feat(audio): move beat routing server-side and extend presets

Route beat-triggered manual selects from the controller server, add preset background and beat-counter UI support, and bump led-driver to include the matching pattern/runtime fixes.

Co-authored-by: Cursor <cursoragent@cursor.com>

.cursor/rules/pattern-workflow.mdc

@@ -7,6 +7,8 @@ alwaysApply: true
 
 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.
+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. Optionally set **`supports_manual`** to `false` when the pattern is a poor fit for manual mode or audio beat triggers (smooth/blended animations); omit or `true` otherwise.
 
 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.
+
+4. For any pattern that supports both auto and manual modes, keep behaviour parity unless explicitly requested otherwise: background colour handling, colour-cycling order, and parameter timing semantics (e.g. `n2`/`n3` meaning) must match between auto and manual paths.

.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).

.gitignore

@@ -28,6 +28,17 @@ Thumbs.db
 scripts/.led-controller-venv
 docs/.help-print.html
 settings.json
+# Track shared JSON + preset binaries; ignore other db/*.json (e.g. device, zone) locally
+db/*
+!db/group.json
+!db/palette.json
+!db/pattern.json
+!db/preset.json
+!db/profile.json
+!db/scene.json
+!db/sequence.json
+!db/presets/
+!db/presets/*.bin
 *.log
 *.db
 *.sqlite

Pipfile

@@ -14,6 +14,8 @@ selenium = "*"
 adafruit-ampy = "*"
 microdot = "*"
 websockets = "*"
+numpy = "*"
+sounddevice = "*"
 
 [dev-packages]
 pytest = "*"
@@ -22,9 +24,10 @@ pytest = "*"
 python_version = "3.11"
 
 [scripts]
-web = "python /home/pi/led-controller/tests/web.py"
+web = "python tests/web.py"
-watch = "python -m watchfiles 'python tests/web.py' src tests"
+watch = "python -m watchfiles \"python tests/web.py\" src tests"
-install = "pipenv install"
 run = "sh -c 'cd src && python main.py'"
-dev = "watchfiles \"sh -c 'cd src && python main.py'\" src"
+dev = "python -m watchfiles \"sh -c 'cd src && python main.py'\" src"
-help-pdf = "sh scripts/build_help_pdf.sh"
+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'"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "98da2012e549e7b62ed49a5e1717acaf535b71e8df61bf4108d25b9023be612e"
+            "sha256": "7975a888034cb3e0f68c7b866f7e69e5a1db7a5228fe1f02d6cb5f9c180de557"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -40,6 +40,13 @@
             "markers": "python_version >= '3.9'",
             "version": "==26.1.0"
         },
+        "aubio": {
+            "hashes": [
+                "sha256:df1244f6c4cf5bea382c8c2d35aa43bc31f4cf631fe325ae3992c219546a4202"
+            ],
+            "index": "pypi",
+            "version": "==0.4.9"
+        },
         "bitarray": {
             "hashes": [
                 "sha256:0256d57e294414bfe4fec4f852fd1d9ae361228c71b082332bf81c8b8fc69f80",
@@ -252,7 +259,7 @@
                 "sha256:fc7de24befaeae77ba923797c7c87834c73648a05a4bde34b3b7e5588973a453",
                 "sha256:fe562eb1a64e67dd297ccc4f5addea2501664954f2692b69a76449ec7913ecbf"
             ],
-            "markers": "python_full_version >= '3.9' and platform_python_implementation != 'PyPy'",
+            "markers": "python_version >= '3.9'",
             "version": "==2.0.0"
         },
         "charset-normalizer": {
@@ -400,64 +407,65 @@
         },
         "cryptography": {
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-            "markers": "python_version >= '3.8' and python_full_version not in '3.9.0, 3.9.1'",
+            "markers": "python_version >= '3.9' and python_full_version not in '3.9.0, 3.9.1'",
-            "version": "==47.0.0"
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             "version": "==5.2.0"
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@@ -485,11 +493,11 @@
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         "markdown-it-py": {
             "hashes": [
-                "sha256:87327c59b172c5011896038353a81343b6754500a08cd7a4973bb48c6d578147",
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@@ -505,6 +513,7 @@
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@@ -513,8 +522,88 @@
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             ],
             "index": "pypi",
+            "markers": "python_version >= '3.4'",
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+        "numpy": {
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+                "sha256:30caa73029a225b2d40d9fae193e008e24b2026b7ee1a867b7ee8d96ca1a448e",
+                "sha256:42c16925aa5a02362f986765f9ebabf20de75cdefdca827d14315c568dcab113",
+                "sha256:45dbed2ab436a9e826e302fcdcbe9133f9b0006e5af7168afb8963a6520da103",
+                "sha256:4636de7fd195197b7535f231b5de9e4b36d2c440b6e566d2e4e4746e6af0ca93",
+                "sha256:4a19d9dba1a76618dd86b164d608566f393f8ec6ac7c44f0cc879011c45e65af",
+                "sha256:4bbc7f303d125971f60ec0aaad5e12c62d0d2c925f0ab1273debd0e4ba37aba5",
+                "sha256:4d6d57903571f86180eb98f8f0c839fa9ebbfb031356d87f1361be91e433f5b7",
+                "sha256:4e874c976154687c1f71715b034739b45c7711bec81db01914770373d125e392",
+                "sha256:51fc224f7ca4d92656d5a5eb315f12eb5fe2c97a66249aa7b5f562528a3be38c",
+                "sha256:58c8b5929fcb8287cbd6f0a3fae19c6e03a5c48402ae792962ac465224a629a4",
+                "sha256:5a285b3b96f951841799528cd1f4f01cd70e7e0204b4abebac9463eecfcf2a40",
+                "sha256:5c70f1cc1c4efbe316a572e2d8b9b9cc44e89b95f79ca3331553fbb63716e2bf",
+                "sha256:62d6b0f03b694173f9fcb1fb317f7222fd0b0b103e784c6549f5e53a27718c44",
+                "sha256:6a246d5914aa1c820c9443ddcee9c02bec3e203b0c080349533fae17727dfd1b",
+                "sha256:6aa3236c78803afbcb255045fbef97a9e25a1f6c9888357d205ddc42f4d6eba5",
+                "sha256:6bbe4eb67390b0a0265a2c25458f6b90a409d5d069f1041e6aff1e27e3d9a79e",
+                "sha256:715d1c092715954784bc79e1174fc2a90093dc4dc84ea15eb14dad8abdcdeb74",
+                "sha256:72944b19f2324114e9dc86a159787333b77874143efcf89a5167ef83cfee8af0",
+                "sha256:81f4a14bee47aec54f883e0cad2d73986640c1590eb9bfaaba7ad17394481e6e",
+                "sha256:846300f379b5b12cc769334464656bc882e0735d27d9726568bc932fdc49d5ec",
+                "sha256:86b6f55f5a352b48d7fbfd2dbc3d5b780b2d79f4d3c121f33eb6efb22e9a2015",
+                "sha256:874f200b2a981c647340f841730fc3a2b54c9d940566a3c4149099591e2c4c3d",
+                "sha256:8a87ec22c87be071b6bdbd27920b129b94f2fc964358ce38f3822635a3e2e03d",
+                "sha256:8b3b60bb7cba2c8c81837661c488637eee696f59a877788a396d33150c35d842",
+                "sha256:8e3ed142f2728df44263aaf5fb1f5b0b99f4070c553a0d7f033be65338329150",
+                "sha256:93e15038125dc1e5345d9b5b68aa7f996ec33b98118d18c6ca0d0b7d6198b7e8",
+                "sha256:989824e9faf85f96ec9c7761cd8d29c531ad857bfa1daa930cba85baaecf1a9a",
+                "sha256:99d838547ace2c4aace6c4f76e879ddfe02bb58a80c1549928477862b7a6d6ed",
+                "sha256:9b2aec6af35c113b05695ebb5749a787acd63cafc83086a05771d1e1cd1e555f",
+                "sha256:9c585a1790d5436a5374bac930dad6ed244c046ed91b2b2a3634eb2971d21008",
+                "sha256:a7164afb23be6e37ad90b2f10426149fd75aee07ca55653d2aa41e66c4ef697e",
+                "sha256:ac6b31e35612a26483e20750126d30d0941f949426974cace8e6b5c58a3657b0",
+                "sha256:ad2e2ef14e0b04e544ea2fa0a36463f847f113d314aa02e5b402fdf910ef309e",
+                "sha256:b268594bccac7d7cf5844c7732e3f20c50921d94e36d7ec9b79e9857694b1b2f",
+                "sha256:b5f0362dc928a6ecd9db58868fca5e48485205e3855957bdedea308f8672ea4a",
+                "sha256:ba1f4fc670ed79f876f70082eff4f9583c15fb9a4b89d6188412de4d18ae2f40",
+                "sha256:ba203255017337d39f89bdd58417f03c4426f12beed0440cfd933cb15f8669c7",
+                "sha256:c901b15172510173f5cb310eae652908340f8dede90fff9e3bf6c0d8dfd92f83",
+                "sha256:c9b39d38a9bd2ae1becd7eac1303d031c5c110ad31f2b319c6e7d98b135c934d",
+                "sha256:d2a8490669bfe99a233298348acc2d824d496dee0e66e31b66a6022c2ad74a5c",
+                "sha256:dddbbd259598d7240b18c9d87c56a9d2fb3b02fe266f49a7c101532e78c1d871",
+                "sha256:df3775294accfdd75f32c74ae39fcba920c9a378a2fc18a12b6820aa8c1fb502",
+                "sha256:e44319a2953c738205bf3354537979eaa3998ed673395b964c1176083dd46252",
+                "sha256:e4a010c27ff6f210ff4c6ef34394cd61470d01014439b192ec22552ee867f2a8",
+                "sha256:e823b8b6edc81e747526f70f71a9c0a07ac4e7ad13020aa736bb7c9d67196115",
+                "sha256:e892aff75639bbef0d2a2cfd55535510df26ff92f63c92cd84ef8d4ba5a5557f",
+                "sha256:eea7ac5d2dce4189771cedb559c738a71512768210dc4e4753b107a2048b3d0e",
+                "sha256:ef4059d6e5152fa1a39f888e344c73fdc926e1b2dd58c771d67b0acfbf2aa67d",
+                "sha256:f169b9a863d34f5d11b8698ead99febeaa17a13ca044961aa8e2662a6c7766a0",
+                "sha256:f2cf083b324a467e1ab358c105f6cad5ea950f50524668a80c486ff1db24e119",
+                "sha256:f8474c4241bc18b750be2abea9d7a9ec84f46ef861dbacf86a4f6e043401f79e",
+                "sha256:f983334aea213c99992053ede6168500e5f086ce74fbc4acc3f2b00f5762e9db",
+                "sha256:f9e75681b59ddaa5e659898085ae0eaea229d054f2ac0c7e563a62205a700121",
+                "sha256:fbc356aae7adf9e6336d336b9c8111d390a05df88f1805573ebb0807bd06fd1d",
+                "sha256:fcfe2045fd2e8f3cb0ce9d4ba6dba6333b8fa05bb8a4939c908cd43322d14c7e"
+            ],
+            "index": "pypi",
+            "markers": "python_version >= '3.11'",
+            "version": "==2.4.4"
+        },
         "outcome": {
             "hashes": [
                 "sha256:9dcf02e65f2971b80047b377468e72a268e15c0af3cf1238e6ff14f7f91143b8",
@@ -553,6 +642,7 @@
                 "sha256:c74a7a2adf861c04d002db713dd85f84beb242228e671280bf709d765b03672b"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.9'",
             "version": "==2.12.1"
         },
         "pyserial": {
@@ -671,6 +761,7 @@
                 "sha256:4e6d1ef462f3626a1f0a0a9c42dd93c63bad33f9f1c1937509b8c5c8718ab56a"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.10'",
             "version": "==2.33.1"
         },
         "rich": {
@@ -695,6 +786,7 @@
                 "sha256:bada5c08a989f812728a4b5bea884d8e91894e939a441cc3a025201ce718581e"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.10'",
             "version": "==4.43.0"
         },
         "sniffio": {
@@ -712,6 +804,19 @@
             ],
             "version": "==2.4.0"
         },
+        "sounddevice": {
+            "hashes": [
+                "sha256:05eb9fd6c54c38d67741441c19164c0dae8ce80453af2d8c4ad2e7823d15b722",
+                "sha256:1234cc9b4c9df97b6cbe748146ae0ec64dd7d6e44739e8e42eaa5b595313a103",
+                "sha256:22487b65198cb5bf2208755105b524f78ad173e5ab6b445bdab1c989f6698df3",
+                "sha256:30ff99f6c107f49d25ad16a45cacd8d91c25a1bcdd3e81a206b921a3a6405b1f",
+                "sha256:3861901ddd8230d2e0e8ae62ac320cdd4c688d81df89da036dcb812f757bb3e6",
+                "sha256:cfc6b2c49fb7f555591c78cb8ecf48d6a637fd5b6e1db5fec6ed9365d64b3519"
+            ],
+            "index": "pypi",
+            "markers": "python_version >= '3.7'",
+            "version": "==0.5.5"
+        },
         "tibs": {
             "hashes": [
                 "sha256:01ea5258bdf942d21560dc07d532082cd04f07cfef65fedd58ae84f7d0d2562a",
@@ -774,7 +879,9 @@
             "version": "==4.15.0"
         },
         "urllib3": {
-            "extras": [],
+            "extras": [
+                "socks"
+            ],
             "hashes": [
                 "sha256:1b62b6884944a57dbe321509ab94fd4d3b307075e0c2eae991ac71ee15ad38ed",
                 "sha256:bf272323e553dfb2e87d9bfd225ca7b0f467b919d7bbd355436d3fd37cb0acd4"
@@ -895,6 +1002,7 @@
                 "sha256:f9a2ae5c91cecc9edd47e041a930490c31c3afb1f5e6d71de3dc671bfaca02bf"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.9'",
             "version": "==1.1.1"
         },
         "websocket-client": {
@@ -970,6 +1078,7 @@
                 "sha256:fd3cb4adb94a2a6e2b7c0d8d05cb94e6f1c81a0cf9dc2694fb65c7e8d94c42e4"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.10'",
             "version": "==16.0"
         },
         "wsproto": {
@@ -1020,6 +1129,7 @@
                 "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c"
             ],
             "index": "pypi",
+            "markers": "python_version >= '3.10'",
             "version": "==9.0.3"
         }
     }

