PIC16F877A – Interfacing EM-18 Compatible μRFID

The PIC 16F877A Mini Development Board provides on board support for interfacing μRFID reader. Radio-frequency identification (RFID) technology enables remote and automated gathering and sending of information between RFID tags or transponders and readers using a wireless link.Using RFID the exchange of data between tags and readers is rapid, automatic and does not require direct contact or line of sight. The RFID module can be interfaced with the board using the same serial reception program used for testing the UART. When a Card (tag) is brought near the RFID reader, it tries to communicate with the tag, receives the data and decodes it. Finally it send the data over the Tx line. The UART module in MCU receives the data and thus used for further applications.

SchematicSample Code

The sample code to interface μRFID reader is given below. On reading an RFID card, its ID is displayed on LCD.

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  10. PIC 16F877A Mini Development Board – Interfacing μRFID Reader

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