Topic: can not get computer to communicate ?
Hi, I just got done building a M one Prime and I am using a ramps 1.4 setup.
I can not seem to get arduino to communicate with my ramps? I have good spare ramps board so I tried that and still nothing?
Not sure where to start? its says my com3 port is in use. I have disable and re enabled com3 still nothing. same error.
