The PiCap from Bare Conductive uses conductive ink to transfer touch impulses to the Raspberry Pi. They’ve written a lovely little tutorial on how to do it yourself and have put the code on GitHub. If you want to do it “properly”, you’ll need to follow their screen printing tutorial but you can get similar results by just painting the note ‘buttons’ on a piece of paper or card. The code is based on the FluidSynth synthesizer which uses sound fonts and is the basis for my own music tech project, the Music Box. Take a look at the tutorial here.
hi I’m building an analog SYNTHESIZER made up of various modules I wanted to know if it was possible to mount it on a RASPBERRY PICO Pi in my possession I also have a RASPBERRY Pi4 mod B 2GB best regards Roberto Zora
I think a Pico will give you a better result than a full Pi as the Pi is sometimes too busy doing operating system stuff. Do a Google for Pi Pico synthesizer – there’s a few there! Good luck!