sysctl -w net.ipv4.ip_forward=0 2>/dev/null || true
+
+  log "removed pi-eth-lan-router configuration snippets and NM profile '$NM_CON_NAME' (if present)."
+}
+
+usage() {
+  cat <<EOF
+Usage: sudo $0 install|remove
+
+WAN (Wi-Fi client): $IF_WAN
+LAN (Ethernet to AP): $IF_LAN
+LAN address: ${LAN_IP}/${LAN_PREFIX}
+DHCP range: $DHCP_START – $DHCP_END
+
+Override with environment variables (see script header).
+EOF
+}
+
+case "${1:-}" in
+  install) do_install ;;
+  remove) do_remove ;;
+  *) usage; exit 1 ;;
+esac
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -1,5 +1,38 @@
 #!/usr/bin/env bash
 # Start the LED controller web server (port 80 by default).
-cd "$(dirname "$0")/.."
+# Avoid `pipenv run` on the hot path — it re-resolves the env every time and is slow on a Pi.
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$ROOT"
 export PORT="${PORT:-80}"
-pipenv run run
+export PIPENV_VENV_IN_PROJECT="${PIPENV_VENV_IN_PROJECT:-1}"
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+CACHE="$SCRIPT_DIR/.led-controller-venv"
+PYTHON=""
+
+if [ -x "$ROOT/.venv/bin/python" ]; then
+  PYTHON="$ROOT/.venv/bin/python"
+elif [ -f "$CACHE" ]; then
+  _v="$(tr -d '\r\n' < "$CACHE")"
+  if [ -n "$_v" ] && [ -x "$_v/bin/python" ]; then
+    PYTHON="$_v/bin/python"
+  fi
+fi
+
+if [ -z "$PYTHON" ] && command -v pipenv >/dev/null 2>&1; then
+  _v="$(cd "$ROOT" && pipenv --venv 2>/dev/null || true)"
+  if [ -n "${_v:-}" ] && [ -x "$_v/bin/python" ]; then
+    PYTHON="$_v/bin/python"
+    printf '%s\n' "$_v" > "$CACHE" || true
+  fi
+fi
+
+if [ -z "$PYTHON" ]; then
+  echo 'led-controller: no venv resolved; using pipenv run (slow). Run: cd '"$ROOT"' && PIPENV_VENV_IN_PROJECT=1 pipenv install --skip-lock --python "$(command -v python3)"' >&2
+  exec pipenv run run
+fi
+
+cd "$ROOT/src"
+exec "$PYTHON" -u main.py
--- a/src/controllers/device.py
+++ b/src/controllers/device.py
@@ -6,15 +6,18 @@ from models.device import (
    validate_device_type,
 )
 from models.transport import get_current_sender
-from models.tcp_clients import (
+from models.wifi_ws_clients import (
    normalize_tcp_peer_ip,
    send_json_line_to_ip,
    tcp_client_connected,
 )
+from util.driver_patterns import driver_patterns_dir
 from util.espnow_message import build_message
 import asyncio
 import json
 import os
+import socket
+from urllib.parse import quote

 # Ephemeral driver preset name (never written to Pi preset store; ``save`` not set on wire).
 _IDENTIFY_PRESET_KEY = "__identify"
@@ -55,8 +58,8 @@ devices = Device()

 def _device_live_connected(dev_dict):
    """
-    Wi-Fi: whether a TCP client is registered for this device's address (IP).
-    ESP-NOW: None (no TCP session on the Pi for that transport).
+    Wi-Fi: whether the controller has an outbound WebSocket to this device's IP.
+    ESP-NOW: None (no Wi-Fi session on the Pi for that transport).
    """
    tr = (dev_dict.get("transport") or "espnow").strip().lower()
    if tr != "wifi":
@@ -73,11 +76,6 @@ def _device_json_with_live_status(dev_dict):
    return row


-def _driver_patterns_dir():
-    here = os.path.dirname(__file__)
-    return os.path.abspath(os.path.join(here, "../../led-driver/src/patterns"))
-
-
 def _safe_pattern_filename(name):
    if not isinstance(name, str):
        return False
@@ -88,20 +86,49 @@ def _safe_pattern_filename(name):
    return True


-def _build_patterns_manifest(host):
-    base_dir = _driver_patterns_dir()
-    names = sorted(os.listdir(base_dir))
-    files = []
-    for name in names:
-        if not _safe_pattern_filename(name) or name == "__init__.py":
-            continue
-        files.append(
-            {
-                "name": name,
-                "url": "http://%s/patterns/ota/file/%s" % (host, name),
-            }
-        )
-    return {"files": files}
+def _http_post_pattern_source(ip, filename, code_text, reload_patterns=True, timeout_s=10.0):
+    """POST source to driver /patterns/upload?name=...&reload=...; return True on 2xx."""
+    if not isinstance(ip, str) or not ip.strip():
+        return False
+    if not isinstance(filename, str) or not filename:
+        return False
+    if not isinstance(code_text, str):
+        return False
+
+    name_q = quote(filename, safe="")
+    reload_q = "1" if reload_patterns else "0"
+    path = "/patterns/upload?name=%s&reload=%s" % (name_q, reload_q)
+    body = code_text.encode("utf-8")
+    req = (
+        "POST %s HTTP/1.1\r\n"
+        "Host: %s\r\n"
+        "Content-Type: text/plain; charset=utf-8\r\n"
+        "Content-Length: %d\r\n"
+        "Connection: close\r\n"
+        "\r\n" % (path, ip, len(body))
+    ).encode("utf-8") + body
+
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    try:
+        sock.settimeout(timeout_s)
+        sock.connect((ip.strip(), 80))
+        sock.sendall(req)
+        data = b""
+        while True:
+            chunk = sock.recv(1024)
+            if not chunk:
+                break
+            data += chunk
+    except OSError:
+        return False
+    finally:
+        try:
+            sock.close()
+        except Exception:
+            pass
+
+    first_line = data.split(b"\r\n", 1)[0] if data else b""
+    return b" 2" in first_line


 async def _identify_send_off_after_delay(sender, transport, wifi_ip, dev_id, name):
@@ -118,7 +145,7 @@ async def _identify_send_off_after_delay(sender, transport, wifi_ip, dev_id, nam

@controller.get("")
 async def list_devices(request):
-    """List all devices (includes ``connected`` for live Wi-Fi TCP presence)."""
+    """List all devices (includes ``connected`` for live Wi-Fi WebSocket presence)."""
    devices_data = {}
    for dev_id in devices.list():
        d = devices.read(dev_id)
@@ -129,7 +156,7 @@ async def list_devices(request):

@controller.get("/<id>")
 async def get_device(request, id):
-    """Get a device by ID (includes ``connected`` for live Wi-Fi TCP presence)."""
+    """Get a device by ID (includes ``connected`` for live Wi-Fi WebSocket presence)."""
    dev = devices.read(id)
    if dev:
        return json.dumps(_device_json_with_live_status(dev)), 200, {
@@ -296,10 +323,7 @@ async def identify_device(request, id):
@controller.post("/<id>/patterns/push")
 async def push_patterns_ota(request, id):
    """
-    Ask a Wi-Fi LED driver to pull pattern files from this server over HTTP.
-
-    Body (optional):
-      {"manifest": "http://host:port/patterns/ota/manifest"}
+    Push all local pattern files directly to a Wi-Fi LED driver over HTTP upload.
    """
    dev = devices.read(id)
    if not dev:
@@ -316,31 +340,54 @@ async def push_patterns_ota(request, id):
            "Content-Type": "application/json",
        }

