Atom Lite connect to sim800, RX/TX Pinout HELP
alien last edited by
I am looking to connect SIM800 model to ATOM Lite, but have a problem to understand witch pinouts are RX and TX
can anyone help with the Atom Lite PINOUT?
also is there a similar project, I want to send some data to server
felmue last edited by
on the M5Atom there are no predefined pins assigned to RX2 and TX2. GPIO21 and GPIO25 are assigned to I2C so I would not use those. I have successfully tried GPIO19 for RX2 and GPIO22 for TX2.