This app is used to show an industrial use case for NFC on a demo setup (DIN Rail demo) by NXP: Diagnosis of the device.
The app reads out counter values from the demo unit via NFC. This app works with the unit switched off (zero-power), as the iPhone powers the unit via the RF field during the read process.
For more information, please visit www.nxp.com/nfc.
Get your technical NFC questions answered: https://community.nxp.com/community/nfc