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RFID Card Reader - Serial

  • 28140: RFID Card Reader Serial
$49.99
Product ID: 28140
In Stock: 145
1-9$49.99
10-19$47.49
20+$44.99
Downloads

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:

Downloads & Documentation

Product Specific Downloads
Download Details More Info
Propeller C Learn Folder - 10.07 MB | updated: 02 Mar 2020 - 5:24 pm
RFID Serial Propeller Spin Code - 10.39 KB | updated: 03 Oct 2014 - 2:41 pm
RFID Arduino Example Code - 1.87 KB | updated: 06 May 2014 - 4:43 pm
RFID Card Security SXB Code - 2.5 KB | updated: 02 Oct 2013 - 4:48 pm
RFID Card Reader SXB Code - 2.51 KB | updated: 02 Oct 2013 - 4:47 pm
RFID Card Reader Documentation - 285.26 KB | updated: 24 May 2016 - 8:17 am
Open Communication - RFID (Nuts & Volts Article) - 2.68 MB | updated: 28 Sep 2012 - 1:33 pm
RFID BS2 Example Code - 2.88 KB | updated: 04 Jun 2014 - 4:28 pm
RFID BS1 Source Code - 944 bytes | updated: 19 Sep 2013 - 11:43 am

Additional Resources