db/device.json

@@ -1 +0,0 @@
-{"188b0e1560a8": {"id": "188b0e1560a8", "name": "led-188b0e1560a8", "type": "led", "transport": "wifi", "address": "10.1.1.192", "default_pattern": null, "zones": []}, "f0f5bdfb9d30": {"id": "f0f5bdfb9d30", "name": "led-f0f5bdfb9d30", "type": "led", "transport": "wifi", "address": "10.1.1.232", "default_pattern": null, "zones": []}}

db/pattern.json

@@ -1 +1,291 @@
-{"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}, "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}, "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\u201330 s, -1=off)", "n4": "Spark gap max (ms)", "min_delay": 10, "max_delay": 10000, "max_colors": 10}, "twinkle": {"n1": "Twinkle activity (1\u2013255, higher = more changes)", "n2": "Density (0\u2013255, 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}, "radiate": {"n1": "Node spacing (LEDs)", "n2": "Out time (ms)", "n3": "In time (ms)", "min_delay": 10, "max_delay": 10000, "max_colors": 2}, "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}, "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}, "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}, "bar_graph": {"n1": "Level percent", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "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}, "rain_drops": {"n1": "Drop rate", "n2": "Ripple width", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "fireflies": {"n1": "Count", "n2": "Twinkle speed", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "clock_sweep": {"n1": "Hand width", "n2": "Marker interval", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "marquee": {"n1": "On length", "n2": "Off length", "n3": "Step", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "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}, "heartbeat": {"n1": "Pulse 1 ms", "n2": "Pulse 2 ms", "n3": "Pause ms", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "orbit": {"n1": "Orbit count", "n2": "Base speed", "max_colors": 10, "min_delay": 10, "max_delay": 10000}, "palette_morph": {"n1": "Morph ms", "n2": "Warp rate", "n3": "Turbulence", "max_colors": 10, "min_delay": 10, "max_delay": 10000}}
+{
+  "on": {
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 1,
+    "supports_manual": true
+  },
+  "off": {
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 0,
+    "supports_manual": true
+  },
+  "rainbow": {
+    "n1": "Step Rate",
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 0,
+    "supports_manual": true
+  },
+  "colour_cycle": {
+    "n1": "Step Rate",
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 10,
+    "supports_manual": true
+  },
+  "transition": {
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 10,
+    "supports_manual": false
+  },
+  "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,
+    "supports_manual": true
+  },
+  "pulse": {
+    "n1": "Attack",
+    "n2": "Hold",
+    "n3": "Decay",
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 10,
+    "has_background": true,
+    "supports_manual": 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,
+    "supports_manual": false
+  },
+  "blink": {
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 10,
+    "has_background": true,
+    "supports_manual": false
+  },
+  "flicker": {
+    "n1": "Min brightness",
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 10,
+    "supports_manual": true
+  },
+  "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,
+    "supports_manual": false
+  },
+  "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,
+    "supports_manual": false
+  },
+  "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,
+    "supports_manual": 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,
+    "supports_manual": true
+  },
+  "scanner": {
+    "n1": "Eye width",
+    "n2": "End pause (frames)",
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 10,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "gradient_scroll": {
+    "n1": "Scroll step rate",
+    "min_delay": 10,
+    "max_delay": 10000,
+    "max_colors": 10,
+    "supports_manual": true
+  },
+  "comet_dual": {
+    "n1": "Tail length",
+    "n2": "Speed",
+    "n3": "Gap",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "sparkle_trail": {
+    "n1": "Spark density",
+    "n2": "Decay",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "supports_manual": true
+  },
+  "wave": {
+    "n1": "Wavelength",
+    "n2": "Amplitude",
+    "n3": "Drift speed",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "supports_manual": false
+  },
+  "plasma": {
+    "n1": "Scale",
+    "n2": "Speed",
+    "n3": "Contrast",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "supports_manual": false
+  },
+  "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,
+    "supports_manual": true
+  },
+  "bar_graph": {
+    "n1": "Level percent",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": false
+  },
+  "breathing_dual": {
+    "n1": "Phase offset",
+    "n2": "Ease",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "supports_manual": false
+  },
+  "strobe_burst": {
+    "n1": "Burst count",
+    "n2": "Burst gap",
+    "n3": "Cooldown",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "rain_drops": {
+    "n1": "Drop rate",
+    "n2": "Ripple width",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "fireflies": {
+    "n1": "Count",
+    "n2": "Twinkle speed",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "clock_sweep": {
+    "n1": "Hand width",
+    "n2": "Marker interval",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "marquee": {
+    "n1": "On length",
+    "n2": "Off length",
+    "n3": "Step",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "aurora": {
+    "n1": "Band count",
+    "n2": "Shimmer",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "supports_manual": false
+  },
+  "snowfall": {
+    "n1": "Flake density",
+    "n2": "Fall speed",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": 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,
+    "supports_manual": true
+  },
+  "orbit": {
+    "n1": "Orbit count",
+    "n2": "Base speed",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "palette_morph": {
+    "n1": "Morph ms",
+    "n2": "Warp rate",
+    "n3": "Turbulence",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "supports_manual": false
+  }
+}

db/zone.json

@@ -1 +0,0 @@
-{"1": {"name": "default", "names": ["led-188b0e1560a8", "led-f0f5bdfb9d30"], "presets": [["4", "2", "7"], ["3", "14", "5"], ["8", "9", "1"], ["6", "38", "42"], ["39", "40", "41"], ["43", "44", "45"], ["46", "47", "48"], ["49", "50", "51"], ["52", "53", "54"], ["55", "56", "57"], ["58", "59", "60"], ["61", "62"]], "presets_flat": ["4", "2", "7", "3", "14", "5", "8", "9", "1", "6", "38", "42", "39", "40", "41", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "60", "61", "62"], "default_preset": "41"}, "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, "presets_flat": []}, "7": {"name": "dj", "names": ["dj"], "presets": [["34", "35", "36"]], "default_preset": "34", "presets_flat": ["34", "35", "36"]}, "8": {"name": "test", "names": ["led-188b0e1560a8"], "presets": [["1", "2", "3"], ["4", "5"]], "default_preset": "1", "presets_flat": ["1", "2", "3", "4", "5"]}}

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

src/controllers/pattern.py

@@ -367,6 +367,8 @@ async def create_driver_pattern(request):
     Body JSON:
       name, code (required),
       min_delay, max_delay, max_colors (optional numbers),
+      has_background (optional bool),
+      supports_manual (optional bool, default true if omitted in db),
       n1..n8 (optional string labels),
       overwrite (optional, default true).
     """
@@ -409,6 +411,12 @@ async def create_driver_pattern(request):
                 "Content-Type": "application/json"
             }
 
+    if "has_background" in data:
+        meta["has_background"] = bool(data.get("has_background"))
+
+    if "supports_manual" in data:
+        meta["supports_manual"] = bool(data.get("supports_manual"))
+
     for i in range(1, 9):
         nk = "n%d" % i
         if nk not in data:

src/controllers/preset.py

@@ -315,6 +315,13 @@ async def push_driver_messages(request, session):
     except Exception:
         return json.dumps({"error": "Send failed"}), 503, {'Content-Type': 'application/json'}
 
+    try:
+        from util.beat_driver_route import sync_beat_route_from_push_sequence
+
+        sync_beat_route_from_push_sequence(seq)
+    except Exception:
+        pass
+
     return json.dumps({
         "message": "Delivered",
         "deliveries": deliveries,

src/main.py

@@ -31,6 +31,7 @@ from util.device_status_broadcaster import (
     register_device_status_ws,
     unregister_device_status_ws,
 )
+from util.audio_detector import AudioBeatDetector
 
 _tcp_device_lock = threading.Lock()
 
@@ -246,6 +247,10 @@ async def main(port=80):
     set_sender(sender)
 
     app = Microdot()
+    audio_detector = AudioBeatDetector()
+    from util import beat_driver_route
+
+    beat_driver_route.set_beat_route_main_loop(asyncio.get_running_loop())
     
     # Initialize sessions with a secret key from settings
     secret_key = settings.get('session_secret_key', 'led-controller-secret-key-change-in-production')
@@ -290,6 +295,45 @@ async def main(port=80):
     def favicon(request):
         return '', 204
 
+    @app.route('/api/audio/devices')
+    async def audio_devices(request):
+        _ = request
+        try:
+            return {
+                "devices": audio_detector.list_input_devices(),
+                "diagnostics": audio_detector.diagnostics(),
+            }
+        except Exception as e:
+            return {"error": str(e)}, 500
+
+    @app.route('/api/audio/start', methods=['POST'])
+    async def audio_start(request):
+        payload = request.json if isinstance(request.json, dict) else {}
+        device = payload.get("device", None)
+        if device in ("", None):
+            device = None
+        else:
+            try:
+                device = int(device)
+            except (TypeError, ValueError):
+                pass
+        try:
+            audio_detector.start(device=device)
+            return {"ok": True, "status": audio_detector.status()}
+        except Exception as e:
+            return {"ok": False, "error": str(e)}, 500
+
+    @app.route('/api/audio/stop', methods=['POST'])
+    async def audio_stop(request):
+        _ = request
+        audio_detector.stop()
+        return {"ok": True, "status": audio_detector.status()}
+
+    @app.route('/api/audio/status')
+    async def audio_status(request):
+        _ = request
+        return {"status": audio_detector.status()}
+
     # Static file route
     @app.route("/static/<path:path>")
     def static_handler(request, path):
@@ -348,6 +392,10 @@ async def main(port=80):
     def _graceful_shutdown(*_args):
         print("[server] shutting down...")
         udp_holder["closing"] = True
+        try:
+            audio_detector.stop()
+        except Exception:
+            pass
         u = udp_holder.get("sock")
         if u is not None:
             try:
@@ -383,6 +431,10 @@ async def main(port=80):
                 )
             raise
     finally:
+        try:
+            audio_detector.stop()
+        except Exception:
+            pass
         srv = getattr(app, "server", None)
         if srv is not None:
             try:

src/models/preset.py

@@ -26,6 +26,7 @@ class Preset(Model):
             "name": "",
             "pattern": "",
             "colors": [],
+            "background": "#000000",
             "brightness": 0,
             "delay": 0,
             "n1": 0,
@@ -36,6 +37,7 @@ class Preset(Model):
             "n6": 0,
             "n7": 0,
             "n8": 0,
+            "manual_beat_n": 1,
             "profile_id": str(profile_id) if profile_id is not None else None,
         }
         self.save()

src/models/wifi_ws_clients.py

@@ -124,15 +124,6 @@ def _register_ws(ip: str, ws) -> None:
         _send_locks[key] = asyncio.Lock()
     _schedule_status_broadcast(key, True)
     print(f"[WS] driver connected {key!r}")
-    try:
-        loop = asyncio.get_running_loop()
-    except RuntimeError:
-        return
-
-    async def _apply_saved_brightness():
-        await sync_global_brightness_to_driver(key)
-
-    loop.create_task(_apply_saved_brightness())
 
 
 def unregister_tcp_writer(peer_ip: str, ws=None) -> str:

src/models/zone.py

@@ -34,6 +34,7 @@ class Zone(Model):
             "names": names if names else [],
             "presets": presets if presets else [],
             "default_preset": None,
+            "brightness": 255,
         }
         self.save()
         return next_id

