1023 User Guide

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Getting Started

Checking the Contents

You should have received: A PhidgetRFID A USB Cable		In order to test your new Phidget you will also need: A compatible RFID tag

Connecting the Pieces

Connect the PhidgetRFID board to the computer using the USB cable.

Testing Using Windows 2000 / XP / Vista / 7

Make sure you have the current version of the Phidget library installed on your PC. If you don't, follow these steps:

1. Go to the Quick Downloads section on the Windows page
2. Download and run the Phidget21 Installer (32-bit, or 64-bit, depending on your system)
3. You should see the icon on the right hand corner of the Task Bar.

Running Phidgets Sample Program

Double clicking on the icon loads the Phidget Control Panel; we will use this program to ensure that your new Phidget works properly.

The source code for the PhidgetRFID-Full sample program can be found in the quick downloads section on the C# Language Page. If you'd like to see examples in other languages, you can visit our Languages page.

Updating Device Firmware

If an entry in this list is red, it means the firmware for that device is out of date. Double click on the entry to be given the option of updating the firmware. If you choose not to update the firmware, you can still run the example for that device after refusing.

Double Click on the icon to activate the Phidget Control Panel and make sure that Phidget RFID is properly attached to your PC.
Double Click on Phidget RFID in the Phidget Control Panel to bring up RFID-full and check that the box labelled Attached contains the word True. Click on the Antenna Enabled box to enable the antenna. Click on the LED Enabled box to turn the LED on or off. The Output 0 box controls the +5V digital output and the Output 1 box controls the external LED digital output. Bring an RFID tag close to the PhidgetRFID board and check that the identification string is displayed. Make sure that the Antenna is enabled for this step. When the Keyboard Output is Enabled, the identification string will also be displayed at the cursor point in an application running in active window on the PC (such as a word document, for example).

Testing Using Mac OS X

1. Go to the Quick Downloads section on the Mac OS X page
2. Download and run the Phidget OS X Installer
3. Click on System Preferences >> Phidgets (under Other) to activate the Preference Pane
4. Make sure that the Phidget RFID is properly attached.
5. Double Click on Phidget RFID in the Phidget Preference Pane to bring up the RFID-full Sample program. This program will function in a similar way as the Windows version.

Using Linux

For a step-by-step guide on getting Phidgets running on Linux, check the Linux page.

Technical Details

Controlled Outputs

Make sure to attach a relay 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, and two of which are for internal control of the Phidget board only. Output 0 is a +5V 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.

1023 Outputs

Output	Function	Connection
3019_0	Molex 50-57-940	50
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 could 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.

Further Reading

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