I’ve now got my 4×4 button pad communicating with the native monome software, using the monome protocol. As far as I know, this is the first Arduino-based monome compatible, and perhaps the first third-party monome-compatible device of any kind.
Nice work! Hit the link for an in-depth explanation.
Monomuino on Upwardnotnorthward.com- Link
Full-colour RGB monome clone (Trinome?) – Link