We provide the PlanetX RFID, two labels, and a card. The PlanetX RFID can write or read data in tags and cards without contact. Use it to make an unmanaged parking lot!

Specifications
Connections: RJ11 4P4C
Power: IIC
Connections Type: Serial Port
Core IC: PN5321A3
You can find the introduction of this product following this link
https://wiki.elecfreaks.com/en/microbit/sensor/planet-x-sensors/Plant_X_EF05047