Near Field Communications (NFC) is a contactless communication technology based upon the ISO 14443 standard. Being standards-based, NFC devices can easily interoperate with other contactless protocols including the highly popular Radio Frequency Identification (RFID) protocol. RFID tags are often used for building access and asset inventory. In this chapter, I will show you how to interface an NFC/RFID reader with the RasPi. The reader will detect the nearby presence of a tag device and then light an LED.

The reader will be controlled by a software package named libnfc and a Python program running on the RasPi. Be forewarned: a fairly involved development process is required to install the libnfc software. ...

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