Designed in cooperation with Grand Idea Studio, the Parallax Radio Frequency Identification (RFID) Reader Module is the first low-cost solution to read passive RFID transponder tags. The RFID Reader Module can be used in a wide variety of hobbyist and commercial applications, including access control, automatic identification, robotics, navigation, inventory tracking, payment systems, and car immobilization.
Features:
- Fully-integrated, low-cost method of reading passive RFID transponder tags
- 2400 baud TTL serial interface (output only) to PC, BASIC Stamp module and other processors
- Requires single +5VDC supply
- Bi-color LED for visual indication of activity
- 0.100. pin spacing for easy prototyping and integration
There are a variety of transponder tags that come in different packages. Each tag has a specific range that is within 10% of the given distance for each type of tag. The reason for the 10% is due to environmental conditions and RFID modules. Parallax carries two types of tags:
Note: No tags are included with the RFID Reader Module. This device can be connected to a PC serial port using a MAX232 line driver. The circuit isn't supported by Parallax, but it's possible to make this connection with a few dollars of parts.
Downloads:
RFID Reader Software on Forums
RFID and Text-to-Speech Modules Video Podcast
RFID Reader Documentation v2.1 (.pdf)
BASIC Stamp 2 Source Code (.BS2)
RFID Basic (.BS2)
BASIC Stamp 1 Source Code (.BS1)
SX/B RFID Card Reader Code (.SXB)
RFID Security (.SXB)
RFID Door Lock Video
N&V column "You Can't Touch That" #120 (.pdf)
Nuts & Volts Column RFID