I am trying to set up a project where I communicate a GPS module with a GSM module to send the data over the internet.
When trying each one separately, it works great. I am using the GPS module on ports (RX=10,TX=11,baud=9600) and the SIM900 (GSM) module on ports (RX=12,TX=13,baud=19200) from a Arduino Mega 2560.
However, if I put both together with the same configuration, it stops working.
The last test I did was to get the code where GPS module is working, and only adds SIM900.begin(19200) to it, and then it stopped with a error point problem in wiring.
That’s strange, because this unique line breaks all the set up out.
Does anyone has any clue about what is going on?
Thanks a lot!