I ported over this “plasma” display from the Meggy Jr. to the Rainbowduino as the basis for a project I’m doing to make a rainbow clock. The code isn’t as cleaned up or fast as I’d like it yet, but the display is pretty.
Yes, you load this on the Rainbowduino replacing the default software. Right now, there’s no serial/I2C control of this, but the final version will have some controls for setting a time and I/O between the right and left module so they show the same time and change together.
I made a first Rainbowduino test with the Plasma program using this setup:
4 RGB matrix driven by 4 Rainbowduino
and a RGB Ledstrip driven by Arduino via PWM.
Some polystyrene to diffuse the light and nothing more…