Solder the TRS-A MIDI Friend

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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.

TRS Jack

Insert the TRS jack into the breakout board. Solder the TRS jack in place.

Data Signal

Insert a 10Ω resistor next to the TRS jack's pin 5 (tip).

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

Cut and splice a piece of wire to connect the resistor to the TX header pin. Insert the wire onto the breakout board and solder it in place. 

Complete the signal connection by bridging the wire's solder points to the TX pin and resistor.

GND Signal

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

Insert the wire between the TRS jack's pin 1 (sleeve) 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 next to the TRS jack's pin 2 (ring).

Solder the resistor in place. Connect the resistor to the TRS jack's pin 2 by bridging the solder connections.

Cut and splice a piece of wire to connect the resistor to the 3V header pin. Insert the wire onto the breakout board and solder it in place. 

Complete the signal connection by bridging the wire's solder points to the 3V pin and resistor.

And that completes your TRS-A MIDI friend!

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This guide was first published on Apr 26, 2022. It was last updated on Apr 26, 2022.

This page (Solder the TRS-A MIDI Friend) was last updated on Apr 25, 2022.

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