HELLO EVERYBODY
i would like to know if it's possible to connect a 5V serial devise like a simcom sim900 and a adafruit ultimate GPS with the DUE.
i dont want to power the serial devise with the board (for that i use a 5v lithium bat)
i just want to plug the TX and RX pin together.
if its impossible...
i also have a UNO, but there is only on TX RX pin on this one.
Do you tink i can be able to plug both of this devise on the same uno card.
i would like to make a kind on ELT(emergency locator transmitter)
when an impact happen, an accelerometer will start the gps.
after that; the gms module will send my position to a cellphone
tanks for your help