Please note: I am waiting on the adapter boards for the ribbon wiring, items will ship 8 August 2025
This a a modified UMR2 MIDI retrofit board specifically designed for use inside a Yamaha CS01 (I or II) without removing the speaker and requires a hole to be drilled for the TRS MIDI jack. The device has be simplified by removing connections not required for the CS01 so it CANNOT be used with other devices. It also features psiMIDI which means it can accept either 3.5 TRS A or TRS B MIDI cable
This is an DIY kit which includes:
- CS01 UMR2 PCB: Complete and preprogrammed with UMR2 firmware
- Ribbon cable, wires, TRS MIDI Jack
- 2m long TRS MIDI A Cable
Install Instructions:
Coming soon
CC BY SA 4.0
Original Design by John Staskevich, 2017
GitHub - staskevich/UMR2: Universal MIDI retrofit PCB for matrixed-switch keyboards.
MSW Modified CS01 Variant (files coming soon)
