QT Py RP2040 USB to Serial MIDI Friends

by Liz Clark

published April 26, 2022, last updated April 26, 2022

posted in CircuitPython Breakout Boards Programming/ MicroPython / CircuitPython Raspberry Pi/ RP2040

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15

Updated

Beginner

Project guide

Solder the DIN-5 MIDI Friend

These breakouts are assembled using point to point soldering, which involves bridging solder connections to complete signal paths. Make sure that no pins become bridged accidentally.

DIN-5 Jack

Insert the DIN-5 jack into the breakout board. Place the five connection pins in the center of the board. Solder the DIN-5 jack in place.

Data Signal

Insert a 10Ω resistor between the TX header pin and the DIN-5 jack's pin 5.

Solder the resistor in place. Connect the resistor to the pins by bridging the solder connections.

GND Signal

Cut and strip a piece of wire for the ground connection.

Insert the wire between the DIN-5's pin 2 and the GND header.

Solder the wire in place. Connect the wire to the pins by bridging the solder connections.

3V Signal

Insert a 30Ω resistor between the 3V header pin and the DIN-5 jack's pin 4.

Solder the resistor in place. Connect the resistor to the DIN-5 jack's pin 4 by bridging the solder connections.

Bend the remaining resistor leg so that it is next to the 3V header pin. Connect the resistor to 3V by bridging the solder connections.

And that completes your DIN-5 MIDI friend!

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