Products for USB Sensing and Control

Products for USB Sensing and Control

PhidgetRFID

ID: 1023_0
Read EM4100 series RFID tags at a distance of up to 6cm with this reader.

Discontinued

Replaced by the 1023 - PhidgetRFID.

PhidgetRFID reads RFID tags that are brought in close proximity, within 3 inches.

Includes USB cable but not tags. We recommend that you purchase the PhidgetRFID Kit (Item#2002), as it comes with an assortment of tags, at a slight discount.

Documents

Code Samples

APILanguageOS
RFID C Multiple Download
RFID C# Windows Download
RFID Java Multiple Download
RFID JavaScript Any Download
RFID Objective-C macOS Download
RFID Python Multiple Download
RFID Visual Basic .NET Windows Download
DigitalOutput C Multiple Download
DigitalOutput C# Windows Download
DigitalOutput Java Multiple Download
DigitalOutput JavaScript Any Download
DigitalOutput Objective-C macOS Download
DigitalOutput Python Multiple Download
DigitalOutput Visual Basic .NET Windows Download

Software Objects

Device Object Name Channel
RFID Reader RFID 0
5V Digital Output DigitalOutput 0
LED Output DigitalOutput 1
On-board LED DigitalOutput 2

Product History

Date Board Revision Device Version Comment
June 2002 0103Product Release
April 2004 0200Onboard LED, 2 Digital Outputs added. Ability to enable/disable Antenna added.
January 2005 0201RF Circuitry upgraded to improve reliability
January 2006 0202Onboard microprocessor upgraded to Flash version.
September 20060203Changed enable functionality to re-initialize reader
June 2006 0204Low Voltage Reset set at 4.7 Volts
April 2007 0205Protocol parsing bug fixed which garbled top 3 bits of RFID Tag.
July 2007 1206Unused internal I/O pulled high out of an abundance of caution, bus current characterized. Terminal block moved to edge of PCB, center of antenna routed out, digital output transients on startup eliminated.
June 2013 Product Discontinued. Succeeded by the 1024 - PhidgetRFID Read/Write. The 1024 differs from the 1023 in its ability to write to tags with the T5577 chipset, and to read tags belonging to a number of additional protocols.

Getting Started

Welcome to the 1023 user guide! In order to get started, make sure you have the following hardware on hand:


Next, you will need to connect the pieces:

1023 1 Connecting The Hardware.jpg
  1. Connect the PhidgetRFID board to the computer using a USB cable.


Now that you have everything together, let's start using the 1023!

Using the 1023

Phidget Control Panel

In order to demonstrate the functionality of the 1023, the Phidget Control Panel running on a Windows machine will be used.


The Phidget Control Panel is available for use on both macOS and Windows machines. If you would like to follow along, first take a look at the getting started guide for your operating system:


Linux users can follow the getting started with Linux guide and continue reading here for more information about the 1023.

First Look

After plugging the 1023 into your computer and opening the Phidget Control Panel, you will see something like this:

1023 Panel.jpg


The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.


The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

RFID

Double-click on the RFID object labelled RFID Reader in order to run the example:

RFID Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Bring a compatible tag close to the 1023 and the tag's string and protocol will be displayed.
  • Toggle power to the antenna using the checkbox labelled Antenna Enabled. Toggling antenna power decreases power consumption, however, the 1023 will no longer be able to read tags.
  • Enabling the Keyboard Output Enabled checkbox will cause your computer to write a string of text whenever a tag is discovered. Park your cursor in an empty text file and try it out!


Digital Output

Double-click on one of the Digital Output objects available in order to run the example. They are labelled Digital Output, LED Driver, and Onboard LED.

1023DigitalOutput OnOff Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Toggle the state of the digital output by pressing the button.


Technical Details

Controlled Outputs

Make sure to attach a diode across the terminals of the relay if you are using output 0 on the RFID board to drive it.

The PhidgetRFID has four outputs - two of which are available to the user. Output 0 is a 5VDC source from the USB bus through a P-Channel MOSFET with less than one ohm impedance. This can be used to switch a TTL or CMOS device, or it can be used to drive a 5VDC relay such as the Aromat JS1-5V. Output 1 is an LED drive output at 5VDC with maximum 15mA of available current (250 ohm CMOS output). Both Output 0 and 1 are available in hardware at the terminal blocks on the PhidgetRFID board. If Output 0 is used to drive a relay, a fast clamping diode must be placed across the relay drive pins as shown in the diagram on the right. Not doing so can result in permanent damage to the PhidgetRFID board.

Output Function Connection
0 +5VDC Source Terminal Block
1 External LED Drive Terminal Block
LED Internal LED Drive Internal Only
RF Enable RF Antenna Enable Internal Only


Interfering Signals

If you are using multiple RFID readers, placing them too close together will cause interference when reading tags. You can work around this problem by rapidly "polling" each 1023 by turning the antenna on, checking for tags, and then turning it off in sequence. Of course, this will lengthen the amount of time it takes for your system to read a tag, since you may have to wait for the nearest reader to become active.

Object Speed

When trying to read tags, you should allow the tag to remain within detection range for at least 50ms. Tags moving through the detection area faster than this may not register.

Further Reading

For more information on RFID readers and tags, visit the RFID Primer.

What to do Next

  • Software Overview - Find your preferred programming language here to learn how to write your own code with Phidgets!
  • General Phidget Programming - Read this general guide to the various aspects of programming with Phidgets. Learn how to log data into a spreadsheet, use Phidgets over the network, and much more.
  • Phidget22 API - The API is a universal library of all functions and definitions for programming with Phidgets. Just select your language and device and it'll give you a complete list of all properties, methods, events, and enumerations that are at your disposal.

Software Objects

Channel NameAPIChannel
RFID Reader RFID 0
Digital Output DigitalOutput 0
LED Driver DigitalOutput 1
Onboard LED DigitalOutput 2

API


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