Use your USB-only MIDI controller with "classic MIDI" (DIN-5 or TRS 3.5mm) synths -- no computer required! The USB Host Feather RP2040 does the work for you. John Park Learn Guide coming soon.Visit the Adafruit shop online - http://www.adafruit.com-----------------------------------------LIVE CHAT IS HERE! http://adafru.it/discordSubscribe to Adafruit on YouTube: http://adafru.it/subscribeNew tutorials on the Adafruit Learning System: http://learn.adafruit.com/-----------------------------------------