src/static/audio.js

@@ -0,0 +1,218 @@
+(() => {
+  let pollTimer = null;
+  let lastBeatSeq = 0;
+
+  function el(id) {
+    return document.getElementById(id);
+  }
+
+  function updateBpmDisplay(bpm) {
+    const node = el("audio-bpm-value");
+    if (!node) return;
+    node.textContent = Number.isFinite(bpm) ? bpm.toFixed(1) : "--";
+    const topNode = el("audio-top-bpm-value");
+    if (topNode) {
+      topNode.textContent = Number.isFinite(bpm) ? bpm.toFixed(1) : "--";
+    }
+  }
+
+  function updateBeatCounter(seq) {
+    const topNode = el("audio-top-beat-count");
+    if (!topNode) return;
+    const n = Number(seq);
+    topNode.textContent = Number.isFinite(n) && n >= 0 ? `#${Math.floor(n)}` : "#0";
+  }
+
+  function updateHitTypeDisplay(hitType, confidence) {
+    const node = el("audio-hit-type-value");
+    if (!node) return;
+    const label = String(hitType || "unknown").toLowerCase();
+    const conf = Number.isFinite(confidence) ? ` (${confidence.toFixed(2)})` : "";
+    node.textContent = `${label}${conf}`;
+  }
+
+  function flashBeat() {
+    const node = el("audio-beat-flash");
+    if (!node) return;
+    node.classList.add("active");
+    setTimeout(() => node.classList.remove("active"), 80);
+    const top = el("audio-top-indicator");
+    if (top) {
+      top.classList.add("flash");
+      setTimeout(() => top.classList.remove("flash"), 90);
+    }
+  }
+
+  async function stopAudio() {
+    if (pollTimer) {
+      clearInterval(pollTimer);
+      pollTimer = null;
+    }
+    lastBeatSeq = 0;
+    updateBeatCounter(0);
+    try {
+      await fetch("/api/audio/stop", { method: "POST" });
+    } catch (e) {
+      console.warn("audio stop failed", e);
+    }
+  }
+
+  async function pollStatus() {
+    try {
+      const res = await fetch("/api/audio/status");
+      const data = await res.json();
+      const status = data?.status || {};
+      if (status.error && String(status.error).trim()) {
+        const node = el("audio-hit-type-value");
+        if (node) {
+          node.textContent = String(status.error).trim().slice(0, 120);
+        }
+        updateBpmDisplay(null);
+        if (!status.running && pollTimer) {
+          clearInterval(pollTimer);
+          pollTimer = null;
+        }
+        return;
+      }
+      updateBpmDisplay(status.bpm);
+      updateHitTypeDisplay(status.beat_type, Number(status.beat_type_confidence));
+      const seq = Number(status.beat_seq || 0);
+      updateBeatCounter(seq);
+      if (seq > lastBeatSeq) {
+        lastBeatSeq = seq;
+        flashBeat();
+      }
+    } catch (e) {
+      console.warn("audio status poll failed", e);
+    }
+  }
+
+  async function startAudio() {
+    await stopAudio();
+    const override = (el("audio-device-override")?.value || "").trim();
+    const selected = el("audio-device-select")?.value || "";
+    const rawDevice = override !== "" ? override : selected;
+    const numeric = rawDevice !== "" && /^-?\d+$/.test(rawDevice) ? Number(rawDevice) : rawDevice;
+    const body = { device: rawDevice === "" ? null : numeric };
+    const res = await fetch("/api/audio/start", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(body),
+    });
+    if (!res.ok) {
+      const data = await res.json().catch(() => ({}));
+      throw new Error(data.error || "Failed to start audio detector");
+    }
+    updateBpmDisplay(null);
+    updateHitTypeDisplay("unknown", NaN);
+    updateBeatCounter(0);
+    pollTimer = setInterval(pollStatus, 250);
+    await pollStatus();
+  }
+
+  async function refreshDevices() {
+    const select = el("audio-device-select");
+    const debug = el("audio-devices-debug");
+    if (!select) return;
+    const current = select.value;
+    const res = await fetch("/api/audio/devices");
+    const data = await res.json();
+    const inputs = Array.isArray(data?.devices) ? data.devices.slice() : [];
+    if (debug) {
+      debug.value = JSON.stringify(data?.diagnostics || data, null, 2);
+    }
+    inputs.sort((a, b) => {
+      const am = String(a?.name || "").toLowerCase().includes("monitor");
+      const bm = String(b?.name || "").toLowerCase().includes("monitor");
+      if (am !== bm) return am ? -1 : 1;
+      return Number(a?.id || 0) - Number(b?.id || 0);
+    });
+    select.innerHTML = '<option value="">System default input</option>';
+    let defaultId = "";
+    inputs.forEach((d, idx) => {
+      const option = document.createElement("option");
+      option.value = String(d.id);
+      option.textContent = d.label || d.name || `Input ${idx + 1}`;
+      if (d.is_default) {
+        defaultId = String(d.id);
+      }
+      select.appendChild(option);
+    });
+    if (current) {
+      select.value = current;
+    } else if (defaultId) {
+      select.value = defaultId;
+    }
+  }
+
+  function bind() {
+    const modal = el("audio-modal");
+    const openBtn = el("audio-btn");
+    const closeBtn = el("audio-close-btn");
+    const startBtn = el("audio-start-btn");
+    const stopBtn = el("audio-stop-btn");
+    const refreshBtn = el("audio-refresh-btn");
+    if (!modal || !openBtn) return;
+
+    openBtn.addEventListener("click", async () => {
+      modal.classList.add("active");
+      try {
+        await refreshDevices();
+      } catch (e) {
+        console.warn("audio device refresh failed", e);
+      }
+    });
+    if (closeBtn) {
+      closeBtn.addEventListener("click", () => {
+        modal.classList.remove("active");
+      });
+    }
+    if (startBtn) {
+      startBtn.addEventListener("click", async () => {
+        try {
+          await startAudio();
+          await refreshDevices();
+        } catch (e) {
+          console.error("audio start failed", e);
+          alert("Failed to start audio input. Check mic permissions.");
+        }
+      });
+    }
+    if (stopBtn) {
+      stopBtn.addEventListener("click", async () => {
+        await stopAudio();
+      });
+    }
+    if (refreshBtn) {
+      refreshBtn.addEventListener("click", async () => {
+        try {
+          await refreshDevices();
+        } catch (e) {
+          console.error("refresh devices failed", e);
+        }
+      });
+    }
+
+  }
+
+  async function resumePollingIfDetectorRunning() {
+    try {
+      const res = await fetch("/api/audio/status");
+      const data = await res.json();
+      const status = data?.status || {};
+      if (status.running && !pollTimer) {
+        pollTimer = setInterval(pollStatus, 250);
+        lastBeatSeq = Number(status.beat_seq || 0);
+        updateBeatCounter(lastBeatSeq);
+        await pollStatus();
+      }
+    } catch (e) {
+      console.warn("audio resume poll check failed", e);
+    }
+  }
+
+  document.addEventListener("DOMContentLoaded", () => {
+    bind();
+    resumePollingIfDetectorRunning();
+  });
+})();

src/static/patterns.js

@@ -33,6 +33,33 @@ document.addEventListener('DOMContentLoaded', () => {
     return Number.isFinite(t) ? t : def;
   };
 
+  const coercePresetAuto = (preset) => {
+    if (!preset || typeof preset !== 'object') {
+      return true;
+    }
+    const v =
+      preset.auto !== undefined && preset.auto !== null ? preset.auto : preset.a;
+    if (typeof v === 'boolean') {
+      return v;
+    }
+    if (v === 0 || v === '0') {
+      return false;
+    }
+    if (v === 1 || v === '1') {
+      return true;
+    }
+    if (typeof v === 'string') {
+      const l = v.trim().toLowerCase();
+      if (['false', '0', 'no', 'off'].includes(l)) {
+        return false;
+      }
+      if (['true', '1', 'yes', 'on'].includes(l)) {
+        return true;
+      }
+    }
+    return true;
+  };
+
   const getCurrentProfileId = async () => {
     try {
       const response = await fetch('/profiles/current', { headers: { Accept: 'application/json' } });
@@ -531,6 +558,7 @@ document.addEventListener('DOMContentLoaded', () => {
           const colors = Array.isArray(preset.colors) && preset.colors.length
             ? preset.colors
             : ['#FFFFFF'];
+          const presetAuto = coercePresetAuto(preset);
           wirePresets[presetId] = {
             pattern: preset.pattern || 'off',
             colors,
@@ -538,7 +566,8 @@ document.addEventListener('DOMContentLoaded', () => {
             brightness: typeof preset.brightness === 'number'
               ? preset.brightness
               : (typeof preset.br === 'number' ? preset.br : 127),
-            auto: typeof preset.auto === 'boolean' ? preset.auto : true,
+            auto: presetAuto,
+            a: presetAuto,
             n1: coercePresetInt(preset.n1),
             n2: coercePresetInt(preset.n2),
             n3: coercePresetInt(preset.n3),

src/static/presets.js

@@ -190,6 +190,14 @@ document.addEventListener('DOMContentLoaded', () => {
   const presetNewColorInput = document.getElementById('preset-new-color');
   const presetBrightnessInput = document.getElementById('preset-brightness-input');
   const presetDelayInput = document.getElementById('preset-delay-input');
+  const presetDelayField = presetDelayInput ? presetDelayInput.closest('.preset-editor-field') : null;
+  const presetBackgroundInput = document.getElementById('preset-background-input');
+  const presetBackgroundButton = document.getElementById('preset-background-btn');
+  const presetManualModeInput = document.getElementById('preset-manual-mode-input');
+  const presetManualModeHint = document.getElementById('preset-manual-mode-hint');
+  const presetManualModeLabel = document.getElementById('preset-manual-mode-label');
+  const presetManualBeatNWrap = document.getElementById('preset-manual-beat-n-wrap');
+  const presetManualBeatNInput = document.getElementById('preset-manual-beat-n-input');
   const presetDefaultButton = document.getElementById('preset-default-btn');
   const presetRemoveFromTabButton = document.getElementById('preset-remove-from-zone-btn');
   const presetSaveButton = document.getElementById('preset-save-btn');
@@ -219,6 +227,100 @@ document.addEventListener('DOMContentLoaded', () => {
     return Infinity; // No limit if not specified
   };
 
+  const resolvePatternConfig = (patternName) => {
+    const rawPatternName = String(patternName || '').trim();
+    const normalizedPatternName = rawPatternName.endsWith('.py')
+      ? rawPatternName.slice(0, -3)
+      : rawPatternName;
+    let patternConfig =
+      (cachedPatterns && cachedPatterns[rawPatternName]) ||
+      (cachedPatterns && cachedPatterns[normalizedPatternName]) ||
+      null;
+    if (!patternConfig && cachedPatterns && typeof cachedPatterns === 'object') {
+      const lower = normalizedPatternName.toLowerCase();
+      const matchedKey = Object.keys(cachedPatterns).find(
+        (k) => String(k).toLowerCase() === lower,
+      );
+      if (matchedKey) {
+        patternConfig = cachedPatterns[matchedKey];
+      }
+    }
+    if (patternConfig && typeof patternConfig === 'object' && patternConfig.data && typeof patternConfig.data === 'object') {
+      patternConfig = patternConfig.data;
+    }
+    if (
+      patternConfig &&
+      typeof patternConfig === 'object' &&
+      patternConfig.parameter_mappings &&
+      typeof patternConfig.parameter_mappings === 'object'
+    ) {
+      patternConfig = patternConfig.parameter_mappings;
+    }
+    return patternConfig && typeof patternConfig === 'object' ? patternConfig : null;
+  };
+
+  /** From db/pattern.json; missing key means pattern allows manual / beat (backward compatible). */
+  const patternSupportsManual = (patternName) => {
+    const cfg = resolvePatternConfig(patternName);
+    if (!cfg) {
+      return true;
+    }
+    return cfg.supports_manual !== false;
+  };
+
+  const updateManualBeatNVisibility = () => {
+    if (!presetManualBeatNWrap) {
+      return;
+    }
+    const manualOn = presetManualModeInput && presetManualModeInput.checked;
+    const patternName = presetPatternInput ? presetPatternInput.value.trim() : '';
+    const ok = !patternName || patternSupportsManual(patternName);
+    presetManualBeatNWrap.style.display = manualOn && ok ? '' : 'none';
+  };
+
+  const updatePresetBackgroundButton = () => {
+    if (!presetBackgroundButton || !presetBackgroundInput) return;
+    const color = coercePresetBackground({ background: presetBackgroundInput.value });
+    presetBackgroundInput.value = color;
+    presetBackgroundButton.textContent = color;
+    presetBackgroundButton.style.backgroundColor = color;
+    presetBackgroundButton.style.color = '#fff';
+    presetBackgroundButton.style.borderColor = 'rgba(255, 255, 255, 0.6)';
+  };
+
+  const updateDelayVisibilityForManualMode = () => {
+    if (!presetDelayField) return;
+    const manualOn = presetManualModeInput && presetManualModeInput.checked;
+    presetDelayField.style.display = manualOn ? 'none' : '';
+  };
+
+  const updateManualModeAvailability = () => {
+    if (!presetManualModeInput) {
+      return;
+    }
+    const patternName = presetPatternInput ? presetPatternInput.value.trim() : '';
+    const ok = !patternName || patternSupportsManual(patternName);
+    presetManualModeInput.disabled = !ok;
+    if (presetManualModeLabel) {
+      presetManualModeLabel.style.opacity = ok ? '' : '0.55';
+    }
+    if (presetManualModeHint) {
+      if (!patternName || ok) {
+        presetManualModeHint.style.display = 'none';
+        presetManualModeHint.textContent = '';
+      } else {
+        presetManualModeHint.style.display = '';
+        presetManualModeHint.textContent =
+          'This pattern is a poor fit for manual mode or audio beat triggers; use auto mode for best results.';
+      }
+    }
+    if (!ok) {
+      presetManualModeInput.checked = false;
+    }
+    updateManualBeatNVisibility();
+    updateDelayVisibilityForManualMode();
+  };
+
   // Function to show/hide color section based on max_colors
   const updateColorSectionVisibility = () => {
     const maxColors = getMaxColors();
@@ -296,7 +398,7 @@ document.addEventListener('DOMContentLoaded', () => {
     }
     
     const swatchContainer = document.createElement('div');
-    swatchContainer.style.cssText = 'display: flex; flex-wrap: wrap; gap: 0.5rem;';
+    swatchContainer.style.cssText = 'display: flex; flex-wrap: nowrap; gap: 0.5rem; align-items: flex-start; overflow-x: auto;';
     swatchContainer.classList.add('color-swatches-container');
     
     currentPresetColors.forEach((color, index) => {
@@ -492,11 +594,26 @@ document.addEventListener('DOMContentLoaded', () => {
     presetNameInput.value = preset.name || '';
     const patternName = preset.pattern || '';
     presetPatternInput.value = patternName;
-    const colors = Array.isArray(preset.colors) ? preset.colors : [];
+    const colors = Array.isArray(preset.colors) ? preset.colors.slice() : [];
-    const paletteRefs = Array.isArray(preset.palette_refs) ? preset.palette_refs : [];
+    const paletteRefs = Array.isArray(preset.palette_refs) ? preset.palette_refs.slice() : [];
     renderPresetColors(colors, paletteRefs);
     presetBrightnessInput.value = preset.brightness || 0;
     presetDelayInput.value = preset.delay || 0;
+    if (presetBackgroundInput) {
+      presetBackgroundInput.value = coercePresetBackground(preset);
+    }
+    updatePresetBackgroundButton();
+    if (presetManualModeInput) {
+      const autoVal = typeof preset.auto === 'boolean' ? preset.auto : true;
+      presetManualModeInput.checked = !autoVal;
+    }
+    if (presetManualBeatNInput) {
+      const raw = preset.manual_beat_n;
+      let n = typeof raw === 'number' ? raw : parseInt(String(raw != null ? raw : '1'), 10);
+      if (!Number.isFinite(n)) n = 1;
+      n = Math.max(1, Math.min(64, n));
+      presetManualBeatNInput.value = String(n);
+    }
 
