Rare find
GuitarPedal. A guitar effects box you can build and customize yourself.
github.com/torvalds/GuitarPedal
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Updates
July 2026
- Remove the actual usb-host.c file too
- Merge branch 'fix/parametric-eq-gain' of https://github.com/Legit-Ox/…
- Remove 'ui_sync_changed' and 'last_effect' variables
- Remove "USB HOST" support
- Bulk remove stale SH1106 and TAC5112 code
- Make the WebMIDI app.js SysEx command handling a bit more legible
- Improve on WebMIDI diagnostics in general
- Use custom MIDI-1.0 packetization for SysEx streams
- parametric_eq: fix gain math, pot only delivered ~half the requested dB
- Add minimal status reporting infrastructure
- Allow re-ordering effects
- First round of WebMIDI fixes from testing..
- Massive EQ and MIDI handling rewrite
- Update TAC5112 i2c programming for stereo mode
- Start the process of turning effects into stereo
- Start doing stereo i2s transfers
- Add simple test-board for a magnetic sensor rotary switch design
- Add a few new symbols and footprints
- Merge EEPROM addressing fix from Felix Hoffmann
- Update the "USB Stomp" board to use design blocks
- Add support for the MC24C64 64kbit EEPROM
June 2026
- Update the audio-jacks board
- Only call the ->init() function when the effect is enabled
- Add 47uF hybrid aluminum caps to 3.3V and 5V supplies
- Update the 'dropped sample' debugging to the i2s DMA situation
- Avoid overclocking the rp2354
- Do i2s RX using the same DMA buffer we use for TX
- Start using DMA for i2s transmit
- i2s: mostly fix things up as per previous notes
- Add some notes on my broken - but working - i2s PIO program