Project 7.3—Using the RFID
In this project, we shall be using an RFID receiver to read the unique identifier (UID) number stored on an RFID tag.
Before going into the details of the project, it is worthwhile to review the basic principles of the RFID.
Radiofrequency Identification
RFID involves the use of RF electromagnetic waves to transfer data without making any contact to the source of the data. Generally, an RFID system consists of two parts: A Reader and one or more transponders (also known as Tags) that carry the data. RFID systems evolved from barcode labels as a means of identifying an object. A comparison of RFID systems with barcodes reveals the following:
• Barcodes are read only. Most RFID systems are read write.
• Barcodes are based on ...
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