Unsped Shield Parts.

LED Matrix from Sparkfun, and 8 pots.

The idea is to use the OOTB unsped shield. Wire the LED side of it to the matrix, which I am assuming should be fairly straight forward. Then find a way to wire the 8 pots so that each one controls a row with the full left to full right turn being equal to columns 1 – 8.

One issue I’ve already thought of is the serial is expecting button press and button releases, the pots can only register a single value, unless I can find some way to “fire” an on/off signal, this might need a tweak to the serial (which may or may not (I expect may) be a show stopped for this project).