There may not be a lot of interest in using Matlab to control a grid, but I was curious to see if it could be done using only Matlab’s serial port functions. Matlab can make calls to C++ (and other languages), so it may be possible to use existing monome libraries and serialosc within Matlab, but that’s not what’s going on here.
This quick demo below shows Matlab generating a 2-channel isomorphic “in-key” keyboard on a grid that sends MIDI to VCV Rack (similar to ISOKB, which I wrote for norns).