nrf9160 serial number

[Kai]

Hi,

Does every nrf9160 chip have its unique chip ID? if yes, is it the one which can be read by the AT command AT+CGSN? and can it be used as the board serial number?

Is it necessary for the customers to define their own serial number, rather than using the chip ID? if yes, how do they store it in the non-volatile memory?

Best,

Kai

[Martin Lesund]

Hi Kai,

You can use the command +CGSN to request the product serial number identification.

With the command AT+CGSN you can read out the "International Mobile (station) Equipment Identity" (IMEI).

Which is a unique code consisting of 14 digits and a check digit for identifying 3GPP-based mobile devices.

The IMEI number is composed of Type Allocation Code (TAC) (8 digits), Serial Number (SNR) (6 digits), and Check Digit (CD) (1 digit).

Every nrf9160 SIP has this unique ID from the factory. 

Best Regards,

Martin L.

[Kai]

Hi Martin,

The sample asset_tracker uses "IMEI", to be more accurate, "nrf_IMEI" as the client ID to connect to AWS Nordic account.

We've made asset_tracker work with our own account in AWS. However we have to use the AWS created client ID rather than "nrf_IMEI" as the client ID, otherwise it will fail. Do you know how Nordic makes it work?

Best,

Kai