1024-0 User Guide
Part 1: Setup
Part 2: Using Your Phidget
About
The PhidgetRFID reads data from RFID tags that transmit in the 125kHz range and use a supported protocol. When the tag is brought near the surface of the PhidgetRFID, if the antenna is enabled it will inductively power the tag, which will transmit its data.
If you have a writable tag, you can also use the PhidgetRFID to write custom data to the tag. The tag data must conform to the protocol's format. See the Advanced Topics section below for more details.
Explore Your Phidget Channels Using the Control Panel
You can use your Control Panel to explore your Phidget's channels.
1. Open your Control Panel, and you will find the following channels:
2. Double click on a channel to open an example program. Each channel belongs to the Voltage Ratio Input channel class:
In your Control Panel, double click on "Digital Output":
In your Control Panel, double click on "LED Driver":
In your Control Panel, double click on "Onboard LED":
In your Control Panel, double click on "RFID Reader/Writer":
Part 3: Create your Program
Part 4: Advanced Topics and Troubleshooting
Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.
1. Open the Control Panel and double-click on the red map pin icon:
2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.
See the Phidget22 API for your language to determine exact syntax for each property.
We support read-only tags that have been programmed with a supported protocol, as well as T5577 type tags for writing.
T5577
T5577 tags can be written with any of the supported protocols. Fresh T5577 tags that have never been programmed may show up as an EM4100 tag, or may not show up at all. After writing, they will always show up as the written tag. We also support a lock function which prevents a tag from ever being re-written.
A protocol is a way of encoding data on an RFID tag. This is not the same as the tag type. For example, we support the T5577 tag type, which can be programmed with any of the protocols which we support. We also support read-only tags which have been programmed in any of these protocols.
We support three reading and writing protocols with the 1024:
EM4100
EM4100 (also known as EM4102) is the protocol that all previous PhidgetRFID readers have supported. Therefore, if you want to use the 1024 to write to writable tags to be read with previous versions of the PhidgetRFID, you need to write them in this protocol first. This protocol encodes 40 bits of arbitrary data. Read-only tags that are factory programmed with this protocol are supposed to be unique.
Phidgets represents this protocol as a 10-digit hex string, include leading 0's (e.g. 0087f3bc91). This is the format to use for writing new tags, and to expect from the tag events.
ISO11785 FDX-B
ISO11785 defines tags used for animal IDs. If you have a pet cat or dog, chances are high that they have one of these tags implanted. FDX-B refers to the way that the ISO11785 data is encoded on the RFID tag, and is the industry-standard encoding scheme.
This tag consists of a 10-bit country code and a 38-bit unique ID.
The country code is ISO 3166. The '999' code is set aside for testing.
The unique ID is 38-bit unsigned, so that's a range of 0 - 274,877,906,943.
Phidgets represents this protocol as a 15-digit decimal number string - concatenated 3-digit country code and 12-digit id. For example, 999000000000123 would represent the testing country code and an id of 123. Please note that the 12-digit id part cannot exceed the 38-bit maximum integer value of 274,877,906,943.
Note that Animal tags with a valid country code are supposed to be unique. Of course, with the 1024 you can freely copy an existing Animal Tag.
PhidgetsTAG
The PhidgetsTAG protocol is an internal protocol only supported by the PhidgetRFID 1024.
This protocol allows storing an ASCII string, up to 24 characters (e.g. I am a Phidgets Tag!)
The ASCII data must be 7-bit, so no extended ASCII support, but standard text is all supported (as well as control codes).
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 1024 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.
|
Phidgets Inc |
| {{{1}}} | |
| FCC ID: {{{2}}} |
- This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- (1) This device may not cause harmful interference, and
- (2) This device must accept any interference received, including interference that may cause undesired operation.
- Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment.
- The user is cautioned that any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
- This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- • Reorient or relocate the receiving antenna.
- • Increase the separation between the equipment and receiver.
- • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- • Consult the dealer or an experienced radio/TV technician for help.
- This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used with the unit to ensure compliance.
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 at all.
For more information on RFID readers and tags, visit the RFID Primer.
