Using nRFgo Studio when producing 18000 units

[Hampus]

I need to do the following when assembling a device with nrf-52 at the factory.

• Add firmware onto device
• Add a unique serial number for the device
• Print a sticker and add on the outside of the device box with same serial number
• Test some basic bluetooth functionality

Would it be a good idea to nRFgo Studio for these tasks?

An alternative would be to make our own android application with a barcode scanner. A worker could then flash firmware onto the device -> scan sticker barcode with the android app -> connect to the device -> register serial number onto the device and test bluetooth functionality. But it sounds time consuming.

Any help on this would be very appreciated. How is this usually handled?

[Wojtek]

If you want to train your patience, it is good idea to use nRFgo Studio - it will take forever to click erase and flashing for all that units... For lower amount of chips, I would try some nrfjprog scripting, but for 18k units you need some better production programming solution.

Some info available here.

[Hampus]

Thanks, that helps! So what Im thinking now is the following

1. Use nrfjprog python wrapper that Nordic provides to write the firmware to NRF52 available here: github.com/.../pynrfjprog
2. Read serial number from file and flash it to the customer registers in the UICR with nrfjprog as well as seen here: devzone.nordicsemi.com/.../
3. Bluetooth functionality could be tested in the same script with: bitbucket.org/.../pygattlib
4. And finally after the device is tested a label could be printed with this: github.com/.../brother_ql

This could all happen in the same python script. Would this work well you think?