Hi, I am developing a circuit based in the arduino uno schematic (only using de ATMEGA 328 with the bootloader), I wanna use the RX and TX ports to comunicate the ATMEGA 328 with the GSM shield, plus a GPS. I dont going to use the SIM900 chip, my dude is: Can I use the RX and TX ports of the ATMEGA …

Using RX and Tx in arduino uno (ATMEGA BOOTLOADER) + GSM shield+GPS of Quectel

Isaac96 August 9, 2015, 12:03am 4

Somebody else will make it clearer.

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