Parallax 28140 RFID Reader with 2 Transponder Tags

Description

Overview:
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.
There are a variety of RF 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.
See our RFID Module & Tag Compatibility Chart here
.
Key Features:
Low-cost method for reading passive RFID EM4100 family transponder tags
2400 baud serial interface
Enable input allows module to be enabled/disabled by software
Bi-color LED for visual indication of status
Application Ideas:
Robotics
Payment Systems
Automatic Identification
Note:
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 or by using the
USB version
of the reader. There is an outline of connections on the forums.
Details:
Reads 125 kHz Tags, EM4100 Family
Power requirements: 4.5 to 5.5 VDC
Communication: Serial at 2400 baud (8N1)
Dimensions: 2.45 x 6.25 x 0.22 in (62.2 x 82.5 x 5.57 mm)
Operating temp range: -40 to +185 °F (-40 to +85 °C)
Compatible tags:
54x85mm Rectangle Tag
ISO Card: 6.3cm (2.5″) +/- 10%
50mm Round Tag World Tag
50mm: 6.8cm (2.7″) +/- 10%
Blue Eye Key Fob
25mm Disk Tag
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