Method 2: Using the SM Arduino Raspberry Pi Replacement Kit Sequent Microsystems Arduino Uno, Nano, Teensy, Feather or ESP32 Raspberry Pi Replacement Kit is an inexpensive adapter which can be used to ...
All switches are connected at one end to a pull-up input, and connect to ground on close. The analog input for the food pedal expects a potentiometer (e.g. 10k). Note that the MIDI output is used.