-    body = request.json or {}
-    manifest_payload = body.get("manifest")
-    if manifest_payload is None:
-        host = request.headers.get("Host", "")
-        if not host:
-            return json.dumps({"error": "Missing Host header"}), 400, {
-                "Content-Type": "application/json",
-            }
-        try:
-            manifest_payload = _build_patterns_manifest(host)
-        except OSError as e:
-            return json.dumps({"error": str(e)}), 500, {
-                "Content-Type": "application/json",
-            }
-    if not isinstance(manifest_payload, (str, dict)):
-        return json.dumps({"error": "manifest must be a URL string or manifest object"}), 400, {
+    base_dir = driver_patterns_dir()
+    try:
+        names = sorted(os.listdir(base_dir))
+    except OSError as e:
+        return json.dumps({"error": str(e)}), 500, {
            "Content-Type": "application/json",
        }

-    msg = json.dumps({"v": "1", "manifest": manifest_payload}, separators=(",", ":"))
-    ok = await send_json_line_to_ip(wifi_ip, msg)
-    if not ok:
-        return json.dumps({"error": "Wi-Fi driver not connected"}), 503, {
+    files = [n for n in names if _safe_pattern_filename(n) and n != "__init__.py"]
+    if not files:
+        return json.dumps({"error": "No pattern files found"}), 404, {
            "Content-Type": "application/json",
        }
-    return json.dumps({"message": "Pattern OTA trigger sent", "manifest": manifest_payload}), 200, {
+
+    sent = []
+    failed = []
+    total = len(files)
+    for idx, filename in enumerate(files):
+        path = os.path.join(base_dir, filename)
+        try:
+            with open(path, "r") as f:
+                code = f.read()
+        except OSError:
+            failed.append(filename)
+            continue
+        reload_patterns = idx == (total - 1)
+        ok = _http_post_pattern_source(
+            wifi_ip,
+            filename,
+            code,
+            reload_patterns=reload_patterns,
+            timeout_s=10.0,
+        )
+        if ok:
+            sent.append(filename)
+        else:
+            failed.append(filename)
+
+    if not sent:
+        return json.dumps({"error": "Wi-Fi driver did not accept pattern uploads", "failed": failed}), 503, {
+            "Content-Type": "application/json",
+        }
+
+    return json.dumps({
+        "message": "Pattern files uploaded",
+        "sent_count": len(sent),
+        "sent": sent,
+        "failed": failed,
+    }), 200, {
        "Content-Type": "application/json",
    }
--- a/src/controllers/led_tool.py
+++ b/src/controllers/led_tool.py
@@ -0,0 +1,189 @@
+import json
+import os
+import subprocess
+import sys
+
+from microdot import Microdot
+from serial.tools import list_ports
+
+controller = Microdot()
+
+
+def _repo_root() -> str:
+    return os.path.abspath(os.path.join(os.path.dirname(__file__), "..", ".."))
+
+
+def _led_cli_path() -> str:
+    return os.path.join(_repo_root(), "led-tool", "cli.py")
+
+
+def _build_led_cli_command(port: str, payload: dict):
+    cmd = [sys.executable, _led_cli_path(), "--port", port]
+
+    flag_map = (
+        ("name", "--name"),
+        ("led_pin", "--pin"),
+        ("num_leds", "--leds"),
+        ("brightness", "--brightness"),
+        ("transport", "--transport"),
+        ("ssid", "--ssid"),
+        ("password", "--wifi-password"),
+        ("wifi_channel", "--wifi-channel"),
+        ("default", "--default"),
+    )
+
+    for key, flag in flag_map:
+        value = payload.get(key)
+        if value is None:
+            continue
+        value_str = str(value).strip()
+        if value_str == "":
+            continue
+        cmd.extend([flag, value_str])
+
+    return cmd
+
+
+def _run_led_cli_command(cmd, cli_path: str, timeout_s=180):
+    try:
+        result = subprocess.run(
+            cmd,
+            capture_output=True,
+            text=True,
+            timeout=timeout_s,
+            cwd=os.path.dirname(cli_path),
+        )
+    except subprocess.TimeoutExpired:
+        return (
+            json.dumps({"error": "led-tool command timed out after 180 seconds"}),
+            504,
+            {"Content-Type": "application/json"},
+        )
+    except Exception as exc:
+        return (
+            json.dumps({"error": str(exc)}),
+            500,
+            {"Content-Type": "application/json"},
+        )
+
+    return (
+        json.dumps(
+            {
+                "ok": result.returncode == 0,
+                "returncode": result.returncode,
+                "stdout": result.stdout,
+                "stderr": result.stderr,
+                "command": cmd,
+            }
+        ),
+        200,
+        {"Content-Type": "application/json"},
+    )
+
+
+def _extract_settings_from_stdout(stdout: str):
+    text = (stdout or "").strip()
+    if not text:
+        return None
+    try:
+        parsed = json.loads(text)
+        return parsed if isinstance(parsed, dict) else None
+    except Exception:
+        return None
+
+
+@controller.get("/ports")
+async def list_serial_ports(request):
+    ports = []
+    for info in list_ports.comports():
+        ports.append(
+            {
+                "device": info.device,
+                "description": info.description,
+                "hwid": info.hwid,
+            }
+        )
+    return (
+        json.dumps(
+            {
+                "ports": ports,
+                "led_cli_exists": os.path.exists(_led_cli_path()),
+            }
+        ),
+        200,
+        {"Content-Type": "application/json"},
+    )
+
+
+@controller.post("/settings")
+async def apply_settings(request):
+    data = request.json or {}
+    port = str(data.get("port") or "").strip()
+    if not port:
+        return (
+            json.dumps({"error": "port is required"}),
+            400,
+            {"Content-Type": "application/json"},
+        )
+
+    cli_path = _led_cli_path()
+    if not os.path.exists(cli_path):
+        return (
+            json.dumps({"error": "led-tool/cli.py not found"}),
+            500,
+            {"Content-Type": "application/json"},
+        )
+
+    cmd = _build_led_cli_command(port, data) + ["--follow"]
+    return _run_led_cli_command(cmd, cli_path, timeout_s=None)
+
+
+@controller.post("/reset")
+@controller.post("/reset/")
+async def reset_device(request):
+    data = request.json or {}
+    port = str(data.get("port") or "").strip()
+    if not port:
+        return (
+            json.dumps({"error": "port is required"}),
+            400,
+            {"Content-Type": "application/json"},
+        )
+
+    cli_path = _led_cli_path()
+    if not os.path.exists(cli_path):
+        return (
+            json.dumps({"error": "led-tool/cli.py not found"}),
+            500,
+            {"Content-Type": "application/json"},
+        )
+
+    cmd = [sys.executable, cli_path, "--port", port, "--reset", "--follow"]
+    return _run_led_cli_command(cmd, cli_path, timeout_s=None)
+
+
+@controller.get("/settings")
+async def read_settings(request):
+    port = str(request.args.get("port") or "").strip()
+    if not port:
+        return (
+            json.dumps({"error": "port is required"}),
+            400,
+            {"Content-Type": "application/json"},
+        )
+
+    cli_path = _led_cli_path()
+    if not os.path.exists(cli_path):
+        return (
+            json.dumps({"error": "led-tool/cli.py not found"}),
+            500,
+            {"Content-Type": "application/json"},
+        )
+
+    cmd = [sys.executable, cli_path, "--port", port, "--show"]
+    body, status, headers = _run_led_cli_command(cmd, cli_path)
+    if status != 200:
+        return body, status, headers
+    data = json.loads(body)
+    data["settings"] = _extract_settings_from_stdout(data.get("stdout") or "")
+    return json.dumps(data), status, headers
--- a/src/controllers/pattern.py
+++ b/src/controllers/pattern.py
@@ -1,11 +1,16 @@
 from microdot import Microdot
 from models.pattern import Pattern
 from models.device import Device
-from models.tcp_clients import send_json_line_to_ip
+from util.driver_patterns import (
+    driver_patterns_dir,
+    is_firmware_builtin_pattern_module,
+    normalize_pattern_py_filename,
+)
 import json
 import re
-import sys
 import os
+import socket
+from urllib.parse import quote

 controller = Microdot()
 patterns = Pattern()
@@ -17,11 +22,6 @@ def _project_root():
    return os.path.abspath(os.path.join(here, "..", ".."))


