Building a Simple DIY USB MIDI Controller using Teensy
Build an Arduino MIDI Controller (D.I.Y.) - YouTube
Chocolate Video Game Controller Chocolate Playstation - Etsy
How To Make Your Own DIY MIDI Controller - DJ TechTools
10 Amazing DIY MIDI Controllers Made with Arduino | All3DP
Amazon.com: MENEEA Wireless Controller Keyboard for PS5, Bluetooth 3.0 Mini Portable Gamepad Chatpad with Built-in Speaker & 3.5MM Audio Jack for Playstation 5 Voice Chat Board for Messaging and Gaming Live Chat :
Turning GameCube & N64 Pads Into MIDI Controllers | Hackaday