How To Take Multiple RFID Readings Simultaneously a learn.sparkfun.com tutorial

Available online at: http://sfe.io/t3441

Contents

Introduction

In this tutorial, we'll show you how to set up the SparkFun Simultaneous RFID Reader to take multiple, if not nearly unlimited, RFID readings simultaneously by connecting either the M7E Hecto or M6E Nano directly to your computer using a USB-C connection and running Universal Reader Assistant (URA) software, which provides a simple and effective interface for configuring and managing your RFID reader. This is really useful for applications like measuring attendance at events, as well livestock management etc.

SparkFun Simultaneous RFID Reader - M7E Hecto

WRL-24738
$299.95

Required Hardware

To complete this project, you will need the following components:

For this simple setup, you do not need a microcontroller. However, in many (maybe most) practical applications, it would make sense to connect the RFID Reader to a microcontroller and add an antenna so you could take readings remotely without your computer in front of you and extend the range (which goes up to 3 or 4 feet in this example). Users who prefer to communicate with the RFID reader using the Serial PTH header should solder either wires or header pins to connect them to a 3.3V microcontroller, such as our RedBoard Artemis. Check out our Hookup Guide for instructions on how to do this.

Setting Up Your Simultaneous RFID Reader

To connect the RFID reader directly to your computer via USB-C. Follow these steps:

How to Download and Install Universal Reader Assistant (URA)

With the hardware set up, you can now move on to using the Universal Reader Assistant to interact with your RFID reader.

The Universal Reader Assistant (URA) software is a powerful tool designed to help you make full use of the capabilities of your SparkFun Simultaneous RFID Reader. Unfortunately, as mentioned, the URA is only available for Windows.

Download URA

Setting Up the URA

Using the Software

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URA Features and Tips

Exploring URA Features

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The main window of the Universal Reader Assistant offers a wide range of settings and status options for the M6E Nano or M7E Hecto RFID readers. Here are some key features you can explore.

Read/Write Options: Adjust the RFID reader's power level, read/write settings, and other operational parameters.

Practical Tech Tips - most settings can be adjusted on the right drop down menu.

Thermal Management: The RFID reader has an internal temperature sensor to prevent damage from overheating. If you encounter a temperature-limit fault, reduce the read power or improve cooling.

Power Level: Start with a moderate power level (e.g., 500 dBm) to prevent the USB port from browning out. You can increase the power as needed but be mindful of thermal limits.

Tag Read Efficiency: Experiment with different settings in the URA to optimize the RFID reader's performance for your specific application.

Final Thoughts

By following this tutorial, you’ve (hopefully) successfully set up your SparkFun Simultaneous RFID Reader to take multiple RFID readings directly through a USB connection using your computer. The Universal Reader Assistant software allows you to explore the full potential of your RFID reader, making it a powerful tool for various RFID applications. Happy hacking!


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