Workshop 2: IMSI and IMEI

The next step is to load a sketch that allows you to send AT (attention) commands directly to the modem on the board.

Load the following sketch and upload it to your device.

// baud rate used for both Serial ports
unsigned long baud = 115200;

void setup() {
  // reset the ublox module
  pinMode(SARA_RESETN, OUTPUT);
  digitalWrite(SARA_RESETN, HIGH);
  delay(100);
  digitalWrite(SARA_RESETN, LOW);

  Serial.begin(baud);
  SerialSARA.begin(baud);
}

void loop() {
  if (Serial.available()) {
    SerialSARA.write(Serial.read());
  }

  if (SerialSARA.available()) {
    Serial.write(SerialSARA.read());
  }
}

Open the serial monitor and type the following command to get the IMSI and IMEI numbers.

If you’re not getting any output, check that you have the correct baud-rate and new line / carriage return setting.