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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@user97438
after adding sendAtCommand("AT+CMEE=1"); I got the error code : 10 , which means " SIM card is not inserted"
we changed the direction to insert SIM , but got the same error, what could be wrong?