     // Update color section visibility based on pattern
     updateColorSectionVisibility();
@@ -552,6 +669,7 @@ document.addEventListener('DOMContentLoaded', () => {
 
     // After values: show only mapped n params with labels from pattern.json; clear hidden inputs
     updatePresetNLabels(patternName);
+    updateManualModeAvailability();
     updatePresetEditorTabActionsVisibility();
   };
 
@@ -574,7 +692,21 @@ document.addEventListener('DOMContentLoaded', () => {
       n6: 0,
       n7: 0,
       n8: 0,
+      background: '#000000',
+      auto: true,
+      manual_beat_n: 1,
     });
+    if (presetManualModeInput) {
+      presetManualModeInput.checked = false;
+    }
+    if (presetManualBeatNInput) {
+      presetManualBeatNInput.value = '1';
+    }
+    if (presetBackgroundInput) {
+      presetBackgroundInput.value = '#000000';
+    }
+    updatePresetBackgroundButton();
+    updateManualModeAvailability();
     // Re-enable name and pattern when clearing (for new preset)
     if (presetNameInput) {
       presetNameInput.disabled = false;
@@ -652,6 +784,14 @@ document.addEventListener('DOMContentLoaded', () => {
       // Use canonical field names expected by the device / API
       brightness: presetBrightnessInput ? parseInt(presetBrightnessInput.value, 10) || 0 : 0,
       delay: presetDelayInput ? parseInt(presetDelayInput.value, 10) || 0 : 0,
+      background: presetBackgroundInput ? presetBackgroundInput.value : '#000000',
+      auto: presetManualModeInput ? !presetManualModeInput.checked : true,
+      manual_beat_n: (() => {
+        if (!presetManualBeatNInput) return 1;
+        let n = parseInt(presetManualBeatNInput.value, 10);
+        if (!Number.isFinite(n)) n = 1;
+        return Math.max(1, Math.min(64, n));
+      })(),
     };
 
     // Always store numeric parameters as n1..n8.
@@ -812,6 +952,7 @@ document.addEventListener('DOMContentLoaded', () => {
     if (nGrid) {
       nGrid.style.display = visibleNKeys.size > 0 ? '' : 'none';
     }
+    updateManualModeAvailability();
   };
 
   const renderPresets = (presets) => {
@@ -1185,6 +1326,21 @@ document.addEventListener('DOMContentLoaded', () => {
       updateColorSectionVisibility();
       // Re-render colors to show updated max colors limit
       renderPresetColors(currentPresetColors, currentPresetPaletteRefs);
+      updateManualModeAvailability();
+    });
+  }
+  if (presetManualModeInput) {
+    presetManualModeInput.addEventListener('change', () => {
+      updateManualBeatNVisibility();
+      updateDelayVisibilityForManualMode();
+    });
+  }
+  if (presetBackgroundButton && presetBackgroundInput) {
+    presetBackgroundButton.addEventListener('click', () => {
+      presetBackgroundInput.click();
+    });
+    presetBackgroundInput.addEventListener('input', () => {
+      updatePresetBackgroundButton();
     });
   }
   // Color picker auto-add handler
@@ -1417,6 +1573,65 @@ const coercePresetInt = (v, def = 0) => {
   return Number.isFinite(t) ? t : def;
 };
 
+/** Device field ``a`` / API ``auto``; missing → auto-run (matches server build_preset_dict). */
+const coercePresetAuto = (preset) => {
+  if (!preset || typeof preset !== 'object') {
+    return true;
+  }
+  const v =
+    preset.auto !== undefined && preset.auto !== null ? preset.auto : preset.a;
+  if (typeof v === 'boolean') {
+    return v;
+  }
+  if (v === 0 || v === '0') {
+    return false;
+  }
+  if (v === 1 || v === '1') {
+    return true;
+  }
+  if (typeof v === 'string') {
+    const l = v.trim().toLowerCase();
+    if (['false', '0', 'no', 'off'].includes(l)) {
+      return false;
+    }
+    if (['true', '1', 'yes', 'on'].includes(l)) {
+      return true;
+    }
+  }
+  return true;
+};
+
+/** Preset background colour; accepts #RRGGBB or [r,g,b]. */
+const coercePresetBackground = (preset) => {
+  if (!preset || typeof preset !== 'object') {
+    return '#000000';
+  }
+  const raw = preset.background !== undefined && preset.background !== null ? preset.background : preset.bg;
+  if (typeof raw === 'string') {
+    const s = raw.trim();
+    if (/^#[0-9a-fA-F]{6}$/.test(s)) {
+      return s.toUpperCase();
+    }
+  }
+  if (Array.isArray(raw) && raw.length === 3) {
+    const r = coercePresetInt(raw[0], 0);
+    const g = coercePresetInt(raw[1], 0);
+    const b = coercePresetInt(raw[2], 0);
+    const clamp = (n) => Math.max(0, Math.min(255, n));
+    return `#${clamp(r).toString(16).padStart(2, '0')}${clamp(g).toString(16).padStart(2, '0')}${clamp(b).toString(16).padStart(2, '0')}`.toUpperCase();
+  }
+  return '#000000';
+};
+
+/** Audio beat stride for manual presets (led-controller only; firmware ignores this key). */
+const coerceManualBeatN = (preset) => {
+  if (!preset || typeof preset !== 'object') return 1;
+  const raw = preset.manual_beat_n;
+  let n = typeof raw === 'number' ? raw : parseInt(String(raw != null ? raw : '1'), 10);
+  if (!Number.isFinite(n)) n = 1;
+  return Math.max(1, Math.min(64, n));
+};
+
 // Build driver messages for a single preset; deliver via /presets/push (ESP-NOW + TCP).
 // Send order:
 // 1) preset payload (optionally with save)
@@ -1438,23 +1653,28 @@ const sendPresetViaEspNow = async (
     const colors = resolveColorsWithPaletteRefs(baseColors, preset.palette_refs, paletteColors);
 
     const wirePresetId = devicePresetId != null ? String(devicePresetId) : String(presetId);
+    const presetAuto = coercePresetAuto(preset);
+    const presetBackground = coercePresetBackground(preset);
     const presetMessage = {
       v: '1',
       presets: {
         [wirePresetId]: {
           pattern: preset.pattern || 'off',
           colors,
+          bg: presetBackground,
           delay: typeof preset.delay === 'number' ? preset.delay : 100,
           brightness: typeof preset.brightness === 'number'
             ? preset.brightness
             : (typeof preset.br === 'number' ? preset.br : 127),
-          auto: typeof preset.auto === 'boolean' ? preset.auto : true,
+          auto: presetAuto,
+          a: presetAuto,
           n1: coercePresetInt(preset.n1),
           n2: coercePresetInt(preset.n2),
           n3: coercePresetInt(preset.n3),
           n4: coercePresetInt(preset.n4),
           n5: coercePresetInt(preset.n5),
           n6: coercePresetInt(preset.n6),
+          manual_beat_n: coerceManualBeatN(preset),
         },
       },
     };
@@ -1520,6 +1740,29 @@ const sendDefaultPreset = async (presetId, deviceNames) => {
   }
 };
 
+const sendPresetSelectViaEspNow = async (presetId, deviceNames) => {
+  if (!presetId) {
+    return;
+  }
+  const nameTargets = Array.isArray(deviceNames)
+    ? deviceNames.map((n) => (n || '').trim()).filter((n) => n.length > 0)
+    : [];
+  if (!nameTargets.length) {
+    return;
+  }
+  const select = {};
+  nameTargets.forEach((name) => {
+    select[name] = [String(presetId)];
+  });
+  const macTargets =
+    nameTargets.length > 0 &&
+    typeof window.tabsManager !== 'undefined' &&
+    typeof window.tabsManager.resolveTabDeviceMacs === 'function'
+      ? await window.tabsManager.resolveTabDeviceMacs(nameTargets)
+      : [];
+  await postDriverSequence([{ v: '1', select }], macTargets);
+};
+
 // Expose for other scripts (zones.js) so they can reuse the shared WebSocket.
 try {
   window.sendPresetViaEspNow = sendPresetViaEspNow;
@@ -1534,6 +1777,8 @@ try {
 
 // Store selected preset per zone
 const selectedPresets = {};
+// Store selected preset payload per zone for beat-trigger reliability.
+const selectedPresetPayloads = {};
 // Run vs Edit for zone preset strip (in-memory only — each full page load starts in run mode)
 let presetUiMode = 'run';
 
@@ -1823,6 +2068,7 @@ const createPresetButton = (presetId, preset, zoneId, isSelected = false) => {
   button.className = 'pattern-button preset-tile-main';
   if (isSelected) {
     button.classList.add('active');
+    selectedPresetPayloads[zoneId] = preset;
   }
 
   const colors = Array.isArray(preset.colors) ? preset.colors.filter((c) => c) : [];
@@ -1846,6 +2092,49 @@ const createPresetButton = (presetId, preset, zoneId, isSelected = false) => {
   presetNameLabel.className = 'pattern-button-label';
   button.appendChild(presetNameLabel);
 
+  const bgSwatch = document.createElement('span');
+  const bgColor = coercePresetBackground(preset);
+  bgSwatch.title = `Background: ${bgColor}`;
+  bgSwatch.style.cssText = `
+    position: absolute;
+    left: 4px;
+    bottom: 4px;
+    width: 12px;
+    height: 12px;
+    border-radius: 2px;
+    background: ${bgColor};
+    border: 1px solid rgba(255, 255, 255, 0.7);
+    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5);
+    pointer-events: none;
+    z-index: 2;
+  `;
+  button.appendChild(bgSwatch);
+
+  const isManualPreset = preset && typeof preset.auto === 'boolean' ? !preset.auto : false;
+  if (isManualPreset) {
+    const manualBadge = document.createElement('span');
+    manualBadge.textContent = '1';
+    manualBadge.title = 'Manual preset';
+    manualBadge.style.cssText = `
+      position: absolute;
+      right: 4px;
+      bottom: 4px;
+      min-width: 16px;
+      height: 16px;
+      border-radius: 8px;
+      background: rgba(0, 0, 0, 0.72);
+      color: #fff;
+      border: 1px solid rgba(255, 255, 255, 0.5);
+      font-size: 11px;
+      font-weight: 700;
+      line-height: 14px;
+      text-align: center;
+      pointer-events: none;
+      z-index: 2;
+    `;
+    button.appendChild(manualBadge);
+  }
+
   button.addEventListener('click', () => {
     if (isDraggingPreset) return;
     const presetsListEl = document.getElementById('presets-list-zone');
@@ -1854,6 +2143,7 @@ const createPresetButton = (presetId, preset, zoneId, isSelected = false) => {
     }
     button.classList.add('active');
     selectedPresets[zoneId] = presetId;
+    selectedPresetPayloads[zoneId] = preset;
     const section = row.closest('.presets-section');
     const deviceNames = tabDeviceNamesFromSection(section);
     sendPresetViaEspNow(presetId, preset, deviceNames, false, false, '2').catch((err) => {

src/static/style.css

@@ -105,6 +105,17 @@ header h1 {
     font-weight: 600;
 }
 
+/* BPM + desktop actions + mobile menu share one row; BPM stays visible on mobile. */
+.header-end {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    flex-wrap: nowrap;
+    justify-content: flex-end;
+    margin-left: auto;
+    min-width: 0;
+}
+
 .header-actions {
     display: flex;
     gap: 0.5rem;
@@ -115,6 +126,7 @@ header h1 {
 .header-menu-mobile {
     display: none;
     position: relative;
+    align-items: center;
 }
 
 .main-menu-dropdown {
@@ -183,6 +195,49 @@ header h1 {
     width: 8.5rem;
 }
 
+.audio-top-indicator {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.4rem;
+    padding: 0.25rem 0.55rem;
+    border: 1px solid #4a4a4a;
+    border-radius: 6px;
+    background-color: #1a1a1a;
+    min-width: 6.5rem;
+}
+
+.audio-top-indicator-label {
+    font-size: 0.72rem;
+    color: #bdbdbd;
+    letter-spacing: 0.05em;
+}
+
+.audio-top-indicator-value {
+    font-size: 1rem;
+    font-weight: 700;
+    color: #ffd54f;
+    min-width: 2.4rem;
+    text-align: right;
+}
+
+.audio-top-indicator-subvalue {
+    font-size: 0.75rem;
+    color: #9e9e9e;
+    min-width: 2.2rem;
+    text-align: right;
+}
+
+.audio-top-indicator.flash {
+    background-color: #ff5252;
+    border-color: #ff8a80;
+}
+
+.audio-top-indicator.flash .audio-top-indicator-value,
+.audio-top-indicator.flash .audio-top-indicator-label,
+.audio-top-indicator.flash .audio-top-indicator-subvalue {
+    color: #fff;
+}
+
 /* Header/menu actions that should only appear in Edit mode */
 body.preset-ui-run .edit-mode-only {
     display: none !important;
@@ -550,14 +605,14 @@ body.preset-ui-run .edit-mode-only {
     padding: 0;
 }
 