-def _driver_patterns_dir():
-    here = os.path.dirname(__file__)
-    return os.path.abspath(os.path.join(here, "../../led-driver/src/patterns"))
-
-
 def _safe_pattern_filename(name):
    if not isinstance(name, str):
        return False
@@ -48,6 +48,52 @@ def _normalize_pattern_key(raw):
 def _valid_pattern_key(key):
    return bool(key and _PATTERN_KEY_RE.match(key))

+
+def _http_post_pattern_source(ip, filename, code_text, reload_patterns=True, timeout_s=10.0):
+    """POST source to driver /patterns/upload?name=...&reload=...; return True on 2xx."""
+    if not isinstance(ip, str) or not ip.strip():
+        return False
+    if not isinstance(filename, str) or not filename:
+        return False
+    if not isinstance(code_text, str):
+        return False
+
+    name_q = quote(filename, safe="")
+    reload_q = "1" if reload_patterns else "0"
+    path = "/patterns/upload?name=%s&reload=%s" % (name_q, reload_q)
+    body = code_text.encode("utf-8")
+    req = (
+        "POST %s HTTP/1.1\r\n"
+        "Host: %s\r\n"
+        "Content-Type: text/plain; charset=utf-8\r\n"
+        "Content-Length: %d\r\n"
+        "Connection: close\r\n"
+        "\r\n" % (path, ip, len(body))
+    ).encode("utf-8") + body
+
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    try:
+        sock.settimeout(timeout_s)
+        sock.connect((ip.strip(), 80))
+        sock.sendall(req)
+        data = b""
+        while True:
+            chunk = sock.recv(1024)
+            if not chunk:
+                break
+            data += chunk
+    except OSError:
+        return False
+    finally:
+        try:
+            sock.close()
+        except Exception:
+            pass
+
+    first_line = data.split(b"\r\n", 1)[0] if data else b""
+    # Accept any 2xx status.
+    return b" 2" in first_line
+
 def load_pattern_definitions():
    """Load pattern definitions from pattern.json file."""
    try:
@@ -75,7 +121,7 @@ def load_driver_pattern_names():
    """List available pattern module names from led-driver/src/patterns."""
    try:
        names = []
-        for filename in os.listdir(_driver_patterns_dir()):
+        for filename in os.listdir(driver_patterns_dir()):
            if not _safe_pattern_filename(filename) or filename == "__init__.py":
                continue
            names.append(filename[:-3])
@@ -111,7 +157,7 @@ async def get_pattern_definitions(request):
@controller.get('/ota/manifest')
 async def ota_manifest(request):
    """Manifest of driver pattern source files for OTA pulls."""
-    base_dir = _driver_patterns_dir()
+    base_dir = driver_patterns_dir()
    host = request.headers.get("Host", "")
    if not host:
        return json.dumps({"error": "Missing Host header"}), 400, {
@@ -137,16 +183,32 @@ async def ota_manifest(request):
@controller.get('/ota/file/<name>')
 async def ota_pattern_file(request, name):
    """Serve one driver pattern source file for OTA pulls."""
-    if not _safe_pattern_filename(name) or name == "__init__.py":
+    fname = normalize_pattern_py_filename(name)
+    if not fname or not _safe_pattern_filename(fname) or fname == "__init__.py":
        return json.dumps({"error": "Invalid filename"}), 400, {
            "Content-Type": "application/json"
        }
-    path = os.path.join(_driver_patterns_dir(), name)
+    if is_firmware_builtin_pattern_module(fname):
+        return json.dumps(
+            {
+                "error": "on and off are built into the driver firmware; there is no module file to serve.",
+            }
+        ), 400, {
+            "Content-Type": "application/json"
+        }
+    base = driver_patterns_dir()
+    path = os.path.join(base, fname)
    try:
        with open(path, "r") as f:
            content = f.read()
    except OSError:
-        return json.dumps({"error": "Pattern file not found"}), 404, {
+        return json.dumps(
+            {
+                "error": "Pattern file not found",
+                "path": path,
+                "hint": "Ensure led-driver is present or set LED_CONTROLLER_PATTERNS_DIR.",
+            }
+        ), 404, {
            "Content-Type": "application/json"
        }
    return content, 200, {"Content-Type": "text/plain; charset=utf-8"}
@@ -154,43 +216,47 @@ async def ota_pattern_file(request, name):

@controller.post('/<name>/send')
 async def send_pattern_to_device(request, name):
-    """Tell Wi-Fi driver(s) to download one pattern source file over HTTP."""
+    """Push one pattern source file directly to Wi-Fi driver(s) over HTTP."""
    if not isinstance(name, str):
        return json.dumps({"error": "Invalid pattern name"}), 400, {
            "Content-Type": "application/json"
        }
-    filename = name if name.endswith(".py") else (name + ".py")
-    if not _safe_pattern_filename(filename) or filename == "__init__.py":
+    filename = normalize_pattern_py_filename(name)
+    if not filename or not _safe_pattern_filename(filename) or filename == "__init__.py":
        return json.dumps({"error": "Invalid pattern filename"}), 400, {
            "Content-Type": "application/json"
        }
+    if is_firmware_builtin_pattern_module(filename):
+        return json.dumps(
+            {
+                "error": "on and off are built into the driver firmware; send does not apply.",
+            }
+        ), 400, {
+            "Content-Type": "application/json"
+        }

    devices = Device()
    body = request.json or {}
    requested_device_id = str(body.get("device_id") or "").strip()

-    path = os.path.join(_driver_patterns_dir(), filename)
+    base = driver_patterns_dir()
+    path = os.path.join(base, filename)
    if not os.path.exists(path):
-        return json.dumps({"error": "Pattern file not found"}), 404, {
+        return json.dumps(
+            {
+                "error": "Pattern file not found",
+                "path": path,
+                "hint": "Ensure led-driver is present or set LED_CONTROLLER_PATTERNS_DIR.",
+            }
+        ), 404, {
            "Content-Type": "application/json"
        }

