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    Posts made by jorge5a

    • COM.GSM Module

      Hi:

      I have attached a COM.GSM to my M5stack basic.
      I can communicate with at commands but I can't send SMS or to do any GSM communication
      It likes as the SIM can't connect with operator. I have tested with 3 SIM and I have tested all SIM's on a smartphone for sure that works fine. All SIMs I have tested have desactivated PIN security.
      The GSM module blinks a blues led every second, as not registred

      Could you help me?

      Thanks

      posted in Modules
      J
      jorge5a