RFID (radio-frequency identification) systems are all around us. They help us get through toll booths faster. They help stores keep track of inventory. They are even in a lot of toys.

But there is no reason why the RFID chips need to stay in their original housing. In this project, I am going to show you how to transplant a RFID chip into a different housing to make it more convenient or at least more fun use. You can make an RFID reactive wallet, multi-tool, or cell phone case. The only limit is your imagination.

Step 1: Select a RFID Chip to Transplant

The first thing that you need to do is select a RFID chip that you would like to transplant into a different housing. As an example, I am going to be using the chip from a security key fob. This kind of chip is normally used to unlock doors in an office building.
<p>Thanks for the vid. Might have been a joke, but now I know what it looks like from the inside. The key ring portion broke off mine and I was worried what would happen if I took it apart. Now, I'll just purchase a new one from Amazon and swap the guts. My apartment building manager charges us 50 bucks for replacement fobs...crazy! Especially when I've seen them sold for 3 dollars a piece. Thanks!</p>
<p>good luck</p>
<p>at work we have these white cards (size of a credit card) to open doors. does anyone know if those cards have these ID inside? if so, how can I open them up? great project.</p>
<p>Actually... <a href="https://www.instructables.com/id/RFID-Bracelet/" rel="nofollow">this</a>. I didn't realize it at first because as MrHoudini pointed out, this is actually a proximity ID rather than an RFID. Hope this is still relevant!</p>
<p>Hey! I was just issued one of these for work and had the same idea. Acetone will dissolve the plastic while keeping the metal intact! I'm planning to get a flexible housing, like cloth, to make a wristband. There is a circular circuit that cannot be broken, so be very careful with it!</p>
Yes, they do have a similar card inside of them. But you probably don't want to try to open it up. These cards will have antennas that are made of very thin wire and they are glued in place. So if you open it up, you run the risk of accidentally breaking the wires just from the glue pulling on it. And the wires are so thin that they are very difficult to solder back together.
<p>While similar, you are actually transplanting a Proximity ID, not a RFID. </p><p>http://www.ehow.com/facts_7412912_difference-between-proximity-id-rfid_.html</p>
wow, i need to do that with my toll tag.
Is the pet implanted ID-Chip on the same frequency?? <br>So better to take your Cat or Hamster close to the sensor for dooropening..... :-)
LOLOLOL!!! Can't get that picture out of my head! :D
Not the same frequency, and the RFID only emits a number when activated. So your pets are safe.
Avoid scratching the fob: <br>&quot; I wrapped the key fob in a napkin to avoid scratching it.&quot; <br> <br>Then cut up the fob: <br>&quot;I decided that the safest way to remove the chip from its housing was to cut it out with a rotary tool. &quot; <br> <br>LOL <br> <br>Thanks, nice idea!
Yeah. In hindsight it sounds pretty pointless. But when I was first opening it up, I didn't know what I would have to do to extract the chip. So I was being overly cautious.
Love it! I have been toying around with the idea of implanting an RFID chip into my wrist to unlock my doors to my house. You know never ever being locked out again!
Put the chip in a sonic screwdriver :p
I saw the title and i thought you were going to implant them into humans. <br>I've installed a few into animals and its no fun.
Yeah, my job definitely would not allow me to modify my RFID holder. After all, its theirs not mine and I'd have to give it back if I I quit.
Many jobs only require a $5 (or similar) replacement fee for a &quot;lost&quot; RFID tag. Mine even allows for one &quot;free&quot; loss.
Be careful, my job changes the 'lost' cards into instant alarm sounding cards. They are talking about making it secure the outside and inner doors so the person using it can't escape without breaking a window...
My job disables lost tags.
Yeah, I guess I could just lie about losing it if I ever had to turn it in since my job doesn't charge either.
That's cool <br>
I love the magic wand idea! What a great thing to try before the grandkids come to visit us at the beach condo! Just wave the magic wand to open the gate to the pool. haha
LOOOOL. Great!
I like the idea of re-purposing the RFID chips &amp; esp like the idea of combining things like your did by applying it to your cell phone. It makes for one less thing yo have to carry or keep track of. It would be great if you could show more about how to use other types of these chips for something different than original purpose.
*<a href="https://www.instructables.com/id/RFID-Bracelet/" rel="nofollow">Ahem</a>*<br> <br> ;-)
That is another excellent application. Thanks for sharing.

About This Instructable




Bio: My name is Jason Poel Smith I am a Community Manager here at Instructables. In my free time, I am an Inventor, Maker, Hacker, Tinker ... More »
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