-    file_url = "/patterns/ota/file/%s" % filename
-
-    msg = json.dumps(
-        {
-            "v": "1",
-            "manifest": {
-                "files": [
-                    {
-                        "name": filename,
-                        "url": file_url,
-                    }
-                ]
-            },
-        },
-        separators=(",", ":"),
-    )
+    try:
+        with open(path, "r") as f:
+            source = f.read()
+    except OSError as e:
+        return json.dumps({"error": str(e)}), 500, {"Content-Type": "application/json"}
    target_ids = []
    if requested_device_id:
        dev = devices.read(requested_device_id)
@@ -219,12 +285,12 @@ async def send_pattern_to_device(request, name):
        ip = str(dev.get("address") or "").strip()
        if not ip:
            continue
-        ok = await send_json_line_to_ip(ip, msg)
+        ok = _http_post_pattern_source(ip, filename, source, reload_patterns=True, timeout_s=10.0)
        if ok:
            sent_ids.append(did)

    if not sent_ids:
-        return json.dumps({"error": "No Wi-Fi drivers connected"}), 503, {
+        return json.dumps({"error": "No Wi-Fi drivers accepted pattern upload"}), 503, {
            "Content-Type": "application/json"
        }
    return json.dumps({"message": "Pattern sent", "pattern": filename, "device_ids": sent_ids, "sent_count": len(sent_ids)}), 200, {
@@ -261,12 +327,18 @@ async def upload_pattern_file(request):
        return json.dumps({"error": "invalid pattern filename"}), 400, {
            "Content-Type": "application/json"
        }
+    if is_firmware_builtin_pattern_module(filename):
+        return json.dumps(
+            {"error": "on and off are built into the driver firmware; use a different pattern name."}
+        ), 400, {
+            "Content-Type": "application/json"
+        }
    if not isinstance(code, str) or not code.strip():
        return json.dumps({"error": "code is required"}), 400, {
            "Content-Type": "application/json"
        }

-    path = os.path.join(_driver_patterns_dir(), filename)
+    path = os.path.join(driver_patterns_dir(), filename)
    exists = os.path.exists(path)
    if exists and not overwrite:
        return json.dumps({"error": "pattern file already exists", "name": filename}), 409, {
@@ -295,6 +367,7 @@ async def create_driver_pattern(request):
    Body JSON:
      name, code (required),
      min_delay, max_delay, max_colors (optional numbers),
+      has_background (optional bool),
      n1..n8 (optional string labels),
      overwrite (optional, default true).
    """
@@ -304,6 +377,12 @@ async def create_driver_pattern(request):
        return json.dumps({
            "error": "name must be a valid Python identifier (e.g. sparkle, my_pattern)",
        }), 400, {"Content-Type": "application/json"}
+    if is_firmware_builtin_pattern_module(key):
+        return json.dumps(
+            {"error": "on and off are built into the driver firmware; use a different pattern name."}
+        ), 400, {
+            "Content-Type": "application/json"
+        }

    code = data.get("code")
    if not isinstance(code, str) or not code.strip():
@@ -314,7 +393,7 @@ async def create_driver_pattern(request):
    overwrite = bool(data.get("overwrite", True))

    filename = key + ".py"
-    py_path = os.path.join(_driver_patterns_dir(), filename)
+    py_path = os.path.join(driver_patterns_dir(), filename)
    if os.path.exists(py_path) and not overwrite:
        return json.dumps({"error": "pattern file already exists", "name": filename}), 409, {
            "Content-Type": "application/json"
@@ -331,6 +410,9 @@ async def create_driver_pattern(request):
                "Content-Type": "application/json"
            }

+    if "has_background" in data:
+        meta["has_background"] = bool(data.get("has_background"))
+
    for i in range(1, 9):
        nk = "n%d" % i
        if nk not in data:
--- a/src/controllers/profile.py
+++ b/src/controllers/profile.py
@@ -124,6 +124,15 @@ async def create_profile(request):
                "auto": True,
                "n1": 2,
            },
+            {
+                "name": "Colour Cycle",
+                "pattern": "colour_cycle",
+                "colors": ["#FF0000", "#00FF00", "#0000FF"],
+                "brightness": 255,
+                "delay": 100,
+                "auto": True,
+                "n1": 1,
+            },
            {
                "name": "transition",
                "pattern": "transition",
@@ -132,6 +141,39 @@ async def create_profile(request):
                "delay": 500,
                "auto": True,
            },
+            {
+                "name": "flicker",
+                "pattern": "flicker",
+                "colors": ["#FFB84D"],
+                "brightness": 255,
+                "delay": 80,
+                "auto": True,
+                "n1": 30,
+            },
+            {
+                "name": "flame",
+                "pattern": "flame",
+                "colors": [],
+                "brightness": 255,
+                "delay": 50,
+                "auto": True,
+                "n1": 35,
+                "n2": 2600,
+                "n3": 0,
+                "n4": 0,
+            },
+            {
+                "name": "twinkle",
+                "pattern": "twinkle",
+                "colors": ["#78C8FF", "#508CFF", "#B478FF", "#64DCE8", "#A0C8FF"],
+                "brightness": 255,
+                "delay": 55,
+                "auto": True,
+                "n1": 72,
+                "n2": 140,
+                "n3": 2,
+                "n4": 6,
+            },
        ]

        for preset_data in default_preset_defs:
--- a/src/controllers/settings.py
+++ b/src/controllers/settings.py
@@ -1,7 +1,11 @@
-from microdot import Microdot, send_file
-from settings import Settings
+import asyncio
 import json

+from microdot import Microdot, send_file
+
+from models import wifi_ws_clients
+from settings import Settings
+
 controller = Microdot()
 settings = Settings()

@@ -63,17 +67,36 @@ def _validate_wifi_channel(value):
    return ch


+def _validate_global_brightness(value):
+    """Return int 0–255 or raise ValueError."""
+    v = int(value)
+    if v < 0 or v > 255:
+        raise ValueError("global_brightness must be between 0 and 255")
+    return v
+
+
@controller.put('/settings')
 async def update_settings(request):
    """Update general settings."""
    try:
        data = request.json
+        global_brightness_changed = False
        for key, value in data.items():
            if key == 'wifi_channel' and value is not None:
                settings[key] = _validate_wifi_channel(value)
+            elif key == 'global_brightness' and value is not None:
+                settings[key] = _validate_global_brightness(value)
+                global_brightness_changed = True
            else:
                settings[key] = value
        settings.save()
+        if global_brightness_changed:
+            try:
+                asyncio.get_running_loop().create_task(
+                    wifi_ws_clients.broadcast_global_brightness_to_tcp_drivers()
+                )
+            except RuntimeError:
+                pass
        return json.dumps({"message": "Settings updated successfully"}), 200, {'Content-Type': 'application/json'}
    except ValueError as e:
        return json.dumps({"error": str(e)}), 400
--- a/src/main.py
+++ b/src/main.py
@@ -21,9 +21,10 @@ import controllers.scene as scene
 import controllers.pattern as pattern
 import controllers.settings as settings_controller
 import controllers.device as device_controller
+import controllers.led_tool as led_tool_controller
 from models.transport import get_sender, set_sender, get_current_sender
 from models.device import Device, normalize_mac
-from models import tcp_clients as tcp_client_registry
+from models import wifi_ws_clients as tcp_client_registry
 from util.device_status_broadcaster import (
    broadcast_device_tcp_snapshot_to,
    broadcast_device_tcp_status,
@@ -33,82 +34,8 @@ from util.device_status_broadcaster import (

 _tcp_device_lock = threading.Lock()

-# Wi-Fi drivers send one hello line then stay quiet; periodic outbound data makes dead peers
-# fail drain() within this interval (keepalive alone is often slow or ineffective).
-TCP_LIVENESS_PING_INTERVAL_S = 12.0
 DISCOVERY_UDP_PORT = 8766

