Files
loopy_midi_controller/include
ash 07e5cd8994 Rewrite MUX: WS2812C LEDs (NeoPixel) + 74HC165 buttons
PixelStomp MUX uses:
- WS2812C LEDs: one data line via DAT (GPIO 9), NeoPixel protocol
- 74HC165 shift register: LD/CLK/DI for reading 8 button states

Changes:
- Use Adafruit NeoPixel library for LED control
- Proper 74HC165 parallel-load shift-in for buttons
- 8 switches + 8 LEDs (was incorrectly 10)
- Diagnostic commands: dump, ledtest, red, green, blue, read
2026-06-23 13:38:51 +00:00
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