David Gwilliam
b5c81d79f0
1. **Hardware switch**: Replaced backlight PWM control (GPIO 22) with WS2812B RGB LED (GPIO 8) - Removed analog brightness levels (0-255) - Added bit-bang WS2812B protocol implementation (`setRGB()`) - Defined color palette: RED, GREEN, BLUE, WHITE, OFF 2. **Visual feedback improvements**: - **Silent state**: LED OFF (was dim backlight) - **Alarm state**: Blinks RED/WHITE (was full brightness on/off) - **Button press**: Shows WHITE while held (was full brightness) - **Confirmations**: Green flash for SILENCE commands (was dim flash) 3. **Bug fixes**: - Added edge detection for button to prevent repeated triggers - Added explicit LED OFF commands throughout setup to prevent lingering states - Button release now properly resets ALARM → SILENT 4. **Code cleanup**: Removed section divider comments, condensed enum/constant declarations 5. **Tooling**: Added `mise.toml` task for monitor-only (`mon`) - **More visible alerts**: RGB colors provide clearer state indication than brightness levels - **Better reliability**: Explicit state management prevents LED staying on unintentionally - **Improved UX**: Button can now manually cancel alarms with visual confirmation