How to connect NB-IoT SARA-N211

SARA AFF
#1

HI,
I am testing sodaq sara n211 in Denmark and I have TDC and Telia SIM but I am unable to connect it to the network. I tried to run all the AT command to connect it but after giving AT+CGATT command I am getting it 0, it means it connected to the network. Can any one please help me out? How can i connect it to the network.?

#2

Hi @Radheshyam_Singh,

Can you try with AT+COPS=0, to use the auto operator selection.
I have seen that it some countries the force operator doesn’t work.

Best regards,
Jan

#3

Dear Jan,
Thanks for your reply. But still it is not connecting. I am using the following code ----

#include <Arduino.h>

#if defined(ARDUINO_SODAQ_SARA)
/* SODAQ SARA */
#define DEBUG_STREAM SerialUSB
#define MODEM_STREAM Serial1
#define powerPin SARA_ENABLE
#define enablePin SARA_TX_ENABLE

#else
#error “Please select the SODAQ SARA as your board”
#endif

unsigned long baud = 9600;

void setup()
{
#ifdef powerPin
// Turn the nb-iot module on
pinMode(powerPin, OUTPUT);
digitalWrite(powerPin, HIGH);
#endif

#ifdef enablePin
// Set state to active
pinMode(enablePin, OUTPUT);
digitalWrite(enablePin, HIGH);
#endif // enablePin

// Start communication
DEBUG_STREAM.begin(baud);
MODEM_STREAM.begin(baud);
}

// Forward every message to the other serial
void loop()
{
while (DEBUG_STREAM.available())
{
MODEM_STREAM.write(DEBUG_STREAM.read());
}

while (MODEM_STREAM.available())
{
DEBUG_STREAM.write(MODEM_STREAM.read());
}
}

I am in Denmark and I am using the Telia and TDC SIM to connect it. I tried all the AT command related to SARA n211 to connect it to network, but I failed all the time. Can you please guide me step by step how can I connect it. Is this code is correct or there is any change?
Please reply me asap.
Thanks

#4

@Radheshyam_Singh

On this page you can find the sketch and AT commands we use in the Netherlands.
http://support.sodaq.com/Boards/Sara_AFF/Examples/passthrough/

You might need to change some commands

  • Update the APN to Telia APN
  • When the force operator doesn’t work, use the auto operator selection (AT+COPS=0)
  • Use band 8 or 20

It can take a few minutes before the AT+CGATT return 1

Best regards,
Jan

#5

Hi

Did you get it to work with Telia SIM in Denmark?