ICOMSat Sim900 / Mega2560

chadvader:
Hey, GOOD news!
I had the amazing idea of opening the GSM_Shield.cpp and change all the "mySerial" for "Serial1", and deleting all the #include NewSoftSerial
By doing this, I just changed the comunication to Serial1 (pins 18 and 19) of MEGA, so I jumped the RX to the TX to these pins aaaaaand... the results are the following:

system startup
no call
no call
no call

...And when I called the shield from my cellphone:

incoming voice call from xxxxxxxxx (my number)

YES, it's working!! I'm so happy!! :slight_smile: That's it my friends!

Great news!

I've also tried renaming the MySerial instances to Serial1, but I did not remove the #include parts. Definitely going to try this, thanks mate.

I only have to have GSM functionality so the tiny number of pins aren't a problem for me:)

Good luck.