Posts Tagged ‘RFID antenna’

How to build your own RFID reader

Thursday, April 22nd, 2010


Do you have any idea on how easy it is to build your own RFID reader? Well, we stumbled upon some sites that’ll give you some clearer picture on how to make this thing happens. As pointed out by hackaday,

[Klulukasz] left a comment pointing to this DIY RFID reader that was a final project in 2006 for a class at Cornell University. It is well documented and includes not only a schematic and code, but an explanation of the design considerations used during the build. The project uses an ATmega32 and the parts list priced out at about $50 at the time. There were plenty of responses to theRFID spoofer post pointing out that there are readers available for $40, but we want the fun of building our own.

A bit more vague with the details but no less interesting is this other simple RFID reader design.

Courtesy: hackaday

iPhone RFID Reader

Tuesday, March 16th, 2010


The idea behind this project is to see what the iPhone’s serial is capable of and to try and have a little fun with RFID along the way. This reader works with the low frequency (125Khz) tags but I have a half working version for MiFARE Hi-Frequency as well.

For this project you will need:

  1. An iPhone USB Cable (genuine one is best and probably at least 3!)
  2. A JAILBROKEN iPhone!
  3. An ID-12 RFID Reader
  4. An ID-12 Breakout Board
  5. Logic Level Converter
  6. It’s useful to have some IC Sockets for Soldering
  7. Glass Tags if you want extra fun or any
    125Khz Tags
  8. If you don’t like the idea of taking iPhone Cables apart, use an iPhone Breakout Board
  9. A Battery Pack with a 5V step up
  10. Wire.
  11. Some kind of switch.
  12. A box to put it all in.
Wow, is it really enough to finish the job? All we need is some determinations and courages – well, i think so! Check out this video!

Courtesy: Section9

RFID tracking system

Wednesday, February 24th, 2010

This is a working tracking system using RFID tags built by Nicholas Skinner. The system’s tags operate in the 2.4 GHz band and are used to track either people or assets. The readers are on a mesh network and can triangulate the location of any tag for display on a map. His system is even set up to show the travel history of each tag. [Nicholas] shared every detail in his writeup including some background about available hardware options and how he made his final decisions on what devices to use for the job. His conglomeration of software that ties the whole project together is also available for download.

courtesy: ns-tech

RFID emulator

Wednesday, January 6th, 2010


[Alexander] built an RFID emulator. It uses a wire coil (not pictured here) and an ATmega8 to represent any tag that is EM4001 compliant. This iteration requires connection to a computer to send the tag ID information to the microcontroller. In the video after the break it looks like he’s using a DIY RFID reader to test this. If the two were combined, cutting out the need for a computer, he would have an RFID spoofer on his hands.

source: hackaday

Lazy man’s USB RFID reader

Sunday, August 2nd, 2009


[Don] had some Serial RFID readers that he needed to work and be powered by USB. He went out and purchased a simple serial to USB converter, but was left with the problem of the operating voltage. He supplies the schematics on his site for his solution. Basically he gutted the converter and integrated it all with the appropriate voltage broken out. The final project is nice, using the serial to USB convert as the project box and even including a nice LED to show when an RFID tag has been read.

source: Hack a Day

Scratch built RFID tags

Thursday, November 13th, 2008


[nmarquardt] has put up an interesting instructable that covers building RFID tags. Most of them are constructed using adhesive copper tape on cardstock. The first version just has a cap and a low power LED to prove that the antenna is receiving power. The next iteration uses tilt switches so the tag is only active in certain orientations. The conclusion shows several different variations: different antenna lengths, conductive paint, light activated and more.

Art of RFID Antennas

Sunday, June 29th, 2008

Check this beautiful line arts of RFID antenna design technologies:

Outer Space

µ-Chip Hibiki by Hitachi.

This is an astronaut’s mobile phone kit, right? Nope! It’s Hitachi’s early gen 2 µ-Chip Hibiki, pronounced mu-chip, also known as the “5-yen tag,” introduced in late 2006. Why 5-yen? If ordered in large quantities, each one costs only ¥5. A bargain! Now, why this Greek letter? It’s a variation of the µ-Chip which is only tiny 0,4 mm square. However, the Hibiki is 102 x 135 mm in size.

Alpine Serpentine

Japanese DNP’s Nile.

We bet that the lab behind the shape of the Nile RFID chip by DNP must have had something like a radiant heater in mind as inspiration. These serpents have a minimalist elegance. Don’t get lost in its beautiful wavy lines, this is still an ultra-high-frequency chip with 96 bit memories.

Gesturing Man

The ‘global tag’ by UPM Raflatac.

A 512 bit memory is hidden in this shiny metal, simply called ‘global tag’ by UPM Raflatac. Check the tiny filigree pattern! How about an RFID necklace with ultra-high frequency (UHF)?

Alien Sktechbook

This must be part of an alien spaceship! The Rafsec Memory Stick by UPM Raflatac.

A memory stick? Oh, not your USB stick, this one has only 512 bit. Note that ultra-high frequency (UHF) RFID systems are being widely deployed since several large corporations got that through, including international retailers and — not to forget — the U.S. Department of Defense.

Picture Frame for Geeks

Rafsec 49 x81 mm Tag by UPM Raflatac’s.

OK, the shape of this Rafsec Tag isn’t that peculiar, but hey, its high frequency (HF) is in use worldwide. A typical high frequency would be 13,56 MHz. HF systems are widely used in libraries, mass transportation (think SUICA and PASMO train cards) and product authentication applications. Capacity: 1024 bits! Depending on the usage, this HF tag either comes as non-adhesive inlay, die-cut web with adhesive, filmic face (for wet inlay,) or in a tag with a paper face. Stylish.

Weather Satellite

A satellite! The Avery Dennison AD-612.

This multi-frequency inlay code-named AD-612 by Avery Dennison has the usual 860-960 MHz frequency — and an utterly space age shape! We wonder which sci-fi scientist came up with this sketch-like design that resembles an orbitting satellite.

Next Season’s Jewellery

Golden plate by Texas Instruments, the Tag-it HF-I Transponder.

Blinded by this glimmering gold, we get that this one isn’t exactly brand new, but still a nice sight; the high frequency Tag-it HF-I Plus Transponder Inlay by Texas Instruments goes by the standard 13,56 MHz and has a 2 Kb memory to store your precious data. This wafer is inked, ground and sewn onto tape. Nice sewing job!


ALN-9540 – “Squiggle™” by Alien Technology.

A true tag for the world, at least so says manufacturer Alien Technology. This little squiggle is operating between 860 to 960 MHz, with a ‘generation 2′ performance. It was created for most types of packaging, including products containing metal and water. Metal bento, anyone? Watch out, it’s a mere 97 x 11 mm!

The Labyrinth

The ALN-9529 – “Squiggle®-SQ,” another one by Alien Technology.

Oh, a little squiggle! This fancy-looking UHF operates between 860 and 960 MHz. Said to be ideal for item level tagging of plastic packaging such as pill bottles and apparel tags. So this is already in use at your local department store. Also featuring near-field and far-field communication. So talkative!

Ancient Cave-painting

A very stylised crab! UPM Raflatac’s Rafsec Crab.

If this were an ancient cave-painting you’d be amazed by its geometric shape. Well, it’s a stylised crab called Rafsec Crab and only slightly newer — also from the high-performing UHF, ultra-high frequency, group by UPM Raflatac. By the way, the other chips of the the same series have some quite weird shapes named Frog, DogBone or Hammer. Welcome to this unusual family! And what a modest memory of 96/240 bits.

Source: PingMag