I have done some extensive searching to find a basic description and example code to drive 2 rainbowduinos via an arduino mega and have not found anything complete. I am attempting to use inputs on the arduino to drive changes in the images on the rainbowduino. I assume i will use i2c to do this, but have not found any concrete information for arduino to v3 rainbowduino master/slave setup.
Any help someone could provide would be greatly appreciated.
note, i can connect and program both the arduino and rainbowduino v3 fine, so first step complete.