2025-07-03 11:31 PM - last edited on 2025-07-07 12:45 AM by Brian TIDAL
Hello everyone,
I'm exploring the possibility of using NFC technology to operate and read data from a sensor equipped with an I2C ADC (Analog-Digital Converter). Specifically, I'm interested in leveraging an antenna cable or a smartphone as part of my main system setup.
Here's the scenario I have in mind:
I want to utilize NFC functionality to communicate with the sensor.
The sensor incorporates an I2C ADC for digital data output.
Ideally, I would like to use either an antenna cable or a smartphone to facilitate this NFC communication.
System Diagram:
[Main System] - [Antenna Cable/Smartphone (AAT)] - [NFC Reader] - [I2C] - [ADC]
My questions are:
Has anyone here successfully implemented a similar setup using NFC to communicate with an I2C ADC-equipped sensor?
What specific NFC reader ICs or modules would you recommend for this application?
Are there any particular challenges or considerations I should be aware of, especially regarding antenna cables or smartphone integration?
Any insights, experiences, or advice would be greatly appreciated!
Solved! Go to Solution.
2025-07-07 12:43 AM
Hi,
I recommend using an ST25DV dynamic tag on the sensor side instead of a reader. This allows the sensor data to be transferred through the ST25DV mailbox. A smartphone can then access the mailbox via NFC.
Refer to the STEVAL-SMARTAG2 evaluation board at STEVAL-SMARTAG2 for an example of such an architecture.
Regards
BT
2025-07-07 12:43 AM
Hi,
I recommend using an ST25DV dynamic tag on the sensor side instead of a reader. This allows the sensor data to be transferred through the ST25DV mailbox. A smartphone can then access the mailbox via NFC.
Refer to the STEVAL-SMARTAG2 evaluation board at STEVAL-SMARTAG2 for an example of such an architecture.
Regards
BT