MIDI In/Thru/Out Module – 3.3/5V operation

MIDI In/Out/Thru Module is a DIY part. It connects the custom logic to the external MIDI bus via single input, output and through circular DIN-5 sockets.

The module is capable to work with either single +5V DC or both +5V and 3.3V to connect MIDI and custom logic voltage domains. As MIDI requires +5V for legacy compatibility and the modern microcontrollers and FPGAs support +5V operation, it is convenient to have both voltages in operation.