Step 6: Connect the BlueSmirf to the ID12 reader and 3 1.5V AA batteries

Connect the BlueSmirf to the ID12 reader as follows:

  • VCC to 5V (11)
  • GND to GND (1)
  • RX-I to D0 (9)

Then connect the ID12 to the batteries:

  • 5V (11) to + (Plus)
  • GND (1) to - (Minus)

If you use solder to create a durable connection it might be better to unplug the jumper cable before soldering. Also, the jumper cable's plastic cover melts really quick so take care not to heat it too long.

Once you got the connections ready, attach 3 1.5V AA batteries (equals 4.5V) and make shure the BlueSmirf starts to flash its red LED.

Note: While the BlueSmirf is marked as 3.3V it does work pretty well with 4.5V. The ID12 which is laid out for 5V also functions with 4.5V (maybe with a slightly lower range).

Put everything into the box and try to close it tightly without squeezing any cables. For the following test (next step) you might want to open the box again to be sure the BlueSmirf LED works as supposed.
<p>Great article still I wanted to know can we use any other bluetooth module instead of bluesmirf gold bluetooth module</p>
Sure, you can use any other Bluetooth module that provides the Serial Protocol. Cheers, Thomas
<p> <br> <br>This wasasdasdasd really an <br> interesting topic and I kinda agree with what you have mentioned here!</p><p><a href="http://www.monacopropertylistings.com" rel="nofollow">immobili in affitto a monaco</a></p>
<p>hello, </p><p><a href="http://rfish.net/download/SerialUsbBlueSmirfConfig.zip" rel="nofollow">SerialUsbBlueSmirfConfig.zip </a></p><p></p><p>and</p><p></p><p><a href="http://rfish.net/download/Serial.zip" rel="nofollow">Serial.zip</a></p><p>are not working. any help?</p><p></p>
Hi, what exactly did you try and what's error message?
<p>rfish.net website seems to be down..</p>This domain name has been registered with Gandi.net<p>It is currently being parked by the owner</p>
<p>Thanks. Will have a look.</p>
<p>okay great, hope you can get the downloads working again.</p>
<p>the links are still not working. :(</p>
<p>Sorry for the long wait. Should be fixed now. Cheers, Thomas</p>
Thanks for letting me know. Got to fix my domain / hosting. Will take some days, sorry.
<p>hi Tamberg,</p><p>i would like to read the rfid tag and send the tag id via bluetooth to an android phone. this tutorial does not teach how to connect it to phone.also how to configure the rfid reader and bluetooth module.</p>
<p>Hi, the Bluetooth module in this project just forwards whatever the RFID reader module sends to it. Simply connect to the Bluetooth module using the Bluetooth serial profile (SPP). The standard Android Bluetooth library should do the job. Cheers, Thomas</p>
<p>hi,</p><p>I should connect the RFID ID12 <br> and the BLUESMIRF gold Bluetooth module to the ID12 breakout board ad <br>shown in the tutorial. For configuration part i need to connect the <br>bluetooth module to the android phone using bluetooth serial profile and <br> the configuration would be done.</p>
<p>Yes. There's not much to configure with SPP, as far as I remember.</p>
<p>HI,</p><p>I have to actually read RFID tag number of every student who boards the bus which has a RFID reader and send their parents message about the child boarding the bus.i am planning to send the tag number to the phone.</p><p>is there a cheaper RFID and bluetooth module i could use.</p><p>and can you please give the detail about SPP since i have no idea about it.</p>
<p>Sounds like a great project. In the meantime there are some cheaper RFID readers and way cheaper Bluetooth modules. If price is critical, check something like Ali-Express.</p>
<p>can i configure and connect other rfid and bluetooth module in the similar way</p>
<p>Yes. All serial modules work more or less the same.</p>
<p>can u provide me with more detailed information on bluetooth serial profile or any source from where i can understand it.</p>
<p>Just remembered they also call it RFCOMM. See https://en.wikipedia.org/wiki/List_of_Bluetooth_protocols#RFCOMM and for Android https://developer.android.com/reference/android/bluetooth/BluetoothSocket.html</p>
<p>Oops, here's a shortened version of the Android link: http://goo.gl/Wlq1yI</p>
<p>I loved this article and its step by step tutorial about making water proof RFID tag. I would like to make this &lt;a href=&quot;http://trakaid.com/wp-content/uploads/2014/01/tk2013-03-dc-on-metal-rfid-asset-tag.pdf&quot;&gt;TRAKAID On-Metal RFID Asset Tag&lt;/a&gt;.. </p>
<p>great little tutorial, curious if you ever tried this with a 125khz ACTIVE rfid tag?</p><p>Curious what kind of increased rage it would have....if you know, I'd appreciate the info</p>
