I am using the GSM Shield with RFRobot backpack and I am running the program Web Client example. I have not yet set a PIN on the GSM which is for the most part in its defaulted state. I have not set a login or password either yet on the sm5100b. /* Web client This sketch connects to a website …

GSM Web Client

shokoishida June 15, 2018, 1:22am 4

Maybe you need a GSM shield? You can go to Perfectjammer

There's a lot of information out there

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