RFID Read/Write Module, Serial

Designed in cooperation with Grand Idea Studio (www.grandideastudio.com), the Parallax Radio Frequency Identification (RFID) Read/Write Module provides a low-cost solution to read and write passive RFID transponder tags up to 3 inches away. The RFID transponder tags provide a unique serial number and can store up to 116 bytes of user data, which can be password protected to allow only authorized access.

The RFID Read/Write Module can be used in a wide variety of hobbyist and commercial applications, including access control, user identification, robotics navigation, inventory tracking, payment systems, car immobilization, and manufacturing automation.

Features:

• Low-cost method for reading and writing passive, 125 kHz RFID transponder tags
• Up to 116 bytes of user data storage on a single tag
• Optional security features prevent tag from being read or written without password
• Bi-color LED for visual indication of status

Read/Write Compatible With:

• RFID R/W 54mm x 85mm Rectangle Tag
• RFID R/W 20mm Round Tag
• RFID R/W 30mm Round Tag
• RFID R/W 50mm Round Tag

Read Compatible With:

• RFID 54mm x 85mm Rectangle Tag
• RFID 50mm Round Tag
• RFID Disk Tag 25mm
• RFID Blue Eye Key Fob Tag

Key Specifications:

• Power requirements: +5 VDC; < 10 mA idle, approx. 100-200 mA active
• Communication: asynchronous serial 9600 bps, (8N1); 5 V TTL-level, non-inverted
• Dimensions: 3.25 x 2.45 in (8.26 x 6.2 cm)

Downloads & Resources:
RFID Read Write Doc (.pdf)
RFID Read Write Source Code (.zip)