Merged my original MIDI interface design with @johnedgarpark‘s DIN connector-on-a-Feather-protoboard design to produce a Classic MIDI FeatherWing board via @oshpark . Supports DIN-5 and 3.5mm Type B jacks. Tested with CircuitPython 4.1.0beta1.
The Classic MIDI FeatherWing interface is an Adafruit Feather-compatible module. Deriving its power from the host Feather’s 3.3V power, the interface converts incoming and outgoing classic MIDI current-loop input and output to Feather UART (RX and TX) logic pins.
The wing provides on-board input and output footprints for 3.5mm TRS Type B and DIN-5 connectors while maintaining the Feather dimensional format, thanks to John Park’s inspirational Feather MIDI Nub design (Twitter: @johnedgarpark). The MIDI input is an optically-isolated connection. MIDI output is buffered and current-limited. On-board receive (RX) and transmit (TX) LEDs indicate incoming and outgoing signals.
The Classic MIDI interface was tested with CircuitPython version 4.1.0 beta 1 and earlier releases. Example code is provided in the repository. Additional code examples can be found within the adafruit__midi CircuitPython examples distribution.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.