-/* Zone preset selecting area: 3 columns, vertical scroll only */
+/* Zone preset selecting area: 8 columns on desktop, vertical scroll only */
 #presets-list-zone {
     flex: 1;
     min-height: 0;
     overflow-y: auto;
     overflow-x: hidden;
     display: grid;
-    grid-template-columns: repeat(3, minmax(0, 1fr));
+    grid-template-columns: repeat(8, minmax(0, 1fr));
     grid-auto-rows: 5rem;
     column-gap: 0.3rem;
     row-gap: 0.3rem;
@@ -710,6 +765,46 @@ body.preset-ui-run .edit-mode-only {
     display: block;
 }
 
+.audio-bpm-readout {
+    font-size: 2rem;
+    font-weight: 700;
+    letter-spacing: 0.05em;
+    color: #ffd54f;
+    text-align: center;
+    padding: 0.4rem;
+    background-color: #1a1a1a;
+    border: 1px solid #4a4a4a;
+    border-radius: 6px;
+}
+
+.audio-hit-type-readout {
+    font-size: 1.1rem;
+    font-weight: 600;
+    letter-spacing: 0.04em;
+    color: #81d4fa;
+    text-transform: lowercase;
+    text-align: center;
+    padding: 0.35rem;
+    background-color: #1a1a1a;
+    border: 1px solid #4a4a4a;
+    border-radius: 6px;
+}
+
+.audio-beat-flash {
+    width: 100%;
+    height: 56px;
+    border-radius: 6px;
+    border: 1px solid #4a4a4a;
+    background: #202020;
+    box-shadow: inset 0 0 0 0 rgba(255, 82, 82, 0.5);
+    transition: background-color 80ms linear, box-shadow 120ms linear;
+}
+
+.audio-beat-flash.active {
+    background: #ff5252;
+    box-shadow: inset 0 0 24px 6px rgba(255, 255, 255, 0.35);
+}
+
 .patterns-list {
     display: flex;
     flex-direction: column;
@@ -1003,9 +1098,23 @@ body.preset-ui-run .edit-mode-only {
     }
 
     .header-menu-mobile {
-        display: block;
+        display: flex;
+        flex-direction: row;
+        align-items: center;
+        gap: 0.35rem;
         margin-top: 0;
-        margin-left: auto;
+        margin-left: 0;
+    }
+
+    .header-end {
+        gap: 0.35rem;
+        flex-shrink: 0;
+    }
+
+    .header-end .audio-top-indicator {
+        min-width: 5rem;
+        padding: 0.2rem 0.45rem;
+        flex-shrink: 0;
     }
 
     .btn {
@@ -1261,8 +1370,8 @@ body.preset-ui-run .edit-mode-only {
 .color-swatches-container {
     min-height: 80px;
 }
-/* Presets list: 3 columns and vertical scroll (defined above); mobile same */
+/* Presets list: 3 columns on phone-sized screens */
-@media (max-width: 1000px) {
+@media (max-width: 600px) {
     #presets-list-zone {
         grid-template-columns: repeat(3, minmax(0, 1fr));
         padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 7rem);

src/static/zones.js

@@ -17,24 +17,26 @@ function applyBrightnessSliders(val) {
     if (menuSlider) menuSlider.value = String(v);
 }
 
-async function saveGlobalBrightnessToServer(val) {
+async function saveZoneBrightnessToServer(zoneId, val) {
+    if (!zoneId) return;
     try {
-        const res = await fetch("/settings/settings", {
+        const res = await fetch(`/zones/${zoneId}`, {
             method: "PUT",
             headers: { "Content-Type": "application/json", Accept: "application/json" },
             credentials: "same-origin",
-            body: JSON.stringify({ global_brightness: val }),
+            body: JSON.stringify({ brightness: val }),
         });
         if (!res.ok) {
             const err = await res.json().catch(() => ({}));
-            console.warn("global_brightness save failed:", err.error || res.status);
+            console.warn("zone brightness save failed:", err.error || res.status);
         }
     } catch (e) {
-        console.warn("global_brightness save failed:", e);
+        console.warn("zone brightness save failed:", e);
     }
 }
 
-function sendZoneBrightness(value) {
+function sendZoneBrightness(zoneId, value) {
+    if (!zoneId) return;
     const val = Math.max(0, Math.min(255, parseInt(value, 10) || 0));
     const headerSlider = document.getElementById('header-brightness-slider');
     const menuSlider = document.getElementById('menu-brightness-slider');
@@ -50,7 +52,7 @@ function sendZoneBrightness(value) {
     brightnessSendTimeout = setTimeout(() => {
         (async () => {
             try {
-                await saveGlobalBrightnessToServer(val);
+                await saveZoneBrightnessToServer(zoneId, val);
                 const section = document.querySelector('.presets-section[data-zone-id]');
                 const names = typeof window.parseTabDeviceNames === 'function'
                     ? window.parseTabDeviceNames(section)
@@ -550,11 +552,16 @@ async function loadZoneContent(zoneId) {
         `;
 
         // Keep header and menu brightness controls in sync.
-        const brightnessSlider = document.getElementById('header-brightness-slider');
+        const zoneBrightness =
-        const menuBrightnessSlider = document.getElementById('menu-brightness-slider');
+            typeof zone.brightness === 'number'
-        if (menuBrightnessSlider && brightnessSlider) {
+                ? zone.brightness
-            menuBrightnessSlider.value = brightnessSlider.value;
+                : parseInt(String(zone.brightness ?? ''), 10);
-        }
+        const normalizedBrightness = Number.isFinite(zoneBrightness)
+            ? Math.max(0, Math.min(255, Math.round(zoneBrightness)))
+            : 255;
+        applyBrightnessSliders(normalizedBrightness);
+        // Apply this zone's saved brightness when switching zones.
+        sendZoneBrightness(zoneId, normalizedBrightness);
         
         // Trigger presets loading if the function exists
         if (typeof renderTabPresets === 'function') {
@@ -1025,38 +1032,17 @@ document.addEventListener('DOMContentLoaded', () => {
     const menuBrightnessSlider = document.getElementById('menu-brightness-slider');
     const headerBrightnessSlider = document.getElementById('header-brightness-slider');
     (async () => {
-        let fromServer = null;
-        try {
-            const res = await fetch('/settings', {
-                headers: { Accept: 'application/json' },
-                credentials: 'same-origin',
-            });
-            if (res.ok) {
-                const data = await res.json();
-                const g = data.global_brightness;
-                if (typeof g === 'number' && g >= 0 && g <= 255) {
-                    fromServer = Math.round(g);
-                } else if (g != null && g !== '') {
-                    const n = parseInt(String(g), 10);
-                    if (!Number.isNaN(n) && n >= 0 && n <= 255) {
-                        fromServer = n;
-                    }
-                }
-            }
-        } catch (_) {}
-        if (fromServer !== null) {
-            applyBrightnessSliders(fromServer);
-        }
         if (menuBrightnessSlider) {
             menuBrightnessSlider.addEventListener('input', (e) => {
-                sendZoneBrightness(e.target.value);
+                if (!currentZoneId) return;
+                sendZoneBrightness(currentZoneId, e.target.value);
             });
         }
         if (headerBrightnessSlider) {
             headerBrightnessSlider.addEventListener('input', (e) => {
-                sendZoneBrightness(e.target.value);
+                if (!currentZoneId) return;
+                sendZoneBrightness(currentZoneId, e.target.value);
             });
-            sendZoneBrightness(headerBrightnessSlider.value);
         }
     })();
 

src/templates/index.html

@@ -14,7 +14,13 @@
                     Loading zones...
                 </div>
             </div>
-            <div class="header-actions">
+            <div class="header-end">
+                <div id="audio-top-indicator" class="audio-top-indicator" title="Live audio BPM">
+                    <span class="audio-top-indicator-label">BPM</span>
+                    <span id="audio-top-bpm-value" class="audio-top-indicator-value">--</span>
+                    <span id="audio-top-beat-count" class="audio-top-indicator-subvalue">#0</span>
+                </div>
+                <div class="header-actions">
                 <div class="header-brightness-control">
                     <label for="header-brightness-slider">Brightness</label>
                     <input type="range" id="header-brightness-slider" min="0" max="255" value="255">
@@ -27,10 +33,11 @@
                 <button class="btn btn-secondary edit-mode-only" id="color-palette-btn">Colour Palette</button>
                 <button class="btn btn-secondary edit-mode-only" id="send-profile-presets-btn">Send Presets</button>
                 <button class="btn btn-secondary edit-mode-only" id="led-tool-btn">LED Tool</button>
+                <button class="btn btn-secondary" id="audio-btn">Audio</button>
                 <button class="btn btn-secondary" id="help-btn">Help</button>
                 <button type="button" class="btn btn-secondary ui-mode-toggle" id="ui-mode-toggle" aria-pressed="false" title="Switch preset strip mode — label is the mode you will switch to">Edit mode</button>
-            </div>
+                </div>
-            <div class="header-menu-mobile">
+                <div class="header-menu-mobile">
                 <button class="btn btn-secondary" id="main-menu-btn">Menu</button>
                 <div id="main-menu-dropdown" class="main-menu-dropdown">
                     <button type="button" class="ui-mode-toggle" id="ui-mode-toggle-mobile" aria-pressed="false">Edit mode</button>
@@ -46,8 +53,10 @@
                     <button type="button" class="edit-mode-only" data-target="color-palette-btn">Colour Palette</button>
                     <button type="button" class="edit-mode-only" data-target="send-profile-presets-btn">Send Presets</button>
                     <button type="button" class="edit-mode-only" data-target="led-tool-btn">LED Tool</button>
+                    <button type="button" data-target="audio-btn">Audio</button>
                     <button type="button" data-target="help-btn">Help</button>
                 </div>
+                </div>
             </div>
         </header>
 
@@ -202,6 +211,25 @@
                     <label for="preset-delay-input">Delay (ms)</label>
                     <input type="number" id="preset-delay-input" placeholder="Delay" min="0" max="10000" value="0">
                 </div>
+                <div class="preset-editor-field">
+                    <label for="preset-background-input">Background</label>
+                    <div class="profiles-actions" style="gap: 0.4rem;">
+                        <button type="button" class="btn btn-secondary btn-small" id="preset-background-btn" title="Choose background colour">#000000</button>
+                        <input type="color" id="preset-background-input" value="#000000" title="Background colour used in patterns with background support" style="position:absolute;opacity:0;pointer-events:none;width:1px;height:1px;">
+                    </div>
+                </div>
+            </div>
+            <div class="form-group" style="margin-top: 0.5rem; margin-bottom: 0;">
+                <label id="preset-manual-mode-label" style="display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0;">
+                    <input type="checkbox" id="preset-manual-mode-input">
+                    Manual mode (single-shot where supported)
+                </label>
+                <p id="preset-manual-mode-hint" class="muted-text" style="display: none; margin-top: 0.35rem; font-size: 0.85em;"></p>
+                <div id="preset-manual-beat-n-wrap" class="preset-editor-field" style="display: none; margin-top: 0.5rem;">
+                    <label for="preset-manual-beat-n-input">Audio beat: every</label>
+                    <input type="number" id="preset-manual-beat-n-input" min="1" max="64" value="1" style="width: 4rem;" title="Controller only; not sent to pattern logic">
+                    <span class="muted-text" style="font-size: 0.85em;">beats (this app only)</span>
+                </div>
             </div>
             <div class="n-params-grid">
                 <div class="n-param-group">
@@ -389,6 +417,49 @@
         </div>
     </div>
 
+    <!-- Audio Modal -->
+    <div id="audio-modal" class="modal">
+        <div class="modal-content">
+            <h2>Audio Beat Detection</h2>
+            <p class="muted-text">Select an input device and start beat detection.</p>
+            <div class="form-group">
+                <label for="audio-device-select">Input device</label>
+                <div class="profiles-actions">
+                    <select id="audio-device-select" style="flex: 1;">
+                        <option value="">Default input</option>
+                    </select>
+                    <button type="button" class="btn btn-secondary" id="audio-refresh-btn">Refresh</button>
+                </div>
+                <small>Tip: for Pulse/pipewire playback capture, use a source containing <code>monitor</code>.</small>
+            </div>
+            <div class="form-group">
+                <label for="audio-device-override">Manual device override (optional)</label>
+                <input type="text" id="audio-device-override" placeholder='e.g. 3 or "alsa_output....monitor"'>
+            </div>
+            <div class="form-group">
+                <label>Current BPM</label>
+                <div id="audio-bpm-value" class="audio-bpm-readout">--</div>
+            </div>
+            <div class="form-group">
+                <label>Detected hit type</label>
+                <div id="audio-hit-type-value" class="audio-hit-type-readout">unknown</div>
+            </div>
+            <div class="form-group">
+                <label>Flash on beat</label>
+                <div id="audio-beat-flash" class="audio-beat-flash" aria-hidden="true"></div>
+            </div>
+            <div class="modal-actions">
+                <button type="button" class="btn btn-primary" id="audio-start-btn">Start</button>
+                <button type="button" class="btn btn-secondary" id="audio-stop-btn">Stop</button>
+                <button type="button" class="btn btn-secondary" id="audio-close-btn">Close</button>
+            </div>
+            <div class="form-group" style="margin-top: 0.75rem;">
+                <label for="audio-devices-debug">Detected devices (Python)</label>
+                <textarea id="audio-devices-debug" rows="8" readonly style="width:100%; font-family:monospace; resize:vertical;"></textarea>
+            </div>
+        </div>
+    </div>
+
     <!-- Settings Modal -->
     <div id="settings-modal" class="modal">
         <div class="modal-content">
@@ -543,5 +614,6 @@
     <script src="/static/patterns.js"></script>
     <script src="/static/presets.js"></script>
     <script src="/static/devices.js"></script>
+    <script src="/static/audio.js"></script>
 </body>
 </html>

