You do not even need anything special to build a capacitive pad with a Raspberry Pi Pico. Basically only an insulated pad and maybe a resistor (even though I th

You do not even need anything special to build a capacitive pad with a Raspberry Pi Pico. Basically only an insulated pad and maybe a resistor (even though I think it is even possible to do without). Here is an example of someone building a touch midi controller [0] with nothing more than a custom PCB and some resistors or a touch input device with varied inputs like sliders and buttons [1]. [0] https://github.com/todbot/picotouch https://github.com/todbot/picotouch [1] https://github.com/todbot/picoslidertoy https://github.com/todbot/picoslidertoy