Proof of concept: Using the monome to control a 9g servo via Arduino. The "brain" is a Python program running self-made libraries. Python converts Monome input into Arduino commands. The Arduino is programmed to listen to the commands from serial, and executes them as servo movements.
Thanks to Mr. Servo Man for helping with the demo! 8-)
Monome -> (serial via USB) -> Python -> (serial via USB) -> Arduino Uno -> Servo