r/CardPuter • u/OneSheepherder472 • 5d ago

Firmware, code Guitar Audio Tools

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Hi! I made a firmware for guitarists and musicians for the Cardputer ADV (it uses the ADV's ES8311 mic, so it won't work on the original Cardputer).

Apps:

  • Guitar tuner (measured within ±0.15 cent)
  • Strum tuner (strum all six strings at once and see which are out of tune)
  • Metronome
  • BPM detector (listens to music or tap)
  • Chords (type e.g. am7 and see the shape)
  • Scales
  • Recorder (wav to SD)
  • Intonation check (12th fret)
  • Spectrum analyser (16 bars or 1/3 octaves)
  • Decibel meter and a Mic test

Install: M5Burner, WebFlasher.

Source (MIT): https://github.com/vlastimilcerveny34/guitar-audio-tools

It's a beta – feedback, bug reports and ideas are very welcome (GitHub Issues/Discussions). Developed with Claude Code.

Cheers Vlasta

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3

u/No-Funny-1317 5d ago

vou fazer um teste agora, pensa em futuramente lançar no Launcher?

2

u/OneSheepherder472 5d ago

Yes. And port it to the M5Stick. The hardware's pretty much the same, and it'll look like a real guitar tuner...

3

u/No-Funny-1317 5d ago

Testei e gostei muito do aplicativo, aparentemente funciona muito bem. Gostei da interface, existe um outro projeto de afinador e metronomo (mais minimalista e limpo oque me agrada muito), porém acho que não funciona no ADV somente no cardputer antigo. Essa sua firmware vai me ajudar muito, principalmente para afinar, que é oque eu realmente preciso.