-# Keepalive or lossy Wi-Fi can still surface OSError(110) / TimeoutError on recv or wait_closed.
-_TCP_PEER_GONE = (
-    BrokenPipeError,
-    ConnectionResetError,
-    ConnectionAbortedError,
-    ConnectionRefusedError,
-    TimeoutError,
-    OSError,
-)
-
-
-def _tcp_socket_from_writer(writer):
-    sock = writer.get_extra_info("socket")
-    if sock is not None:
-        return sock
-    transport = getattr(writer, "transport", None)
-    if transport is not None:
-        return transport.get_extra_info("socket")
-    return None
-
-
-def _enable_tcp_keepalive(writer) -> None:
-    """
-    Detect vanished peers (power off, Wi-Fi drop) without waiting for a send() failure.
-    Linux: shorten time before the first keepalive probe; other platforms: SO_KEEPALIVE only.
-    """
-    sock = _tcp_socket_from_writer(writer)
-    if sock is None:
-        return
-    try:
-        sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
-    except OSError:
-        return
-    if hasattr(socket, "TCP_KEEPIDLE"):
-        try:
-            sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, 120)
-        except OSError:
-            pass
-    if hasattr(socket, "TCP_KEEPINTVL"):
-        try:
-            sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, 15)
-        except OSError:
-            pass
-    if hasattr(socket, "TCP_KEEPCNT"):
-        try:
-            sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, 4)
-        except OSError:
-            pass
-    # Do not set TCP_USER_TIMEOUT: a short value causes Errno 110 on recv for Wi-Fi peers
-    # when ACKs are delayed (ESP power save, lossy links). Liveness pings already clear dead
-    # sessions via drain().
-
-
-async def _tcp_liveness_ping_loop(writer, peer_ip: str) -> None:
-    """Send a bare newline so ``drain()`` fails soon after the peer disappears."""
-    while True:
-        await asyncio.sleep(TCP_LIVENESS_PING_INTERVAL_S)
-        if writer.is_closing():
-            return
-        try:
-            writer.write(b"\n")
-            await writer.drain()
-        except Exception as exc:
-            print(f"[TCP] liveness ping failed {peer_ip!r}: {exc!r}")
-            tcp_client_registry.unregister_tcp_writer(peer_ip, writer)
-            try:
-                writer.close()
-            except Exception:
-                pass
-            return
-

 def _register_udp_device_sync(
    device_name: str, peer_ip: str, mac, device_type=None
@@ -116,10 +43,10 @@ def _register_udp_device_sync(
    with _tcp_device_lock:
        try:
            d = Device()
-            did = d.upsert_wifi_tcp_client(
+            did, persisted = d.upsert_wifi_tcp_client(
                device_name, peer_ip, mac, device_type=device_type
            )
-            if did:
+            if did and persisted:
                print(
                    f"UDP device registered: mac={did} name={device_name!r} ip={peer_ip!r}"
                )
@@ -155,6 +82,8 @@ async def _handle_udp_discovery(sock, udp_holder=None) -> None:
                    device_type = parsed.get("type") or parsed.get("device_type")
                    if dns and normalize_mac(mac):
                        _register_udp_device_sync(dns, peer_ip, mac, device_type)
+                        if str(parsed.get("v") or "") == "1":
+                            tcp_client_registry.ensure_driver_connection(peer_ip)
            except (UnicodeError, ValueError, TypeError):
                pass
        try:
@@ -163,6 +92,109 @@ async def _handle_udp_discovery(sock, udp_holder=None) -> None:
            print(f"[UDP] echo send failed: {e!r}")


+def _prime_wifi_outbound_driver_connections() -> None:
+    """
+    For each Wi‑Fi device in the registry with a usable IPv4, start (or keep) the
+    outbound WebSocket task. The client loop reconnects automatically if the link
+    drops. Presets are not pushed automatically; use Send Presets / profile apply.
+    """
+    n = 0
+    try:
+        dev = Device()
+        for mac_key, doc in list(dev.items()):
+            if not isinstance(doc, dict):
+                continue
+            if doc.get("transport") != "wifi":
+                continue
+            ip = _ipv4_address(str(doc.get("address") or ""))
+            if not ip:
+                continue
+            tcp_client_registry.ensure_driver_connection(ip)
+            n += 1
+    except Exception as e:
+        print(f"[startup] Wi-Fi driver connection prime failed: {e!r}")
+        traceback.print_exception(type(e), e, e.__traceback__)
+        return
+    if n:
+        print(f"[startup] primed outbound WebSocket for {n} Wi-Fi driver(s)")
+
+
+def _ipv4_address(addr: str) -> str | None:
+    """Return dotted IPv4 string or None (hostnames skipped for UDP nudge)."""
+    s = (addr or "").strip()
+    if not s:
+        return None
+    parts = s.split(".")
+    if len(parts) != 4:
+        return None
+    try:
+        nums = [int(p) for p in parts]
+    except ValueError:
+        return None
+    if not all(0 <= n <= 255 for n in nums):
+        return None
+    return s
+
+
+async def _periodic_wifi_driver_hello_loop(settings, udp_holder) -> None:
+    """
+    While a registered Wi-Fi driver has no outbound WebSocket, send a short JSON hello on
+    UDP discovery port so the device can announce itself and we can reconnect.
+    """
+    try:
+        interval = float(settings.get("wifi_driver_hello_interval_s", 10.0))
+    except (TypeError, ValueError):
+        interval = 10.0
+    if interval <= 0:
+        return
+
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    sock.setblocking(False)
+    loop = asyncio.get_running_loop()
+    try:
+        while True:
+            await asyncio.sleep(interval)
+            if udp_holder.get("closing"):
+                break
+            try:
+                dev = Device()
+            except Exception as e:
+                print(f"[hello] device list failed: {e!r}")
+                continue
+            for _mac_key, doc in list(dev.items()):
+                if not isinstance(doc, dict):
+                    continue
+                if doc.get("transport") != "wifi":
+                    continue
+                ip = _ipv4_address(str(doc.get("address") or ""))
+                if not ip:
+                    continue
+                if tcp_client_registry.tcp_client_connected(ip):
+                    continue
+                name = (doc.get("name") or "").strip()
+                mac = normalize_mac(doc.get("id") or _mac_key)
+                if not name or not mac:
+                    continue
+                line = (
+                    json.dumps(
+                        {"m": "hello", "device_name": name, "mac": mac},
+                        separators=(",", ":"),
+                    )
+                    + "\n"
+                )
+                try:
+                    await loop.sock_sendto(
+                        sock, line.encode("utf-8"), (ip, DISCOVERY_UDP_PORT)
+                    )
+                except OSError as e:
+                    print(f"[hello] UDP to {ip!r} failed: {e!r}")
+    finally:
+        try:
+            sock.close()
+        except OSError:
+            pass
+
+
 async def _run_udp_discovery_server(udp_holder=None) -> None:
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.setblocking(False)
@@ -189,87 +221,6 @@ async def _run_udp_discovery_server(udp_holder=None) -> None:
            pass


