MKRGSM 1400 with Arduino SIM Not Working

Kobones · April 13, 2022, 2:11pm

Hello all, I received a new MKRGSM 1400 with antenna and Arduino SIM card a few days ago. After waiting for the SIM to activate, I tried a few example codes to ping different websites. Unfortunately, the board would connect, but the ping always failed. Saying the RTT took -2 or -4 ms.

I've hardcoded the "secret" tab info here as they are the arduino sim defaults for now.

Yesterday I ran this code to see if I could isolate the problem:



// libraries
#include <MKRGSM.h>


// Please enter your sensitive data in the Secret tab or arduino_secrets.h
// PIN Number
const char PINNUMBER[]     = "0000";
// APN data
const char GPRS_APN[]      = "prepay.pelion";
const char GPRS_LOGIN[]    = "arduino";
const char GPRS_PASSWORD[] = "arduino";


// initialize the library instance
GPRS gprs;
GSM gsmAccess(true);     // include a 'true' parameter for debug enabled
GSMServer server(80); // port 80 (http default)

// timeout
const unsigned long __TIMEOUT__ = 10 * 1000;

void setup() {
  // initialize serial communications and wait for port to open:
  Serial.begin(9600);
  Serial.println("nice");
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }



  // connection state
  bool connected = false;

  // Start GSM shield
  // If your SIM has PIN, pass it as a parameter of begin() in quotes
  while (!connected) {
    if ((gsmAccess.begin(PINNUMBER) == GSM_READY) &&
        (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD) == GPRS_READY)) {
      connected = true;
    } else {
      Serial.println("Not connected");
      delay(1000);
    }
  }

  Serial.println("Connected to GPRS network");

  // start server
  server.begin();

  //Get IP.
  IPAddress LocalIP = gprs.getIPAddress();
  Serial.println("Server IP address=");
  Serial.println(LocalIP);
}

void loop() {


  // listen for incoming clients
  GSMClient client = server.available();



  if (client) {
    Serial.println("client is true");
    while (client.connected()) {
      Serial.println("client.connected is true");
      if (client.available()) {
        Serial.println("Receiving request!");
        bool sendResponse = false;
        while (int c = client.read()) {
          if (c == -1) {
            break;
          } else if (c == '\n') {
            sendResponse = true;
          }
        }

        // if you've gotten to the end of the line (received a newline
        // character)
        if (sendResponse) {
          // send a standard http response header
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println();
          client.println("<html>");
          // output the value of each analog input pin
          for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
            client.print("analog input ");
            client.print(analogChannel);
            client.print(" is ");
            client.print(analogRead(analogChannel));
            client.println("<br />");
          }
          client.println("</html>");
          //necessary delay
          delay(1000);
          client.stop();
        }
      } else {
        Serial.println("client.available is false");
      }
    }
    Serial.println("client.connected is false");


  } else {
    Serial.println("client is null");
    delay(1000);
  }
}

Here is the result from the serial monitor:

10:08:44.997 -> ⸮AT

10:08:45.234 -> OK
10:08:45.234 -> AT+IPR=921600

10:08:45.234 -> OK
10:08:45.327 -> AT

10:08:45.370 -> OK
10:08:45.370 -> AT+UPSV=3

10:08:45.370 -> OK
10:08:45.513 -> AT+CPIN?

10:08:45.513 -> ERROR
10:08:45.695 -> AT+CPIN?

10:08:45.695 -> +CPIN: READY
10:08:45.695 -> 
10:08:45.695 -> OK
10:08:45.879 -> AT+CMGF=1

10:08:45.879 -> OK
10:08:46.112 -> AT+UDCONF=1,1

10:08:46.112 -> OK
10:08:46.299 -> AT+CTZU=1

10:08:46.299 -> OK
10:08:46.485 -> AT+UDTMFD=1,2

10:08:46.485 -> OK
10:08:46.714 -> AT+CREG?

