RK-004 Raspberry Pi Image
Connecting the RPi to the RK-004 requires only 4 wires. The RPi Board will be powered from the RK-004. The PiZero will bolt right in with a straight connector but you can also use a flatcable to make the connection. Below is the pinout of the connector (the upper one with serial signals is for the RPi):
Note that this connector is not just for the RaspBerryPi. Although this is the platform we have released the code for, you can connect any board with serial I/O to it (arduino, etc) and communicate with your music gear.
For RPi’s which are already running a system you can add our repositories like shown in this video. You can connect the RK-004 via the RPi serial port and it will show up like a MIDI port on your system:
curl -sLS https://www.retrokits.com/debian/add.sh | sudo bash
sudo apt-get install rk004d