-async def _handle_tcp_client(reader, writer):
-    """Read newline-delimited JSON from Wi-Fi LED drivers; forward to serial bridge."""
-    peer = writer.get_extra_info("peername")
-    peer_ip = peer[0] if peer else ""
-    peer_label = f"{peer_ip}:{peer[1]}" if peer and len(peer) > 1 else peer_ip or "?"
-    print(f"[TCP] client connected {peer_label}")
-    _enable_tcp_keepalive(writer)
-    tcp_client_registry.register_tcp_writer(peer_ip, writer)
-    ping_task = asyncio.create_task(_tcp_liveness_ping_loop(writer, peer_ip))
-    sender = get_current_sender()
-    buf = b""
-    try:
-        while True:
-            try:
-                chunk = await reader.read(4096)
-            except asyncio.CancelledError:
-                raise
-            except _TCP_PEER_GONE as e:
-                print(f"[TCP] read ended ({peer_label}): {e!r}")
-                tcp_client_registry.unregister_tcp_writer(peer_ip, writer)
-                break
-            if not chunk:
-                break
-            buf += chunk
-            while b"\n" in buf:
-                raw_line, buf = buf.split(b"\n", 1)
-                line = raw_line.strip()
-                if not line:
-                    continue
-                try:
-                    text = line.decode("utf-8")
-                except UnicodeDecodeError:
-                    print(
-                        f"[TCP] recv {peer_label} (non-UTF-8, {len(line)} bytes): {line!r}"
-                    )
-                    continue
-                print(f"[TCP] recv {peer_label}: {text}")
-                try:
-                    parsed = json.loads(text)
-                except json.JSONDecodeError:
-                    if sender:
-                        try:
-                            await sender.send(text)
-                        except Exception:
-                            pass
-                    continue
-                if isinstance(parsed, dict):
-                    addr = parsed.pop("to", None)
-                    payload = json.dumps(parsed) if parsed else "{}"
-                    if sender:
-                        try:
-                            await sender.send(payload, addr=addr)
-                        except Exception as e:
-                            print(f"TCP forward to bridge failed: {e}")
-                elif sender:
-                    try:
-                        await sender.send(text)
-                    except Exception:
-                        pass
-    finally:
-        # Drop registry + broadcast connected:false before awaiting ping/close so the UI
-        # does not stay green if ping or wait_closed blocks on a timed-out peer.
-        outcome = tcp_client_registry.unregister_tcp_writer(peer_ip, writer)
-        if outcome == "superseded":
-            print(
-                f"[TCP] TCP session ended (same IP already has a newer connection): {peer_label}"
-            )
-        ping_task.cancel()
-        try:
-            await ping_task
-        except asyncio.CancelledError:
-            pass
-        try:
-            writer.close()
-            await writer.wait_closed()
-        except asyncio.CancelledError:
-            raise
-        except _TCP_PEER_GONE:
-            tcp_client_registry.unregister_tcp_writer(peer_ip, writer)
-
-
 async def _send_bridge_wifi_channel(settings, sender):
    """Tell the serial ESP32 bridge to set STA channel (settings wifi_channel); not forwarded as ESP-NOW."""
    try:
@@ -285,23 +236,6 @@ async def _send_bridge_wifi_channel(settings, sender):
        print(f"[startup] bridge channel message failed: {e}")


-async def _run_tcp_server(settings, tcp_holder=None):
-    if not settings.get("tcp_enabled", True):
-        print("TCP server disabled (tcp_enabled=false)")
-        return
-    port = int(settings.get("tcp_port", 8765))
-    server = await asyncio.start_server(_handle_tcp_client, "0.0.0.0", port)
-    print(f"TCP server listening on 0.0.0.0:{port}")
-    if tcp_holder is not None:
-        tcp_holder["server"] = server
-    try:
-        async with server:
-            await server.serve_forever()
-    finally:
-        if tcp_holder is not None:
-            tcp_holder.pop("server", None)
-
-
 async def main(port=80):
    settings = Settings()
    print(settings)
@@ -340,7 +274,9 @@ async def main(port=80):
    app.mount(pattern.controller, '/patterns')
    app.mount(settings_controller.controller, '/settings')
    app.mount(device_controller.controller, '/devices')
+    app.mount(led_tool_controller.controller, '/led-tool')

+    tcp_client_registry.set_settings(settings)
    tcp_client_registry.set_tcp_status_broadcaster(broadcast_device_tcp_status)

    # Serve index.html at root (cwd is src/ when run via pipenv run run)
@@ -349,12 +285,6 @@ async def main(port=80):
        """Serve the main web UI."""
        return send_file('templates/index.html')

-    # Serve settings page
-    @app.route('/settings')
-    def settings_page(request):
-        """Serve the settings page."""
-        return send_file('templates/settings.html')
-    
    # Favicon: avoid 404 in browser console (no file needed)
    @app.route('/favicon.ico')
    def favicon(request):
@@ -407,11 +337,11 @@ async def main(port=80):



-    # Touch Device singleton early so db/device.json exists before first TCP hello.
+    # Touch Device singleton early so db/device.json exists before first UDP hello.
    Device()
    await _send_bridge_wifi_channel(settings, sender)
+    _prime_wifi_outbound_driver_connections()

-    tcp_holder = {}
    udp_holder = {"closing": False}
    loop = asyncio.get_running_loop()

@@ -424,9 +354,7 @@ async def main(port=80):
                u.close()
            except OSError:
                pass
-        s = tcp_holder.get("server")
-        if s is not None:
-            s.close()
+        tcp_client_registry.cancel_all_driver_tasks()
        if getattr(app, "server", None) is not None:
            app.shutdown()

@@ -439,26 +367,33 @@ async def main(port=80):
        except (NotImplementedError, RuntimeError):
            pass

