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:
- 54x85mm Rectangle Tag (#28141) ISO Card: 6.3cm (2.5") +/- 10%
- 50mm Round Tag (#28142) World Tag 50mm: 6.8cm (2.7") +/- 10%
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.
