NFC mass production testing

[Valentinas]

We are preparing a mass production test system for a new product, it has NFC as a slave unit. What is the easy way to test that NFC in this case? We think that it would be best to test the assembled product rather than bare PCB in a test box.

Hopefully i can get some suggestions here,

Thank you.

[Marjeris Romero]

Hi,

You could place an NFC reader close to the antenna, and just check if the NFC module returns the callback when it sense a field with a random payload. The event to look for is NFC_T2T_EVENT_FIELD_ON on the callback you send to nfc_t2t_setup.

It's better if you can test in the case, but if you have tested the tuning locally and are sure it goes through the casing you can production test without.

Best regards,

Marjeris