-        # Await HTTP + driver TCP together so bind failures (e.g. port 80 in use) surface
-        # here instead of as an unretrieved Task exception; the UI WebSocket drops if HTTP
-        # never starts, which clears Wi-Fi presence dots.
+        # Await HTTP + UDP discovery; bind failures (e.g. port 80 in use) surface here.
        try:
            await asyncio.gather(
                app.start_server(host="0.0.0.0", port=port),
-                _run_tcp_server(settings, tcp_holder),
                _run_udp_discovery_server(udp_holder),
+                _periodic_wifi_driver_hello_loop(settings, udp_holder),
            )
        except OSError as e:
            if e.errno == errno.EADDRINUSE:
-                tcp_p = int(settings.get("tcp_port", 8765))
                print(
                    f"[server] bind failed (address already in use): {e!s}\n"
-                    f"[server] HTTP is configured for port {port} (env PORT); "
-                    f"Wi-Fi LED drivers use tcp_port {tcp_p}. "
+                    f"[server] HTTP is configured for port {port} (env PORT). "
                    f"Stop the other process or use a free port, e.g. PORT=8080 pipenv run run"
                )
            raise
    finally:
+        srv = getattr(app, "server", None)
+        if srv is not None:
+            try:
+                srv.close()
+                await srv.wait_closed()
+            except Exception:
+                pass
+            try:
+                app.server = None
+            except Exception:
+                pass
        if shutdown_handlers_registered:
            for sig in (signal.SIGINT, signal.SIGTERM):
                try:
--- a/src/models/device.py
+++ b/src/models/device.py
@@ -237,16 +237,19 @@ class Device(Model):
        """
        Register or update a Wi-Fi client by **MAC** (storage id). Updates **name**,
        **address** (peer IP), and optionally **type** from the client hello when valid.
+
+        Returns ``(mac_hex | None, persisted)`` where **persisted** is True iff ``save()``
+        ran (new row or field changes). Duplicate hellos with identical data are no-ops.
        """
        mac_hex = normalize_mac(mac)
        if not mac_hex:
-            return None
+            return None, False
        name = (device_name or "").strip()
        if not name:
-            return None
+            return None, False
        ip = normalize_address_for_transport(peer_ip, "wifi")
        if not ip:
-            return None
+            return None, False
        resolved_type = None
        if device_type is not None:
            try:
@@ -254,7 +257,8 @@ class Device(Model):
            except ValueError:
                resolved_type = None
        if mac_hex in self:
-            merged = dict(self[mac_hex])
+            prev = self[mac_hex]
+            merged = dict(prev)
            merged["name"] = name
            if resolved_type is not None:
                merged["type"] = resolved_type
@@ -263,9 +267,11 @@ class Device(Model):
            merged["transport"] = "wifi"
            merged["address"] = ip
            merged["id"] = mac_hex
+            if merged == prev:
+                return mac_hex, False
            self[mac_hex] = merged
            self.save()
-            return mac_hex
+            return mac_hex, True
        self[mac_hex] = {
            "id": mac_hex,
            "name": name,
@@ -276,4 +282,4 @@ class Device(Model):
            "zones": [],
        }
        self.save()
-        return mac_hex
+        return mac_hex, True
--- a/src/models/tcp_clients.py
+++ b/src/models/tcp_clients.py
@@ -1,115 +0,0 @@
-"""Track connected Wi-Fi LED drivers (TCP clients) for outbound JSON lines."""
-
-import asyncio
-
-_writers = {}
-
-
-def prune_stale_tcp_writers() -> None:
-    """Remove writers that are already closing so the UI does not stay online."""
-    stale = [(ip, w) for ip, w in list(_writers.items()) if w.is_closing()]
-    for ip, w in stale:
-        unregister_tcp_writer(ip, w)
-
-
-def normalize_tcp_peer_ip(ip: str) -> str:
-    """Match asyncio peer addresses to registry IPs (strip IPv4-mapped IPv6 prefix)."""
-    s = str(ip).strip()
-    if s.lower().startswith("::ffff:"):
-        s = s[7:]
-    return s
-# Optional ``async def (ip: str, connected: bool) -> None`` set from ``main``.
-_tcp_status_broadcast = None
-
-
-def set_tcp_status_broadcaster(coro) -> None:
-    global _tcp_status_broadcast
-    _tcp_status_broadcast = coro
-
-
-def _schedule_tcp_status_broadcast(ip: str, connected: bool) -> None:
-    fn = _tcp_status_broadcast
-    if not fn:
-        return
-    try:
-        loop = asyncio.get_running_loop()
-    except RuntimeError:
-        return
-    try:
-        loop.create_task(fn(ip, connected))
-    except Exception:
-        pass
-
-
-def register_tcp_writer(peer_ip: str, writer) -> None:
-    if not peer_ip:
-        return
-    key = normalize_tcp_peer_ip(peer_ip)
-    if not key:
-        return
-    old = _writers.get(key)
-    _writers[key] = writer
-    _schedule_tcp_status_broadcast(key, True)
-    if old is not None and old is not writer:
-        try:
-            old.close()
-        except Exception:
-            pass
-
-
-def unregister_tcp_writer(peer_ip: str, writer=None) -> str:
-    """
-    Remove the writer for peer_ip. If ``writer`` is given, only pop when it is still
-    the registered instance (avoids a replaced TCP session removing the new one).
-
-    Returns ``removed`` (cleared live session + UI offline), ``noop`` (already gone),
-    or ``superseded`` (this writer is not the registered one for that IP).
-    """
-    if not peer_ip:
-        return "noop"
-    key = normalize_tcp_peer_ip(peer_ip)
-    if not key:
-        return "noop"
-    current = _writers.get(key)
-    if writer is not None:
-        if current is None:
-            return "noop"
-        if current is not writer:
-            return "superseded"
-    had = key in _writers
-    if had:
-        _writers.pop(key, None)
-        _schedule_tcp_status_broadcast(key, False)
-        print(f"[TCP] device disconnected: {key}")
-        return "removed"
-    return "noop"
-
-
-def list_connected_ips():
-    """IPs with an active TCP writer (for UI snapshot)."""
-    prune_stale_tcp_writers()
-    return list(_writers.keys())
-
-
-def tcp_client_connected(ip: str) -> bool:
-    """True if a Wi-Fi driver is connected on this IP (TCP writer registered)."""
-    prune_stale_tcp_writers()
-    key = normalize_tcp_peer_ip(ip)
-    return bool(key and key in _writers)
-
-
-async def send_json_line_to_ip(ip: str, json_str: str) -> bool:
-    """Send one newline-terminated JSON message to a connected TCP client."""
-    ip = normalize_tcp_peer_ip(ip)
-    writer = _writers.get(ip)
-    if not writer:
-        return False
-    try:
-        line = json_str if json_str.endswith("\n") else json_str + "\n"
-        writer.write(line.encode("utf-8"))
-        await writer.drain()
-        return True
-    except Exception as exc:
-        print(f"[TCP] send to {ip} failed: {exc}")
-        unregister_tcp_writer(ip, writer)
-        return False
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Jimmy	3d6ef5c7b4	chore(git): stop tracking runtime db state files Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-06 20:35:50 +12:00
Jimmy	78a4ce009c	feat(ui): refresh preset data flow and bump driver pointer Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-06 20:28:56 +12:00
Jimmy	7ccab6fbc4	feat(zones): persist per-zone brightness and update submodules Store zone brightness in model/data flow, apply it in the zones UI, and record updated led-driver, led-simulator, and led-tool submodule pointers. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-04 22:49:06 +12:00
