I am working on an RFID/NFC system where the functionality goes as follow:
- PN532 will read and register Android Phone using NFC
- FID Reader ID-20LA will read RFID tags
After the phone is registered in Arduino using PN532, i want Arduino to be able to update the list in Android app with the tag information every time ID-20LA reads a tag.
What is the best approach for this project?