I seem to have fallen a bit behind on documenting things, but the schematic (github.com/tebl/BulkyMIDI-32/blob/main/documentation/schematic/BulkyMIDI-32%20Channel%202.pdf) and source code is available (github.com/tebl/BulkyMIDI-32/tree/main/software/arduino/ChannelMonitor). The circuit is pretty simple as it uses ready-made libraries to decode the messages, I used a Pro Micro in particular since it has an extra HW UART as I find that works better. Could probably simplify the LEDs to skip the transistors, I just had that from copying the first channel monitor schematic.
Nice! Do you have a write-up on the channel monitor using the Arduino? I'm building my own MIDI mountain and this would be a nice addition :)
I seem to have fallen a bit behind on documenting things, but the schematic (github.com/tebl/BulkyMIDI-32/blob/main/documentation/schematic/BulkyMIDI-32%20Channel%202.pdf) and source code is available (github.com/tebl/BulkyMIDI-32/tree/main/software/arduino/ChannelMonitor).
The circuit is pretty simple as it uses ready-made libraries to decode the messages, I used a Pro Micro in particular since it has an extra HW UART as I find that works better. Could probably simplify the LEDs to skip the transistors, I just had that from copying the first channel monitor schematic.