Adafruit MIDI FeatherWing Kit

Turn your Feather into a song-bird with this musically-enabled FeatherWing that adds MIDI input and output jacks to just about any Feather.

You get both input and output DIN-5 MIDI jacks, a 3V optically isolator so you can interface with MIDI on 3.3V logic/power microcontrollers, and two blinky indicator LEDs underneath the jacks to help you know when data is sent and received.

For those who have moved from DIN-5 jacks to "TRS MIDI A" 3.5mm jacks, spots are provided to solder in 3.5mm stereo jacks (optional and not included by default).

This FeatherWing uses the hardware serial pins RX and TX to send/receive data, requiring a baud rate of 31250 to send/receive MIDI packet data. MIDI OUT is connected to the UART TX pin, and MIDI IN is connected to the UART RX pin.

This works with all Feathers except those with USB-Serial converters that use the UART pins (such as ESP8266 Huzzah Feather, 328p Feather, and nRF52 Feather) because they use the hardware UART for programming.

The kit comes with an assembled PCB with all surface-mount components attached, loose headers, and two loose DIN-5 jacks. Some basic soldering is required to assemble the header and DIN jacks in place.