I can not communicatewith my APM2, I had it working for years! but now it does not work. I have tried install and uninstall the latest mission planner with no luck
I have even tried to install the Arduino mega 2560 development kit from arduino.cc also no luck
Theo old driver dated 15/11/2012 has the same issue as the newer Arduino signed driver dated 4/01/2013
I have spent so many hour on this issue, the Arduino Mega 2560 in my device manager keeps coming up with a yellow exclamation mark?
all light on board are normal with GPS flashing initially then solid