I’m trying to get some data on the internet with a SIM800L shield and a SIM-card. On a controllino MINI I finally got the SIM running with stable connection. I’m using the interrupt pins for TX and RX (2, 3), and for now it seems to work just fine.
I tried this exact setup on two diferent MAXI’s over and over again (interrupt pins 18, 19), but it just won’t work! Any suggestions?
This discussion was modified 1 year ago by w-mets.