src/util/audio_detector.py

@@ -0,0 +1,282 @@
+import collections
+import importlib.util
+import os
+import queue
+import threading
+import time
+
+
+class AudioBeatDetector:
+    def __init__(self):
+        self._lock = threading.Lock()
+        self._thread = None
+        self._stream = None
+        self._running = False
+        self._stop_event = threading.Event()
+        self._status = {
+            "running": False,
+            "bpm": None,
+            "last_beat_ts": None,
+            "beat_seq": 0,
+            "beat_type": "unknown",
+            "beat_type_confidence": 0.0,
+            "error": None,
+            "device": None,
+        }
+
+    def list_input_devices(self):
+        import sounddevice as sd
+
+        devices = sd.query_devices()
+        hostapis = sd.query_hostapis()
+        default_input_idx = None
+        try:
+            default_input_idx = int(sd.default.device[0])
+        except Exception:
+            default_input_idx = None
+        out = []
+        for idx, dev in enumerate(devices):
+            name = str(dev.get("name", f"Input {idx}"))
+            chans = int(dev.get("max_input_channels", 0))
+            is_monitor_named = "monitor" in name.lower()
+            if chans <= 0 and not is_monitor_named:
+                continue
+            sr = int(dev.get("default_samplerate", 44100))
+            hostapi_idx = int(dev.get("hostapi", -1))
+            hostapi_name = (
+                str(hostapis[hostapi_idx].get("name", "unknown"))
+                if 0 <= hostapi_idx < len(hostapis)
+                else "unknown"
+            )
+            is_default = default_input_idx is not None and idx == default_input_idx
+            ch_label = f"{chans}ch" if chans > 0 else "0ch?"
+            label = f"[{idx}] {name} ({ch_label} @ {sr}Hz, {hostapi_name})"
+            if is_default:
+                label = f"{label} [default]"
+            if is_monitor_named:
+                label = f"{label} [monitor]"
+            out.append(
+                {
+                    "id": idx,
+                    "name": name,
+                    "label": label,
+                    "max_input_channels": chans,
+                    "default_samplerate": sr,
+                    "is_default": is_default,
+                    "hostapi": hostapi_name,
+                }
+            )
+        return out
+
+    def diagnostics(self):
+        import sounddevice as sd
+
+        devices = sd.query_devices()
+        hostapis = sd.query_hostapis()
+        default_input = None
+        try:
+            default_input = sd.default.device[0]
+        except Exception:
+            default_input = None
+        return {
+            "default_input": default_input,
+            "hostapis": hostapis,
+            "devices": devices,
+        }
+
+    def start(self, device=None):
+        should_restart = False
+        with self._lock:
+            should_restart = self._running
+        if should_restart:
+            self.stop()
+        with self._lock:
+            self._stop_event.clear()
+            self._status.update(
+                {
+                    "running": True,
+                    "bpm": None,
+                    "last_beat_ts": None,
+                    "beat_seq": 0,
+                    "beat_type": "unknown",
+                    "beat_type_confidence": 0.0,
+                    "error": None,
+                    "device": device,
+                }
+            )
+            self._running = True
+            self._thread = threading.Thread(
+                target=self._run_loop, args=(device,), daemon=True
+            )
+            self._thread.start()
+
+    def stop(self):
+        with self._lock:
+            self._stop_event.set()
+            t = self._thread
+            stream = self._stream
+        try:
+            import sounddevice as sd
+            sd.stop(ignore_errors=True)
+        except Exception:
+            pass
+        if stream is not None:
+            try:
+                stream.abort()
+            except Exception:
+                pass
+            try:
+                stream.stop()
+            except Exception:
+                pass
+            try:
+                stream.close()
+            except Exception:
+                pass
+        if t and t.is_alive():
+            t.join(timeout=3.0)
+        with self._lock:
+            self._running = False
+            self._thread = None
+            self._stream = None
+            self._status["running"] = False
+
+    def status(self):
+        with self._lock:
+            return dict(self._status)
+
+    def _set_error(self, msg):
+        print(f"[audio] {msg}")
+        with self._lock:
+            self._status["error"] = msg
+            self._status["running"] = False
+            self._running = False
+
+    def _record_beat(self, bpm, beat_type="unknown", beat_type_confidence=0.0):
+        now = time.time()
+        with self._lock:
+            self._status["last_beat_ts"] = now
+            self._status["bpm"] = bpm
+            self._status["beat_type"] = beat_type
+            self._status["beat_type_confidence"] = float(beat_type_confidence or 0.0)
+            self._status["beat_seq"] = int(self._status.get("beat_seq", 0)) + 1
+        try:
+            from util.beat_driver_route import notify_beat_detected
+
+            notify_beat_detected()
+        except Exception as e:
+            print(f"[audio] beat driver route: {e}")
+
+    def _run_loop(self, device):
+        try:
+            import argparse
+            import numpy as np
+            import sounddevice as sd
+        except Exception as e:
+            self._set_error(f"audio deps unavailable: {e}")
+            return
+
+        try:
+            root_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", ".."))
+            beat_detect_path = os.path.join(root_dir, "tests", "beat_detect.py")
+            spec = importlib.util.spec_from_file_location("beat_detect_runtime", beat_detect_path)
+            if spec is None or spec.loader is None:
+                raise RuntimeError("cannot load tests/beat_detect.py")
+            beat_mod = importlib.util.module_from_spec(spec)
+            spec.loader.exec_module(beat_mod)
+
+            if device is None:
+                try:
+                    device = int(sd.default.device[0])
+                except Exception:
+                    device = -1
+                if device is None or device < 0:
+                    raise RuntimeError(
+                        "no default input device; open Audio, pick an input, then Start"
+                    )
+
+            dev_info = sd.query_devices(device, "input")
+            sample_rate = int(dev_info["default_samplerate"])
+
+            args = argparse.Namespace(
+                mode="aubio",
+                device=device,
+                sample_rate=sample_rate,
+                hop_size=256,
+                win_mult=2,
+                min_band_hz=45.0,
+                max_band_hz=180.0,
+                energy_weight=0.7,
+                flux_weight=0.3,
+                threshold_multiplier=1.35,
+                ema_alpha=0.08,
+                min_ioi_ms=85.0,
+                bpm_window=8,
+                post_url="",
+                aubio_method="default",
+                aubio_threshold=0.12,
+                silence_gate_db=-58.0,
+            )
+            runtime = beat_mod.BeatDetectRuntime(args)
+            runtime.setup(sample_rate=sample_rate)
+            hop_size = runtime.frame_size
+
+            audio_q = queue.Queue(maxsize=64)
+
+            def callback(indata, frames, _time_info, status):
+                _ = frames
+                if status:
+                    print(f"[audio] status: {status}")
+                mono = np.asarray(indata[:, 0], dtype=np.float32)
+                if not audio_q.full():
+                    audio_q.put_nowait(mono)
+
+            stream = sd.InputStream(
+                device=device,
+                channels=1,
+                samplerate=sample_rate,
+                blocksize=hop_size,
+                callback=callback,
+            )
+            with self._lock:
+                self._stream = stream
+            stream.start()
+            try:
+                while not self._stop_event.is_set():
+                    try:
+                        frame = audio_q.get(timeout=0.1)
+                    except queue.Empty:
+                        continue
+                    if frame.shape[0] != hop_size:
+                        if frame.shape[0] > hop_size:
+                            frame = frame[:hop_size]
+                        else:
+                            frame = np.pad(frame, (0, hop_size - frame.shape[0]))
+                    event = runtime.process_frame(frame, now_s=time.time())
+                    if event is None:
+                        continue
+                    bpm = event.get("bpm")
+                    self._record_beat(
+                        bpm,
+                        beat_type=event.get("beat_type", "unknown"),
+                        beat_type_confidence=event.get("beat_type_confidence", 0.0),
+                    )
+            finally:
+                try:
+                    stream.stop()
+                except Exception:
+                    pass
+                try:
+                    stream.close()
+                except Exception:
+                    pass
+                with self._lock:
+                    if self._stream is stream:
+                        self._stream = None
+        except Exception as e:
+            self._set_error(f"detector failed: {e}")
+            return
+        finally:
+            with self._lock:
+                self._running = False
+                self._status["running"] = False

src/util/beat_driver_route.py

@@ -0,0 +1,263 @@
+"""Server-side routing of audio beats to LED drivers (no browser required)."""
+
+from __future__ import annotations
+
+import asyncio
+import json
+import os
+import threading
+from typing import Any, Dict, List, Optional, Set
+
+_route_lock = threading.Lock()
+_beat_route: Dict[str, Any] = {
+    "enabled": False,
+    "device_names": [],
+    "wire_preset_id": "2",
+    "is_manual": False,
+    "pattern": "",
+    "manual_beat_n": 1,
+}
+_beat_counter: int = 0
+_main_loop: Optional[asyncio.AbstractEventLoop] = None
+
+
+def set_beat_route_main_loop(loop: asyncio.AbstractEventLoop) -> None:
+    global _main_loop
+    _main_loop = loop
+
+
+def update_beat_route(payload: Dict[str, Any]) -> None:
+    """Internal: set or clear routing from explicit fields (tests / future APIs)."""
+    global _beat_route, _beat_counter
+    if not isinstance(payload, dict):
+        return
+    with _route_lock:
+        if payload.get("enabled") is False:
+            _beat_route = {**_beat_route, "enabled": False}
+            _beat_counter = 0
+            return
+        names = payload.get("device_names")
+        if not isinstance(names, list):
+            names = []
+        try:
+            n_raw = int(payload.get("manual_beat_n", 1))
+        except (TypeError, ValueError):
+            n_raw = 1
+        manual_n = max(1, min(64, n_raw))
+        _beat_route = {
+            "enabled": bool(payload.get("enabled", False)),
+            "device_names": [str(n).strip() for n in names if str(n).strip()],
+            "wire_preset_id": str(payload.get("wire_preset_id") or "2"),
+            "is_manual": bool(payload.get("is_manual", False)),
+            "pattern": str(payload.get("pattern") or "").strip(),
+            "manual_beat_n": manual_n,
+        }
+        _beat_counter = 0
+
+
+def get_beat_route() -> Dict[str, Any]:
+    with _route_lock:
+        return dict(_beat_route)
+
+
+def _coerce_manual_beat_n(body: Any) -> int:
+    """Beats between audio-triggered selects (led-controller only); default 1 = every beat."""
+    if not isinstance(body, dict):
+        return 1
+    raw = body.get("manual_beat_n")
+    if raw is None:
+        return 1
+    try:
+        n = int(raw)
+    except (TypeError, ValueError):
+        return 1
+    return max(1, min(64, n))
+
+
+def _coerce_auto_from_body(body: Any) -> bool:
+    """Match JS ``coercePresetAuto`` / ``build_preset_dict`` (default: auto-run)."""
+    if not isinstance(body, dict):
+        return True
+    raw = body.get("auto", body.get("a", True))
+    if isinstance(raw, bool):
+        return raw
+    if raw is None:
+        return True
+    if isinstance(raw, int):
+        return raw != 0
+    if isinstance(raw, str):
+        lowered = raw.strip().lower()
+        if lowered in ("false", "0", "no", "off"):
+            return False
+        if lowered in ("true", "1", "yes", "on"):
+            return True
+    return True
+
+
+def sync_beat_route_from_push_sequence(sequence: List[Any]) -> None:
+    """
+    Update beat routing from a ``/presets/push`` body ``sequence`` (list of v1 dicts).
+
+    When the batch includes a ``select`` and preset bodies, and the selected preset is
+    manual (auto off), enables the route; otherwise disables it.
+    """
+    merged_presets: Dict[str, Any] = {}
+    last_select: Optional[Dict[str, Any]] = None
+    for item in sequence:
+        if isinstance(item, str):
+            try:
+                item = json.loads(item)
+            except (TypeError, ValueError):
+                continue
+        if not isinstance(item, dict) or item.get("v") != "1":
+            continue
+        pr = item.get("presets")
+        if isinstance(pr, dict):
+            merged_presets.update(pr)
+        sel = item.get("select")
+        if isinstance(sel, dict) and sel:
+            last_select = sel
+    if not last_select:
+        return
+
+    device_names = [str(k).strip() for k in last_select.keys() if str(k).strip()]
+    if not device_names:
+        update_beat_route({"enabled": False})
+        return
+
+    wire_ids: Set[str] = set()
+    for name in device_names:
+        val = last_select.get(name)
+        if isinstance(val, list) and val:
+            wire_ids.add(str(val[0]).strip())
+        elif val is not None:
+            wire_ids.add(str(val).strip())
+    if len(wire_ids) != 1:
+        update_beat_route({"enabled": False})
+        return
+    wire_preset_id = wire_ids.pop()
+    preset_body = merged_presets.get(wire_preset_id)
+    if preset_body is None:
+        for k, v in merged_presets.items():
+            if str(k).strip() == wire_preset_id:
+                preset_body = v
+                break
+    if not isinstance(preset_body, dict):
+        update_beat_route({"enabled": False})
+        return
+
+    if _coerce_auto_from_body(preset_body):
+        update_beat_route({"enabled": False})
+        return
+
+    pattern = str(preset_body.get("pattern") or preset_body.get("p") or "").strip()
+    if pattern and not _pattern_supports_manual(pattern):
+        update_beat_route({"enabled": False})
+        return
+
+    update_beat_route(
+        {
+            "enabled": True,
+            "device_names": device_names,
+            "wire_preset_id": wire_preset_id,
+            "is_manual": True,
+            "pattern": pattern,
+            "manual_beat_n": _coerce_manual_beat_n(preset_body),
+        }
+    )
+
+
+def _pattern_supports_manual(pattern_key: str) -> bool:
+    if not pattern_key:
+        return True
+    try:
+        here = os.path.dirname(os.path.abspath(__file__))
+        root = os.path.abspath(os.path.join(here, "..", ".."))
+        path = os.path.join(root, "db", "pattern.json")
+        with open(path, "r", encoding="utf-8") as f:
+            data = json.load(f)
+        meta = data.get(pattern_key)
+        if meta is None:
+            meta = data.get(pattern_key.lower())
+        if not isinstance(meta, dict):
+            return True
+        return meta.get("supports_manual") is not False
+    except OSError:
+        return True
+
+
+def _macs_for_registry_names(device_names: List[str]) -> List[str]:
+    from models.device import Device
+
+    want = {str(n).strip() for n in device_names if str(n).strip()}
+    if not want:
+        return []
+    devices = Device()
+    macs: List[str] = []
+    seen = set()
+    for did in devices.list():
+        doc = devices.read(did) or {}
+        nm = str(doc.get("name") or "").strip()
+        if nm not in want:
+            continue
+        key = str(did).strip().lower().replace(":", "").replace("-", "")
+        if len(key) == 12 and key not in seen:
+            seen.add(key)
+            macs.append(key)
+    return macs
+
+
+async def _deliver_select(device_names: List[str], wire_preset_id: str) -> None:
+    from models.device import Device
+    from models.transport import get_current_sender
+    from util.driver_delivery import deliver_json_messages
+
+    sender = get_current_sender()
+    if not sender:
+        return
+    select = {str(n).strip(): [wire_preset_id] for n in device_names if str(n).strip()}
+    if not select:
+        return
+    msg = json.dumps({"v": "1", "select": select}, separators=(",", ":"))
+    macs = _macs_for_registry_names(list(select.keys()))
+    if not macs:
+        return
+    devices = Device()
+    try:
+        await deliver_json_messages(sender, [msg], macs, devices, delay_s=0.05)
+    except Exception as e:
+        print(f"[beat-route] deliver failed: {e}")
+
+
+def notify_beat_detected() -> None:
+    """Invoked from the audio thread when a beat is detected."""
+    global _beat_counter
+    with _route_lock:
+        r = dict(_beat_route)
+        if not r.get("enabled"):
+            return
+        if not r.get("is_manual"):
+            return
+        pattern = r.get("pattern") or ""
+        if pattern and not _pattern_supports_manual(pattern):
+            return
+        names = r.get("device_names") or []
+        if not names:
+            return
+        try:
+            n = int(r.get("manual_beat_n") or 1)
+        except (TypeError, ValueError):
+            n = 1
+        n = max(1, min(64, n))
+        _beat_counter += 1
+        if ((_beat_counter - 1) % n) != 0:
+            return
+        preset_id = str(r.get("wire_preset_id") or "2")
+        names_copy = list(names)
+    loop = _main_loop
+    if loop is None:
+        return
+    try:
+        asyncio.run_coroutine_threadsafe(_deliver_select(names_copy, preset_id), loop)
+    except Exception as e:
+        print(f"[beat-route] schedule failed: {e}")

