Files
python-editor/workspace/code/adc_slider_demo.py
Jimmy ca0ca6fe7e Add local-mode workspace, ZIP import/export, and richer pin/ADC/serial sims
Boot:
- Editor now picks local vs server mode based on URL flag, sign-in
  state, and a stale local-mode flag. Signed-in users are no longer
  bounced to IndexedDB if they had previously clicked "Use locally".

Local mode:
- New LocalWorkspaceClient (src/static/local-workspace.js) with
  pluggable IndexedDB and File System Access backends. Picked folder
  handles persist across reloads with a Reconnect button when the
  permission lapses.
- Static-only host: scripts/serve_static_editor.py serves src/static/
  with COOP/COEP so SharedArrayBuffer-backed sims keep working.
- Bundled MicroPython stubs ship under src/static/bundled-lib/ for
  static hosting; FastAPI also exposes them at /api/public/lib-bundle.

Workspace import / export:
- Zero-dep ZIP encoder + reader (STORE + DEFLATE via
  DecompressionStream). Export/Import buttons in the workspace badge
  work in both local and server modes; imports are confined to code/.

Pin / ADC / Serial simulation:
- machine.py grows ADC, UART, expanded Pin, and PWM mocks, all driven
  by SharedArrayBuffer when cross-origin isolated and falling back to
  postMessage + [pin-out] stdout markers otherwise — pins, ADC slider,
  and serial input now keep working over plain HTTP / LAN-IP origins.
- NeoPixel pins are claimed via a [pin-claim] marker and dropped from
  the Pins panel so the data line doesn't flicker per write().
- New demos: adc_slider_demo.py, pin_demo.py, serial_demo.py.

Lib layout:
- Single source of truth at repo lib/; workspace/lib/ caching layer
  removed and the directory deleted. Filesystem service reads stubs
  directly from PROJECT_ROOT/lib.

UI:
- Home page slimmed to "Sign in" + "Use locally" with optional editor
  / manage-users links. Admin user/invite UI moved to /users.
- Workspace badge gains storage indicator, Folder…/Reconnect, Export,
  Import, and Exit controls.
- Mobile-friendly tweaks: safer-area padding, larger touch targets,
  iOS-zoom-proof serial input, file-tree highlight fix.

Tests:
- test_auth.py patches PROJECT_ROOT for the lib-shared test so the
  repo-root lib refactor stays green. test_api.py asserts the new
  "LED Editor" branding.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-10 06:16:02 +12:00

56 lines
1.2 KiB
Python

"""ADC slider demo — drag the sliders that appear under the editor.
Two simulated ADCs:
* pin 34 — sets the base hue of a rainbow
* pin 35 — sets overall brightness
The strip lights up while the script runs; the values update live (no need to
restart the script when you move the slider).
"""
import time
from machine import ADC, Pin
from neopixel import NeoPixel
NUM_LEDS = 16
strip = NeoPixel(Pin(5, Pin.OUT), NUM_LEDS)
hue_pot = ADC(Pin(34))
bri_pot = ADC(Pin(35))
def hsv_to_rgb(h, s, v):
h = h - int(h)
i = int(h * 6)
f = h * 6 - i
p = v * (1 - s)
q = v * (1 - f * s)
t = v * (1 - (1 - f) * s)
if i == 0:
r, g, b = v, t, p
elif i == 1:
r, g, b = q, v, p
elif i == 2:
r, g, b = p, v, t
elif i == 3:
r, g, b = p, q, v
elif i == 4:
r, g, b = t, p, v
else:
r, g, b = v, p, q
return int(r * 255), int(g * 255), int(b * 255)
print("Move the ADC sliders below the editor while this runs.")
while True:
base_hue = hue_pot.read_u16() / 65535
brightness = bri_pot.read_u16() / 65535
for i in range(NUM_LEDS):
h = (base_hue + i / NUM_LEDS) % 1.0
strip[i] = hsv_to_rgb(h, 1.0, brightness)
strip.write()
time.sleep(0.04)