10:08:46.714 -> +CREG: 0,0
10:08:46.714 -> 
10:08:46.714 -> OK
10:08:46.901 -> AT+CREG?

10:08:46.901 -> +CREG: 0,0
10:08:46.901 -> 
10:08:46.901 -> OK
10:08:47.088 -> AT+CREG?

10:08:47.088 -> +CREG: 0,0
10:08:47.088 -> 
10:08:47.088 -> OK
10:08:47.322 -> AT+CREG?

10:08:47.322 -> +CREG: 0,0
10:08:47.322 -> 
10:08:47.322 -> OK
10:08:47.507 -> AT+CREG?

10:08:47.507 -> +CREG: 0,0
10:08:47.507 -> 
10:08:47.507 -> OK
10:08:47.692 -> AT+CREG?

10:08:47.692 -> +CREG: 0,0
10:08:47.692 -> 
10:08:47.692 -> OK
10:08:47.922 -> AT+CREG?

10:08:47.922 -> +CREG: 0,0
10:08:47.922 -> 
10:08:47.922 -> OK
10:08:48.014 -> 
10:08:48.014 -> +UMWI: 0,1
10:08:48.014 -> 
10:08:48.014 -> +UMWI: 0,2
10:08:48.014 -> 
10:08:48.014 -> +UMWI: 0,3
10:08:48.014 -> 
10:08:48.014 -> +UMWI: 0,4
10:08:48.154 -> AT+CREG?

10:08:48.154 -> +CREG: 0,0
10:08:48.154 -> 
10:08:48.154 -> OK
10:08:48.339 -> AT+CREG?

10:08:48.339 -> +CREG: 0,0
10:08:48.339 -> 
10:08:48.339 -> OK
10:08:48.526 -> AT+CREG?

10:08:48.526 -> +CREG: 0,0
10:08:48.526 -> 
10:08:48.526 -> OK
10:08:48.757 -> AT+CREG?

10:08:48.757 -> +CREG: 0,0
10:08:48.757 -> 
10:08:48.757 -> OK
10:08:48.945 -> AT+CREG?

10:08:48.945 -> +CREG: 0,0
10:08:48.945 -> 
10:08:48.945 -> OK
10:08:49.127 -> AT+CREG?

10:08:49.127 -> +CREG: 0,0
10:08:49.127 -> 
10:08:49.127 -> OK
10:08:49.365 -> AT+CREG?

10:08:49.365 -> +CREG: 0,0
10:08:49.365 -> 
10:08:49.365 -> OK
10:08:49.547 -> AT+CREG?

10:08:49.547 -> +CREG: 0,0
10:08:49.547 -> 
10:08:49.547 -> OK
10:08:49.784 -> AT+CREG?

10:08:49.784 -> +CREG: 0,0
10:08:49.784 -> 
10:08:49.784 -> OK
10:08:49.968 -> AT+CREG?

10:08:49.968 -> +CREG: 0,0
10:08:49.968 -> 
10:08:49.968 -> OK
10:08:50.150 -> AT+CREG?

10:08:50.150 -> +CREG: 0,0
10:08:50.150 -> 
10:08:50.150 -> OK
10:08:50.381 -> AT+CREG?

10:08:50.381 -> +CREG: 0,0
10:08:50.381 -> 
10:08:50.381 -> OK
10:08:50.570 -> AT+CREG?

10:08:50.570 -> +CREG: 0,0
10:08:50.570 -> 
10:08:50.570 -> OK
10:08:50.756 -> AT+CREG?

10:08:50.756 -> +CREG: 0,0
10:08:50.756 -> 
10:08:50.756 -> OK
10:08:50.990 -> AT+CREG?

10:08:50.990 -> +CREG: 0,0
10:08:50.990 -> 
10:08:50.990 -> OK
10:08:51.174 -> AT+CREG?

10:08:51.174 -> +CREG: 0,0
10:08:51.174 -> 
10:08:51.174 -> OK
10:08:51.360 -> AT+CREG?

