I have a trial COM port monitor (Eltima) and it shows some activity on the COM’s either on 8 for Debug when I upload or on the 7 for Modem when I open the Serial Monitor …
but there I can see a ERROR on port 8:
[16/03/2016 14:26:45]
93 IRP_MJ_WRITE - Request transfers data from a client to a COM port (COM8) - 0 bytes of 3
STATUS_INVALID_PARAMETER
I really want my RePhone (( to work in Arduino …