RFID (Radio Frequency Identification) is a technology that uses electromagnetic fields to identify objects in a contactless way; it is also called proximity identification. There are 2 elements in RFID communications: the RFID module (or reader/writer device) and an RFID card (or tag). The RFID module acts as the master and the card acts as the slave; this means the module queries the card and sends instructions to it. In a normal RFID communication, the RFID module is fixed and the user takes his card near it when he needs to start the interaction.

Chip: PN532 by NXP.
Compatibility: Reader/Writer mode supporting ISO 14443A / MIFARE /
FeliCaTM / NFCIP-1
Distance: 5cm
Max capacity: 4KB
Tags: cards, keyrings, stickers

Applications:
Located based services (LBS)
Logistics (assets tracking, supply chain)
Access management
Electronic prepaid metering (vending machines, public transport)
Smartphone interaction (NFCIP-1 protocol)

Documentation:
Waspmote Quick Tutorial
Waspmote Site
Waspmote Technical Guides
Sensor Boards Technical Guides
Networking Guides
Developers Forum
Videos
Articles
50 Applications with Waspmote
FAQ: Waspmote Vs. Arduino

Download the Fritzing library to include in your electronic designs here