src/util/espnow_message.py

@@ -119,13 +119,40 @@ def build_preset_dict(preset_data):
     else:
         colors = ["#FFFFFF"]
     
+    def _coerce_auto(raw):
+        if isinstance(raw, bool):
+            return raw
+        if raw is None:
+            return True
+        if isinstance(raw, int):
+            return raw != 0
+        if isinstance(raw, str):
+            lowered = raw.strip().lower()
+            if lowered in ("false", "0", "no", "off"):
+                return False
+            if lowered in ("true", "1", "yes", "on"):
+                return True
+        return True
+
+    auto_raw = preset_data.get("auto", preset_data.get("a", True))
+    auto_bool = _coerce_auto(auto_raw)
+
+    bg_raw = preset_data.get("background", preset_data.get("bg", "#000000"))
+    if isinstance(bg_raw, str):
+        bg = bg_raw if bg_raw.startswith("#") else f"#{bg_raw}"
+    elif isinstance(bg_raw, (list, tuple)) and len(bg_raw) == 3:
+        bg = f"#{int(bg_raw[0]):02x}{int(bg_raw[1]):02x}{int(bg_raw[2]):02x}"
+    else:
+        bg = "#000000"
+
     # Build payload using the short keys expected by led-driver
     preset = {
         "p": preset_data.get("pattern", preset_data.get("p", "off")),
         "c": colors,
         "d": preset_data.get("delay", preset_data.get("d", 100)),
         "b": preset_data.get("brightness", preset_data.get("b", preset_data.get("br", 127))),
-        "a": preset_data.get("auto", preset_data.get("a", True)),
+        "a": auto_bool,
+        "bg": bg,
         "n1": preset_data.get("n1", 0),
         "n2": preset_data.get("n2", 0),
         "n3": preset_data.get("n3", 0),

tests/beat_detect.py

@@ -0,0 +1,375 @@
+#!/usr/bin/env python3
+"""Live beat detection utility with custom/aubio/hybrid modes."""
+
+from __future__ import annotations
+
+import argparse
+import collections
+import queue
+import sys
+import time
+from typing import Deque
+
+try:
+    import numpy as np
+except ImportError as exc:
+    raise SystemExit(
+        "Missing dependency: numpy. Install with `pip install numpy`."
+    ) from exc
+
+try:
+    import sounddevice as sd
+except ImportError as exc:
+    raise SystemExit(
+        "Missing dependency: sounddevice. Install with `pip install sounddevice`."
+    ) from exc
+
+try:
+    import requests
+except ImportError:
+    requests = None
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Beat detector utility")
+    parser.add_argument(
+        "--mode",
+        choices=("custom", "aubio", "hybrid"),
+        default="aubio",
+        help="Detection mode",
+    )
+    parser.add_argument("--device", default=None, help="Input device name or index")
+    parser.add_argument(
+        "--sample-rate",
+        type=int,
+        default=0,
+        help="Audio sample rate (0 = use selected device default)",
+    )
+    parser.add_argument("--hop-size", type=int, default=256, help="Frame hop size in samples")
+    parser.add_argument("--win-mult", type=int, default=2, help="Aubio window size multiplier")
+    parser.add_argument(
+        "--min-band-hz",
+        type=float,
+        default=45.0,
+        help="Low frequency bound used for beat energy",
+    )
+    parser.add_argument(
+        "--max-band-hz",
+        type=float,
+        default=180.0,
+        help="High frequency bound used for beat energy",
+    )
+    parser.add_argument(
+        "--energy-weight",
+        type=float,
+        default=0.7,
+        help="Weight for low-band energy component (0..1)",
+    )
+    parser.add_argument(
+        "--flux-weight",
+        type=float,
+        default=0.3,
+        help="Weight for spectral flux component (0..1)",
+    )
+    parser.add_argument(
+        "--threshold-multiplier",
+        type=float,
+        default=1.35,
+        help="Custom-mode threshold multiplier vs adaptive baseline",
+    )
+    parser.add_argument(
+        "--ema-alpha",
+        type=float,
+        default=0.08,
+        help="Adaptive baseline smoothing (higher reacts faster)",
+    )
+    parser.add_argument(
+        "--min-ioi-ms",
+        type=float,
+        default=85.0,
+        help="Minimum time between beats in milliseconds",
+    )
+    parser.add_argument(
+        "--bpm-window",
+        type=int,
+        default=8,
+        help="How many recent beat intervals to use for BPM estimate",
+    )
+    parser.add_argument(
+        "--post-url",
+        default="",
+        help="Optional HTTP URL to POST beat events",
+    )
+    parser.add_argument(
+        "--aubio-method",
+        default="default",
+        choices=("default", "specdiff", "hfc", "complex", "phase", "energy"),
+        help="Aubio tempo method",
+    )
+    parser.add_argument(
+        "--aubio-threshold",
+        type=float,
+        default=0.12,
+        help="Aubio detection threshold",
+    )
+    parser.add_argument(
+        "--silence-gate-db",
+        type=float,
+        default=-58.0,
+        help="Ignore beat triggers when frame RMS is below this dB level",
+    )
+    return parser.parse_args()
+
+
+def _estimate_bpm(beat_times: Deque[float]) -> float | None:
+    if len(beat_times) < 3:
+        return None
+    intervals = np.diff(np.array(beat_times, dtype=np.float64))
+    valid = intervals[(intervals > 0.2) & (intervals < 2.0)]
+    if valid.size == 0:
+        return None
+    return 60.0 / float(np.median(valid))
+
+
+def _load_aubio_if_needed(mode: str):
+    if mode == "custom":
+        return None
+    try:
+        import aubio
+        return aubio
+    except ImportError:
+        dist_packages = "/usr/lib/python3/dist-packages"
+        if dist_packages not in sys.path:
+            sys.path.append(dist_packages)
+        try:
+            import aubio
+            return aubio
+        except ImportError:
+            raise SystemExit("aubio not installed; use --mode custom or install aubio")
+
+
+class BeatDetectRuntime:
+    """Reusable detector runtime so web and CLI can share logic."""
+
+    def __init__(self, args):
+        self.args = args
+        self.aubio = _load_aubio_if_needed(args.mode)
+        self.sample_rate = 0
+        self.frame_size = 0
+        self.tempo = None
+        self.band_mask = None
+        self.freqs = None
+        self.window = None
+        self.prev_mag = None
+        self.kick_mask = None
+        self.snare_mask = None
+        self.hat_mask = None
+        self.baseline = 1e-6
+        self.beat_times: Deque[float] = collections.deque(
+            maxlen=max(2, args.bpm_window + 1)
+        )
+        self.last_trigger_s = 0.0
+        self.debounce_s = float(args.min_ioi_ms) / 1000.0
+
+    def setup(self, sample_rate: int):
+        self.sample_rate = int(sample_rate)
+        self.frame_size = max(128, int(self.args.hop_size))
+        win_size = max(1024, self.frame_size * max(2, self.args.win_mult))
+        freqs = np.fft.rfftfreq(self.frame_size, d=1.0 / self.sample_rate)
+        self.freqs = freqs
+        self.band_mask = (freqs >= self.args.min_band_hz) & (
+            freqs <= self.args.max_band_hz
+        )
+        self.kick_mask = (freqs >= 40.0) & (freqs <= 140.0)
+        self.snare_mask = (freqs >= 140.0) & (freqs <= 3000.0)
+        self.hat_mask = (freqs >= 5000.0) & (freqs <= 12000.0)
+        if not np.any(self.band_mask):
+            raise ValueError("Invalid band range for current sample rate")
+        self.window = np.hanning(self.frame_size).astype(np.float32)
+        self.prev_mag = np.zeros(freqs.shape[0], dtype=np.float32)
+        self.baseline = 1e-6
+        self.last_trigger_s = 0.0
+        self.beat_times.clear()
+        self.tempo = None
+        if self.aubio is not None:
+            self.tempo = self.aubio.tempo(
+                self.args.aubio_method, win_size, self.frame_size, self.sample_rate
+            )
+            if hasattr(self.tempo, "set_threshold"):
+                self.tempo.set_threshold(float(self.args.aubio_threshold))
+            if hasattr(self.tempo, "set_minioi_ms"):
+                self.tempo.set_minioi_ms(float(self.args.min_ioi_ms))
+
+    def _classify_hit(self, mag: np.ndarray):
+        total = float(np.mean(mag) + 1e-9)
+        kick = float(np.mean(mag[self.kick_mask])) / total if np.any(self.kick_mask) else 0.0
+        snare = float(np.mean(mag[self.snare_mask])) / total if np.any(self.snare_mask) else 0.0
+        hat = float(np.mean(mag[self.hat_mask])) / total if np.any(self.hat_mask) else 0.0
+        scores = {
+            "kick": kick,
+            "snare": snare,
+            "hat": hat,
+        }
+        label, value = max(scores.items(), key=lambda kv: kv[1])
+        if value < 1.15:
+            return "unknown", value
+        return label, value
+
+    def process_frame(self, frame: np.ndarray, now_s: float | None = None):
+        if self.window is None or self.band_mask is None:
+            raise RuntimeError("Runtime not setup")
+        if frame.shape[0] != self.frame_size:
+            if frame.shape[0] > self.frame_size:
+                frame = frame[: self.frame_size]
+            else:
+                frame = np.pad(frame, (0, self.frame_size - frame.shape[0]))
+
+        f32 = frame.astype(np.float32)
+        rms = float(np.sqrt(np.mean(f32 * f32) + 1e-12))
+        db = 20.0 * np.log10(max(rms, 1e-12))
+        if db < float(self.args.silence_gate_db):
+            return None
+        mag = np.abs(np.fft.rfft(f32 * self.window)).astype(np.float32)
+        band_energy = float(np.mean(mag[self.band_mask]))
+        flux = float(np.mean(np.maximum(0.0, mag - self.prev_mag)))
+        self.prev_mag[:] = mag
+
+        weight_sum = max(1e-6, self.args.energy_weight + self.args.flux_weight)
+        score = ((self.args.energy_weight * band_energy) + (self.args.flux_weight * flux)) / weight_sum
+        self.baseline = ((1.0 - self.args.ema_alpha) * self.baseline) + (
+            self.args.ema_alpha * score
+        )
+        threshold = self.baseline * self.args.threshold_multiplier
+        custom_hit = score > threshold
+
+        aubio_hit = False
+        aubio_bpm = None
+        if self.tempo is not None:
+            aubio_hit = bool(self.tempo(f32)[0])
+            val = float(self.tempo.get_bpm())
+            aubio_bpm = val if val > 0 else None
+
+        if now_s is None:
+            now_s = time.time()
+        if (now_s - self.last_trigger_s) < self.debounce_s:
+            return None
+
+        if self.args.mode == "custom":
+            should_trigger = custom_hit
+        elif self.args.mode == "aubio":
+            should_trigger = aubio_hit
+        else:
+            should_trigger = custom_hit or aubio_hit
+        if not should_trigger:
+            return None
+
+        self.last_trigger_s = now_s
+        self.beat_times.append(now_s)
+        bpm = aubio_bpm if aubio_bpm is not None else _estimate_bpm(self.beat_times)
+        strength = score / max(1e-9, self.baseline)
+        beat_type, beat_type_conf = self._classify_hit(mag)
+        if self.args.mode == "custom":
+            src = "custom"
+        elif self.args.mode == "aubio":
+            src = "aubio"
+        elif custom_hit and aubio_hit:
+            src = "both"
+        elif custom_hit:
+            src = "custom"
+        else:
+            src = "aubio"
+        return {
+            "ts": now_s,
+            "bpm": bpm,
+            "src": src,
+            "score": score,
+            "threshold": threshold,
+            "strength": strength,
+            "beat_type": beat_type,
+            "beat_type_confidence": beat_type_conf,
+            "db": db,
+        }
+
+
+def main() -> int:
+    args = parse_args()
+    runtime = BeatDetectRuntime(args)
+
+    if args.post_url and requests is None:
+        raise SystemExit("`requests` is required for --post-url (pip install requests)")
+
+    if args.sample_rate > 0:
+        sample_rate = args.sample_rate
+    else:
+        dev_info = sd.query_devices(args.device, "input")
+        sample_rate = int(dev_info["default_samplerate"])
+
+    runtime.setup(sample_rate=sample_rate)
+    frame_size = runtime.frame_size
+    audio_q: "queue.Queue[np.ndarray]" = queue.Queue(maxsize=64)
+
+    def audio_callback(indata, frames, _time_info, status):
+        _ = frames
+        if status:
+            print(f"audio status: {status}")
+        mono = np.asarray(indata[:, 0], dtype=np.float32)
+        if not audio_q.full():
+            audio_q.put_nowait(mono)
+
+    print(
+        "Listening... Ctrl+C to stop. "
+        f"mode={args.mode} sr={sample_rate} hop={frame_size} "
+        f"band={args.min_band_hz:.0f}-{args.max_band_hz:.0f}Hz "
+        f"custom_th={args.threshold_multiplier:.2f} aubio_th={args.aubio_threshold:.2f} "
+        f"min_ioi={args.min_ioi_ms:.0f}ms"
+    )
+
+    with sd.InputStream(
+        device=args.device,
+        channels=1,
+        samplerate=sample_rate,
+        blocksize=frame_size,
+        callback=audio_callback,
+    ):
+        try:
+            while True:
+                try:
+                    frame = audio_q.get(timeout=0.1)
+                except queue.Empty:
+                    continue
+                if frame.shape[0] != frame_size:
+                    if frame.shape[0] > frame_size:
+                        frame = frame[:frame_size]
+                    else:
+                        frame = np.pad(frame, (0, frame_size - frame.shape[0]))
+
+                event = runtime.process_frame(frame, now_s=time.time())
+                if event is None:
+                    continue
+                now_s = event["ts"]
+                bpm = event["bpm"]
+                bpm_text = f"{bpm:.1f}" if isinstance(bpm, (float, int)) else "--"
+                src = event["src"]
+                print(
+                    f"[{args.mode}] BEAT bpm={bpm_text} src={src} type={event['beat_type']} "
+                    f"type_conf={event['beat_type_confidence']:.2f} strength={event['strength']:.2f} "
+                    f"db={event['db']:.1f} "
+                    f"score={event['score']:.3e} threshold={event['threshold']:.3e}"
+                )
+
+                if args.post_url and requests is not None:
+                    try:
+                        requests.post(
+                            args.post_url,
+                            json={"beat": True, "source": src, "ts": now_s, "bpm": bpm},
+                            timeout=0.5,
+                        )
+                    except Exception as exc:
+                        print(f"post failed: {exc}")
+        except KeyboardInterrupt:
+            print("\nStopped.")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

