For starters, you need a pre-wired NFC RFID module as the key hardware. NFC and RFID projects have become a huge trend, but many modules are pricey for electronics hobbyists and need a complex setup.
An Arduino sketch for robustly reading the balance and transaction history from a Dhaka MRT RapidPass card using a PN532 NFC module. FMR2 is an unofficial, Opensource Arduino/ESP32 project designed ...
This is a fork of the library for the Adafruit PN532 NFC/RFID breakout boards. It adds some support for communication with NTAG424 tags. Currently this works only for ESP32, due to the use of mbedtls.
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