GRIDI - A large scale midi sequencer
The project was programmed in Max to communicate with the arduino (which was programmed by Michael Zeron in Sketch) and receive the transport information from Ableton live, meaning the beat, the bar etc. It also sends the BPM information as well as a midi write command for each of the touch points on the sequencer. Programmed by Ronen Peri, it is now developed into a stand alone program which can run using max runtime.
Here is a tutorial which shows how GRIDI works
https://www.youtube.com/watch?v=2-3D7vjdTiY