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2 votes
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SIM900A: Network depersonalization required

I have made experience with sim 800l, it works like a charm. Now I got a new SIM900A module, interferencing it with (RP over python), AT command returns ok, and other basic AT commands, so not the ...
Erkman's user avatar
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SIM800L sends back the same AT command String that was sent to it from ESP32

My objective is to send the command AT to the SIM800L board and receive an OK. The problem is the data being received through the serial is exactly the same that was sent to the SIM800L module: the ...
elpegot's user avatar