pi	827eb97203	feat(settings): server global brightness and Wi-Fi driver resync - Serve GET /settings as JSON by removing duplicate HTML route (use /settings/page for the standalone UI). - Save global_brightness via PUT; broadcast to connected drivers; push saved level when outbound WS connects. - Zones UI loads brightness from GET /settings only (no localStorage). - Bump led-driver submodule for settings.save on brightness with save flag. - Extend API doc and endpoint tests for global_brightness. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 22:15:30 +12:00
pi	3cca0cffc5	chore: bump led-tool and led-driver submodules Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 21:27:32 +12:00
pi	d36828bde2	feat(ui): persist header brightness slider in localStorage Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 21:27:31 +12:00
pi	ed0048c795	chore(service): avoid network-online stall and speed pipenv boot Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 21:27:31 +12:00
pi	b316edbaf9	fix(wifi): stagger driver ws dials and extend initial retry window Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 21:27:31 +12:00
Jimmy	c1b0c41ef2	fix(transport): disable UART ESP-NOW bridge by default Require serial_enabled true in settings to open serial_port; default false in set_defaults for Wi-Fi-only and dev machines. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 15:07:16 +12:00
Jimmy	3bb75d49de	feat(util): add binary envelope packing and message helpers Includes tests for v1/v2 envelope round-trips. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 14:56:37 +12:00
Jimmy	3d77cb448a	chore: add vertical stand OpenSCAD model Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 14:56:35 +12:00
Jimmy	49383c0003	feat(espnow): add espnow-sender utility Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 14:56:35 +12:00
Jimmy	7d821b9c1c	chore(db): add local preset fixtures Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 14:56:35 +12:00
Jimmy	9b7e387ea6	chore(scripts): add dev-run helper Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 14:56:34 +12:00
Jimmy	b4f0d1891e	chore(submodule): bump led-driver and led-tool; register led-simulator led-simulator was already a gitlink; add the missing .gitmodules entry. Co-authored-by: Cursor <cursoragent@cursor.com>	2026-05-03 14:56:30 +12:00
jimmy	0da30b6d6b	fix(submodule): update led-tool pointer to existing commit	2026-04-30 23:28:39 +12:00
Jimmy	6cbb728d9a	feat(patterns): add new pattern suite and improve mobile controls Add a broad set of LED patterns with metadata/tests and update zone/profile preset seeding, while refining mobile/desktop UI behavior for scrolling, brightness controls, and bulk pattern sending.	2026-04-23 20:07:55 +12:00
Jimmy	ff92451a76	feat(profiles): seed twinkle preset defaults Made-with: Cursor	2026-04-21 20:43:25 +12:00
Jimmy	60485bc06a	feat(ui): add clear device presets action Made-with: Cursor	2026-04-21 00:44:38 +12:00
Jimmy	f6f299c3e5	feat(presets): add radiate pattern defaults Made-with: Cursor	2026-04-20 23:38:02 +12:00
Jimmy	66485f5c59	chore(led-driver): bump submodule for patterns and tests Made-with: Cursor	2026-04-19 23:28:22 +12:00
Jimmy	5f9ff9bcc9	style(ui): presets patterns and layout tweaks Made-with: Cursor	2026-04-19 23:28:08 +12:00
Jimmy	35730b36f0	feat(api): improve pattern deploy and device tcp handling Made-with: Cursor	2026-04-19 23:28:01 +12:00
Jimmy	d516833cc3	feat(profiles): seed colour cycle flicker and flame presets Made-with: Cursor	2026-04-19 23:27:57 +12:00
Jimmy	220be64dec	feat(db): add flicker flame presets and pattern metadata Made-with: Cursor	2026-04-19 23:27:49 +12:00
Jimmy	b433477c64	chore(db): trim device registry Made-with: Cursor	2026-04-19 23:27:37 +12:00
Jimmy	43b7047c57	chore(submodule): bump led-tool for cli upload flags Made-with: Cursor	2026-04-15 00:46:40 +12:00
Jimmy	167417d1ec	feat(ui): add web led-tool usb controls Made-with: Cursor	2026-04-15 00:46:31 +12:00
Jimmy	fb8141b320	fix(server): close http listener cleanly on shutdown	2026-04-15 00:00:23 +12:00
Jimmy	96712dda88	feat(controller): migrate wifi drivers from tcp to websocket clients	2026-04-14 23:13:26 +12:00
Jimmy	f5a7b42e7c	fix(rules): revert unintended submodule changes	2026-04-14 21:54:02 +12:00
Jimmy	1b1e9d727e	chore(rules): enforce strict user-scoped changes	2026-04-14 21:50:55 +12:00
Jimmy	668d29b786	chore(test): move pytest defaults to pyproject.toml Made-with: Cursor	2026-04-12 02:39:39 +12:00
Jimmy	e5f42e099e	chore: remove esp32 firmware tree and dev mpremote helper Made-with: Cursor	2026-04-12 02:39:37 +12:00
Jimmy	a9edda38ef	test(browser): fixture, env host and pacing, safer colour inputs Made-with: Cursor	2026-04-12 02:34:46 +12:00
Jimmy	edec5ff460	chore(git): ignore pytest cache and ropeproject Made-with: Cursor	2026-04-12 02:34:44 +12:00
pi	264eb7296f	test: fix zone_ctl fixture, pattern assertions, and browser cleanup Made-with: Cursor	2026-04-12 00:27:43 +12:00
pi	fbd4295302	feat(ui): patterns list and create form layout Made-with: Cursor	2026-04-12 00:13:58 +12:00
pi	7bdb324ebc	feat(patterns): driver_patterns helper, on/off ota guard, drop duplicate py tree Made-with: Cursor	2026-04-12 00:13:56 +12:00
pi	28b19b5219	docs: zones, transports, pattern ota, and submodule readmes Made-with: Cursor	2026-04-12 00:13:54 +12:00
				`@@ -1 +0,0 @@`
				`{"f0f5bdfb9d30": {"id": "f0f5bdfb9d30", "name": "a", "type": "led", "transport": "wifi", "address": "10.1.1.182", "default_pattern": null, "zones": []}, "188b0e1560a8": {"id": "188b0e1560a8", "name": "a", "type": "led", "transport": "wifi", "address": "10.1.1.242", "default_pattern": null, "zones": []}, "24ec4acaffcc": {"id": "24ec4acaffcc", "name": "c", "type": "led", "transport": "wifi", "address": "10.1.1.171", "default_pattern": null, "zones": []}}`
				`@@ -0,0 +1 @@`
				`PRST1xœMÎ1!†á¿b¾[=5ÌNÎnÆô@I°\€Åÿ»Å.²<oÚ¼Aîéa±?,ŽÅQ<C385>-f‚ÂìZó…xÓþÇ·œr©°'!h~<´î-Õg…k‰÷G#_ùØ0ùä^Ü#7-a;FX ka6ÂVØý˜K1ùKœø_Ÿ/ÐM4y`
				`@@ -0,0 +1 @@`
				PRST1xœ5ŽAƒ E¯b¾[¨U+WiŒ¡2¶¦`š¦éÝ’nxÌ›Y¼Œ\|ùPÌÚÎ<C39A>Â¿ˆ60l2r&.?ýýlµuâ‚Rõ\|àCt%Wuß5®n½Ýƒ!OjÎiùN¹ÜN¦‚¨¢35DÑ@¤é”Ñft}ÆùÀæì²jšVÓª#TSL<53>-)ËìZ³ôŒßQ•AÓ
				`@@ -0,0 +1 @@`
				`PRST1xњEО1В0Р« ПљЎiЎ ЂK „5)MЪФвоXНЂ—gщяБD72В‹lF—зВѓЙ‰pЋьoчR^@glOлаbpЛющ’И‹mУЬФлкЉ$ђдВС‚:ҐХљТЃ¬Іi/о+}еP9®L9=\|а«ф‹пжg2д`
				`@@ -1 +0,0 @@`
				{"1": {"name": "default", "names": ["a", "c", "a"], "presets": [["4", "2", "7"], ["3", "14", "5"], ["8", "10", "11"], ["9", "12", "1"], ["13", "37", "6"]], "presets_flat": ["4", "2", "7", "3", "14", "5", "8", "10", "11", "9", "12", "1", "13", "37", "6"], "default_preset": "15"}, "2": {"name": "default", "names": ["1", "2", "3", "4", "5", "6", "7", "8", "0", "a"], "presets": [["16", "17", "18"], ["19", "20", "21"], ["22", "23", "24"], ["25", "26", "27"], ["28", "29", "30"]], "presets_flat": ["16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30"]}, "3": {"name": "default", "names": ["1"], "presets": [], "default_preset": null}, "4": {"name": "default", "names": ["1"], "presets": [], "default_preset": null}, "5": {"name": "dj", "names": ["dj"], "presets": [["31", "32", "33"]], "default_preset": "31", "presets_flat": ["31", "32", "33"]}, "6": {"name": "default", "names": ["1"], "presets": [], "default_preset": null}, "7": {"name": "dj", "names": ["dj"], "presets": [["34", "35", "36"]], "default_preset": "34", "presets_flat": ["34", "35", "36"]}, "8": {"name": "test", "names": ["11"], "presets": [["1", "2", "3"], ["4", "5"]], "default_preset": "1", "presets_flat": ["1", "2", "3", "4", "5"]}}