Marcel Licence is a new developer who created some great basic modules which are running on a basic MCU ESP32 (Arduino) and mostly need only a few circuits.
- Sampling MIDI Module based on ESP32 A1S AI Thinker 2.2 board
- Looper based on ESP32 A1S AI Thinker 2.2. board
- Drum-Computer based on ESP32 with additional PCM5102 DAC
- Basic Synth ( Poly / mono) based on ESP32 with additional PCM5102 DAC
The Code is on Github, Videos on YT
I have used the Drum-Computer Code to add this modules inside my Korg Volca Beats which now sounds like a 908 or 706 … costs 15€ … and the volca is not damaged in total.
Check his Videos, I belive, You will find a simple way to add these raw implementation as new modules into a Module. He created very simple code which sounds really great and it was easy for me to change the code to let it fir into me needs.
The AI Thinker boards are a bit more tricky because they do not provide a lot of free GPIO-Pins to implement local controles ( pots, switches, sliders) and I belive, they stick with MIDI.
My mod of the Volca Beats: Sorry for my bad english …