tests/make_bpm_test_audio.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+"""Generate a click-track WAV file at a known BPM.
+
+Example:
+  python tests/make_bpm_test_audio.py --bpm 128 --seconds 60 --output tests/audio_128bpm.wav
+"""
+
+from __future__ import annotations
+
+import argparse
+import math
+import struct
+import wave
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Generate known-BPM click track")
+    parser.add_argument("--bpm", type=float, required=True, help="Target BPM (e.g. 120)")
+    parser.add_argument("--seconds", type=float, default=30.0, help="Audio duration in seconds")
+    parser.add_argument("--sample-rate", type=int, default=44100, help="Sample rate")
+    parser.add_argument("--click-ms", type=float, default=25.0, help="Click length in milliseconds")
+    parser.add_argument(
+        "--output",
+        default="tests/bpm_test.wav",
+        help="Output WAV path",
+    )
+    return parser.parse_args()
+
+
+def main() -> int:
+    args = parse_args()
+    if args.bpm <= 0:
+        raise SystemExit("--bpm must be > 0")
+    if args.seconds <= 0:
+        raise SystemExit("--seconds must be > 0")
+
+    sample_rate = int(args.sample_rate)
+    total_samples = int(args.seconds * sample_rate)
+    beat_interval = 60.0 / float(args.bpm)
+    click_samples = max(1, int((args.click_ms / 1000.0) * sample_rate))
+
+    data = [0.0] * total_samples
+    beat_index = 0
+    t = 0.0
+    while t < args.seconds:
+        start = int(t * sample_rate)
+        # Slight accent every 4 beats to help human counting.
+        freq = 1760.0 if beat_index % 4 == 0 else 1320.0
+        amp = 0.9 if beat_index % 4 == 0 else 0.6
+        for i in range(click_samples):
+            idx = start + i
+            if idx >= total_samples:
+                break
+            env = math.exp(-8.0 * (i / click_samples))
+            s = amp * env * math.sin((2.0 * math.pi * freq * i) / sample_rate)
+            data[idx] += s
+        t += beat_interval
+        beat_index += 1
+
+    with wave.open(args.output, "wb") as wf:
+        wf.setnchannels(1)
+        wf.setsampwidth(2)
+        wf.setframerate(sample_rate)
+        frames = bytearray()
+        for s in data:
+            clipped = max(-1.0, min(1.0, s))
+            frames.extend(struct.pack("<h", int(clipped * 32767)))
+        wf.writeframes(bytes(frames))
+
+    print(f"Wrote {args.output} at {args.bpm:.2f} BPM for {args.seconds:.1f}s")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

tests/play_varying_click_track.py

@@ -0,0 +1,171 @@
+#!/usr/bin/env python3
+"""Play a click track with tempo variation for BPM detector testing.
+
+Examples:
+  python tests/play_varying_click_track.py --start-bpm 90 --end-bpm 150 --seconds 60
+  python tests/play_varying_click_track.py --pattern steps --step-bpms 100,120,140,160 --step-seconds 8
+"""
+
+from __future__ import annotations
+
+import argparse
+import math
+import time
+
+import numpy as np
+import sounddevice as sd
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Play varying-BPM click track")
+    parser.add_argument("--device", default=None, help="Output audio device name or index")
+    parser.add_argument("--sample-rate", type=int, default=44100, help="Output sample rate")
+    parser.add_argument("--seconds", type=float, default=60.0, help="Playback duration")
+    parser.add_argument(
+        "--stabilize-seconds",
+        type=float,
+        default=5.0,
+        help="Play initial BPM for this many seconds before varying",
+    )
+    parser.add_argument("--pattern", choices=("sweep", "steps"), default="sweep")
+
+    # Sweep options
+    parser.add_argument("--start-bpm", type=float, default=90.0, help="Sweep start BPM")
+    parser.add_argument("--end-bpm", type=float, default=150.0, help="Sweep end BPM")
+
+    # Step options
+    parser.add_argument(
+        "--step-bpms",
+        default="100,120,140,160",
+        help="Comma-separated BPMs for step mode",
+    )
+    parser.add_argument("--step-seconds", type=float, default=8.0, help="Seconds per BPM step")
+
+    # Click tone options
+    parser.add_argument("--click-ms", type=float, default=25.0, help="Click duration")
+    parser.add_argument("--accent-every", type=int, default=4, help="Accent every N beats")
+    parser.add_argument(
+        "--hold-beats",
+        type=int,
+        default=1,
+        help="Hold BPM for this many beats before recalculating",
+    )
+    return parser.parse_args()
+
+
+def bpm_for_time(t_s: float, args: argparse.Namespace, step_bpms: list[float]) -> float:
+    if t_s < args.stabilize_seconds:
+        return args.start_bpm if args.pattern == "sweep" else (step_bpms[0] if step_bpms else 120.0)
+
+    adj_t = t_s - args.stabilize_seconds
+    if args.pattern == "sweep":
+        active_seconds = max(1e-6, args.seconds - args.stabilize_seconds)
+        if active_seconds <= 0:
+            return args.start_bpm
+        alpha = min(1.0, max(0.0, adj_t / active_seconds))
+        return args.start_bpm + (args.end_bpm - args.start_bpm) * alpha
+
+    if not step_bpms:
+        return 120.0
+    if args.step_seconds <= 0:
+        return step_bpms[0]
+    idx = int(adj_t // args.step_seconds) % len(step_bpms)
+    return step_bpms[idx]
+
+
+def main() -> int:
+    args = parse_args()
+    if args.seconds <= 0:
+        raise SystemExit("--seconds must be > 0")
+    if args.sample_rate <= 0:
+        raise SystemExit("--sample-rate must be > 0")
+
+    step_bpms = [float(x.strip()) for x in args.step_bpms.split(",") if x.strip()]
+    click_samples = max(1, int(args.click_ms * args.sample_rate / 1000.0))
+
+    state = {
+        "t": 0.0,  # playback time in seconds
+        "next_beat": 0.0,
+        "beat_idx": 0,
+        "current_bpm": 0.0,
+        "held_bpm": 0.0,
+        "hold_counter": 0,
+        "click_remaining": 0,
+        "click_phase": 0,
+        "click_freq": 1320.0,
+        "click_amp": 0.6,
+    }
+
+    def callback(outdata, frames, _time_info, status):
+        if status:
+            print(f"audio status: {status}")
+        block = np.zeros(frames, dtype=np.float32)
+        for i in range(frames):
+            t = state["t"]
+            dynamic_bpm = bpm_for_time(t, args, step_bpms)
+            state["current_bpm"] = dynamic_bpm
+            bpm = state["held_bpm"] if state["held_bpm"] > 0 else dynamic_bpm
+            beat_interval = 60.0 / max(1e-6, bpm)
+
+            if t >= state["next_beat"]:
+                hold_beats = max(1, int(args.hold_beats))
+                if state["hold_counter"] <= 0:
+                    state["held_bpm"] = dynamic_bpm
+                    state["hold_counter"] = hold_beats
+                state["hold_counter"] -= 1
+                bpm = state["held_bpm"]
+                beat_interval = 60.0 / max(1e-6, bpm)
+                state["beat_idx"] += 1
+                state["next_beat"] = t + beat_interval
+                state["click_remaining"] = click_samples
+                state["click_phase"] = 0
+                accented = (
+                    args.accent_every > 0 and state["beat_idx"] % args.accent_every == 1
+                )
+                state["click_freq"] = 1760.0 if accented else 1320.0
+                state["click_amp"] = 0.9 if accented else 0.6
+
+            if state["click_remaining"] > 0:
+                p = state["click_phase"]
+                env = math.exp(-8.0 * (p / click_samples))
+                sample = state["click_amp"] * env * math.sin(
+                    2.0 * math.pi * state["click_freq"] * (p / args.sample_rate)
+                )
+                block[i] = sample
+                state["click_phase"] += 1
+                state["click_remaining"] -= 1
+
+            state["t"] += 1.0 / args.sample_rate
+
+        outdata[:, 0] = block
+
+    print(
+        f"Playing varying click track for {args.seconds:.1f}s ({args.pattern}), "
+        f"stabilize={args.stabilize_seconds:.1f}s"
+    )
+    with sd.OutputStream(
+        samplerate=args.sample_rate,
+        channels=1,
+        dtype="float32",
+        callback=callback,
+        device=args.device,
+        blocksize=0,
+    ):
+        start = time.time()
+        last_printed_beat = 0
+        while (time.time() - start) < args.seconds:
+            beat_idx = int(state["beat_idx"])
+            if beat_idx != last_printed_beat:
+                last_printed_beat = beat_idx
+                print(
+                    f"beat={beat_idx:04d} bpm={state['held_bpm']:.2f} "
+                    f"(target={state['current_bpm']:.2f})"
+                )
+            time.sleep(0.05)
+
+    print("Done.")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

tests/test_browser.py

@@ -2,7 +2,7 @@
 """
 Browser automation tests using Selenium.
 Tests run against the device in an actual browser. Target host defaults to
-``192.168.4.1``; override with ``LED_CONTROLLER_DEVICE_IP`` (IP or hostname,
+``127.0.0.1:5000``; override with ``LED_CONTROLLER_DEVICE_IP`` (IP or hostname,
 or a full ``http://`` / ``https://`` base URL).
 
 Fixed delays between UI steps use ``LED_CONTROLLER_BROWSER_SLEEP_SCALE``
@@ -49,7 +49,7 @@ from selenium.common.exceptions import (
     ElementNotInteractableException,
 )
 
-_DEFAULT_DEVICE_HOST = "192.168.4.1"
+_DEFAULT_DEVICE_HOST = "127.0.0.1:5000"
 
 
 def _device_base_url() -> str: