How to Make an Arduino MIDI Footswitch

I’ve been playing a lot more music during my time stuck at home due to the COVID outbreak. I realized that I can create loops to enable myself to play songs solo since I can’t meet up to play with friends. However, I found it difficult to trigger loops when my hands were occupied playing instruments. I decided to create this MIDI footswitch which connects to the audio software I use for live looping. It lets me trigger tracks and phases in the loop without having to touch the keyboard. It also only costs