use a 18.5mm wide FT232RL board. ensure the jumper is set to 3.3V. works with the free original app.

after sifting through a lot of fake, poisoned results and paid ads that make this difficult to find, use the original free app. Patchi Lab V1 - Marcel's Tama Spa & Repair's. only the didgeridoo worked on bbamorachi tools web app.

2mm smd pogo pins worked for me. put some UV resin over your wires so that your friends dont rip them off the device when using it.