When I try to download the m2ret firmware through arduino ide i keep getting fatal error pwn_lib.h
A set of M2 general purpose I/O routines has been added to M2RET recently. I am seeing that Macchina does not have these libraries copied to their own github account. I should be able to go make that happen. In the mean time, here is the github account where you’ll find M2_12VIO and pwm_lib. You potentially need both.
I figured it out. I used a windows machine. But thanks