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    Sim800l module

    Scheduled Pinned Locked Moved PRODUCTS
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    • S Offline
      Souheil
      last edited by

      I can't find any example about sim800l module. Can you help with that.

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      • m5stackM Offline
        m5stack
        last edited by

        it use AT command, so you can use the serial<->serial2 program to test it.
        if (Serial2.available()) {
        int inByte = Serial2.read();
        Serial.write(inByte);
        }

        // read from port 0, send to port 1:
        if (Serial.available()) {
        int inByte = Serial.read();
        Serial2.write(inByte);
        }

        bps=9600

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        • S Offline
          Souheil
          last edited by

          Can I use:
          HardwareSerial Serial1(1);
          to declare RX and Tx for communication between the board and sim800l module?

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          • m5stackM Offline
            m5stack
            last edited by

            no serial1, m5stack offer serial0 and serial2

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