Hello everyone, I am trying to use the arduino module sim800l but when i try to send some at command, like a siple AT, I get in response '???' in loop and I do understand the cause of this. Another problem is the alimentation of this module that requires 2-3 A when it send messages, for now i would…

Comunication with module sim800l

andrealorenzetti123321 September 2, 2021, 12:57pm 7

do you know how could i resolve the alimentation problem? i bought this battesies becouse i watched a video on youtube but it doesnt seem working

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