pi-multifx-pedal

Author	SHA1	Message	Date
shawn	d9682f3bea	Build all FX blocks: gate, comp, boost/od/dist/fuzz, eq, mod (chorus/flanger/phaser/tremolo/vibrato), delay, reverb (Schroeder), volume - 15 FX blocks implemented with per-block state isolation - All blocks <500us per 256-sample block (reverb closest at 465us on x86) - 57 unit tests all passing (per-effect, chain, bypass, state isolation) - Benchmark script at scripts/benchmark_fx.py - Vectorised delay reads via read_block_varying() - scipy.lfilter for EQ (3-band RBJ) and reverb damping - Fixed _DelayLine.write_block wraparound crash for large blocks - Comb/Allpass buffers sized to BLOCK_SIZE * 2 minimum	2026-06-07 23:32:28 -04:00
shawn	ce06a4360d	Build: hardware UI layer — footswitch debounce, RGB LEDs, OLED display - footswitch.py: GPIO debounce engine (20ms window), long-press detection (500ms), threaded poll loop with virtual pin support for testing - leds.py: WS2812B/APA102 RGB LED controller with bypass indicator (red/green), preset navigation scan animation, tap tempo blip, configurable brightness (0.0-1.0) - display.py: SSD1306 128x64 OLED renderer with preset mode (bank + preset name + FX chain), tuner mode (note + cents bar), FX edit (parameter bar), settings mode, boot splash - __init__.py: Public API re-exports for all 3 modules - tests/test_ui.py: 37 tests — debounce engine, GPIO simulation, short/long press boundary, LED pixel control, bypass colors, display mode rendering (preset/tuner/fx_edit/settings) - scripts/ui_test.py: standalone test tool (python scripts/ui_test.py --all or --interactive)	2026-06-07 23:26:44 -04:00
shawn	ed29748a62	Initial scaffold: Pi Multi-FX Pedal with NAM A2, IR cab, multi-FX, MIDI, stomp UI	2026-06-07 23:22:43 -04:00

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SHA1

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Date

d9682f3bea

Build all FX blocks: gate, comp, boost/od/dist/fuzz, eq, mod (chorus/flanger/phaser/tremolo/vibrato), delay, reverb (Schroeder), volume

- 15 FX blocks implemented with per-block state isolation
- All blocks <500us per 256-sample block (reverb closest at 465us on x86)
- 57 unit tests all passing (per-effect, chain, bypass, state isolation)
- Benchmark script at scripts/benchmark_fx.py
- Vectorised delay reads via read_block_varying()
- scipy.lfilter for EQ (3-band RBJ) and reverb damping
- Fixed _DelayLine.write_block wraparound crash for large blocks
- Comb/Allpass buffers sized to BLOCK_SIZE * 2 minimum

2026-06-07 23:32:28 -04:00

shawn

ce06a4360d

Build: hardware UI layer — footswitch debounce, RGB LEDs, OLED display

- footswitch.py: GPIO debounce engine (20ms window), long-press detection
  (500ms), threaded poll loop with virtual pin support for testing
- leds.py: WS2812B/APA102 RGB LED controller with bypass indicator
  (red/green), preset navigation scan animation, tap tempo blip,
  configurable brightness (0.0-1.0)
- display.py: SSD1306 128x64 OLED renderer with preset mode (bank +
  preset name + FX chain), tuner mode (note + cents bar), FX edit
  (parameter bar), settings mode, boot splash
- __init__.py: Public API re-exports for all 3 modules
- tests/test_ui.py: 37 tests — debounce engine, GPIO simulation,
  short/long press boundary, LED pixel control, bypass colors,
  display mode rendering (preset/tuner/fx_edit/settings)
- scripts/ui_test.py: standalone test tool (python scripts/ui_test.py
  --all or --interactive)

2026-06-07 23:26:44 -04:00

shawn

ed29748a62

Initial scaffold: Pi Multi-FX Pedal with NAM A2, IR cab, multi-FX, MIDI, stomp UI

2026-06-07 23:22:43 -04:00

3 Commits