10:08:51.360 -> +CREG: 0,0
10:08:51.360 -> 
10:08:51.360 -> OK
10:08:51.592 -> AT+CREG?

10:08:51.592 -> +CREG: 0,0
10:08:51.592 -> 
10:08:51.592 -> OK
10:08:51.777 -> AT+CREG?

10:08:51.777 -> +CREG: 0,0
10:08:51.777 -> 
10:08:51.777 -> OK
10:08:51.962 -> AT+CREG?

10:08:51.962 -> +CREG: 0,0
10:08:51.962 -> 
10:08:51.962 -> OK
10:08:52.193 -> AT+CREG?

10:08:52.193 -> +CREG: 0,0
10:08:52.193 -> 
10:08:52.193 -> OK
10:08:52.382 -> AT+CREG?

10:08:52.382 -> +CREG: 0,5
10:08:52.382 -> 
10:08:52.382 -> OK
10:08:52.570 -> AT+UCALLSTAT=1

10:08:52.570 -> OK
10:08:52.707 -> AT+CGATT=1

10:08:52.707 -> OK
10:08:52.897 -> AT+UPSD=0,1,"prepay.pelion"

10:08:52.897 -> OK
10:08:53.125 -> AT+UPSD=0,6,3

10:08:53.125 -> OK
10:08:53.315 -> AT+UPSD=0,2,"arduino"

10:08:53.315 -> OK
10:08:53.548 -> AT+UPSD=0,3,"arduino"

10:08:53.548 -> OK
10:08:53.729 -> AT+UPSD=0,7,"0.0.0.0"

10:08:53.729 -> OK
10:08:53.916 -> AT+UPSDA=0,3

10:08:59.819 -> OK
10:09:00.051 -> AT+UPSND=0,8

10:09:00.051 -> +UPSND: 0,8,1
10:09:00.051 -> 
10:09:00.051 -> OK
10:09:00.051 -> Connected to GPRS network
10:09:00.051 -> AT+USOCR=6

10:09:00.051 -> +USOCR: 0
10:09:00.051 -> 
10:09:00.051 -> OK
10:09:00.097 -> AT+USOLI=0,80

10:09:00.097 -> OK
10:09:00.097 -> AT+UPSND=0,0

10:09:00.097 -> +UPSND: 0,0,"10.66.35.36"
10:09:00.097 -> 
10:09:00.097 -> OK
10:09:00.097 -> Server IP address=
10:09:00.097 -> 10.66.35.36
10:09:00.097 -> client is null
10:09:01.119 -> client is null
10:09:02.091 -> client is null
10:09:03.118 -> client is null
10:09:04.092 -> client is null
10:09:05.111 -> client is null
10:09:06.089 -> client is null
10:09:07.113 -> client is null

Does anyone have any idea what could be going on here?

sterretje · April 13, 2022, 2:49pm

@Kobones, your topic has been moved to the section dedicated to your board.

Dozie · April 14, 2022, 8:04am

Contact our technical support via https://www.arduino.cc/en/contact-us/ and give details of the issue and what you have done so far to resolve it.

Kobones · April 21, 2022, 12:39pm

After several emails with technical support, in which they claim Arduino sim cards are only for use in Arduino IOT Cloud applications (couldn't get that to work either), I gave up on the Arduino SIM.

Using hologram now and everything works great

Dozie · April 22, 2022, 8:18am

Some Arduino SIM cards are having problem connecting to the IoT cloud, let the tech support team know your SIM card ICCID number to help fix the issue for you.
Like they told you, the SIM is only for IoT cloud.

wheere · April 29, 2022, 3:05pm

I agree, the technical support is still trying to fix my Arduino SIM card issue with the Arduino IoT Cloud. So to not loose too much time I've purchased an Hologram SIM too, and it works fine with it !

intstarep · June 13, 2022, 8:00pm

Nothing is wrong until here. Post the whole AT console log.

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MKRGSM 1400 with Arduino SIM Not Working

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