<p>Hi Skeet103, never had access to an active 125khz tag. Nice idea, though. Cheers, tamberg</p>
Oh I have a number of ID20 and ID12 chips floating about my office each with pins 7 and 1 connected (setting to ASCII). The Bluesmirf is set to 9600 Baud. <br> <br>Thanks, F.
All I know about the ID12 is what's written here. Maybe your BlueSmirf has some settings that cause the problem, as it was probably not in the default state. Try to go through the setup steps of this Instructable, maybe with another baud rate. And check the baud rate in your code, too.
Hey there I know its been a while since you made this project but quick question. When I connect to a PC and scan a card im getting &quot;☺☻&hearts;&clubs;4F&quot; random characters as its trying to show ASCII of data thats just not there. Now I checked the .cs file and I couldnt see that you were changing the bits into any form of data, just writeln them. <br> <br>- The chip is set to ASCII mode. <br>- The reason I ask is I have coded something for android which does output characters but not the unique card ID normally just 002000000 or the like so im trying to find if its my code thats not correct or if its something to do with my circuit. (Had some problems way back when I connected the chip via a wire to the phone with power and it not sending the data correctly). <br> <br> <br>Thanks, F.
Hi, which chip are you referring to? Maybe the baud rate is not set correctly?
Hi, I know this is an old pot but just wondering if you can remember roughly how much this cost, and the distance that it would work at asI know most RDIF systems are quite short in terms of reading distance.
Hi, the parts are all linked on the first page. There are cheaper Bluetooth modules on Ebay, around 10$ if I remember correctly. The reading distance is very short (you have to touch the reader) which indeed is quite a disadvantage for most applications. Regards, <br>Thomas
Greeting, Just FYI, I tried to download your SerialUSBbluesmirf.zip and it turned out like this <br /> <br />403 Forbidden <br /> <br />Code: AccessDenied <br />Message: Access Denied <br />RequestId: 4AB03E36B05CC9D4 <br />HostId: NrN3vGkopox3PnzYj8nNCefc2JJsDFAStAOS1hnyi2StP+4hlPj19AvQdTs0yzSf <br />
Fixed! Thank you very much. Regards, tamberg
Hello, i would like to buy 1 premade. <br>Can you do this? <br>How much cost and ship to Florida, USA. <br> <br>Thank you
Hi, thanks for the request! I sent you a private message.
Hi,<br>Is it possible to do the same thing with a wifi module instead of Bluetooth?<br>Thanks.
LIMAMIN, that could work. There should be Wifi modules supporting serial communication (UART). However the setup would probably be different and the system might require more power. Also, I'm not sure if there's any interference between RFID and Wifi, but probably not. Cheers, tamberg
The download link for Serial.zip is broken <br>... http://rfish.net/download/Serial.zip<br>it says &quot;Forbidden&quot; (error code 403)<br>
Fixed, thanks.
Did you write the software yourself?
Hi jeffjeffwong,<br><br>yes, I did. That said, there's very little software included here. For a real application you'd probably need some extra code.<br><br>Cheers,<br>tamberg
I would like to know if this RFID reader has been tested on and whether it is known to work with a Mac?<br>Cheers,<br>Stephen in Montr&eacute;al
Hi sghantous, the reader communicates via Bluetooth and should work with a Mac, but I never actually tested it. The .NET test program probably needs Mono and some additional tweaking to run on a Mac. Cheers, tamberg
I made your project with the ID 20 indtead of the soecified ID 12 (hoping to get additional range). <br>Everything seems to be made correctly, yet it doesnt read the tags. <br>Would the ID 20 be the problem?? <br> <br>Regards out of N Zld
Hi joll, <br><br>the main difference between ID-12 and ID-20 (according to http://www.sparkfun.com/datasheets/Sensors/ID-12-Datasheet.pdf) seems to be the power requirement. The ID-12 requires 5 VDC @ *30*mA, the ID-20 requires 5 VDC @ *65*mA nominal. While the ID-12 works fine with only 4.5 VDC, this might be too low for the ID-20. If you got a 5V power source you could probably use it instead of the 3 AA batteries. But still, the pin layout is the same on both readers, so I do not really understand either, why the reader doesn't work at all. Can you check the wiring again and make sure you use a EM 4001 or compatible RFID (125kHz)? <br><br>Cheers, tamberg
I work with several groups that talk about ID Theft and since I am on the top of technology I want to show and help people understand the dangers.<br><br>Some of the questions I have need to be moved to a less public forum can you email me at chris@o-t-s.ws.<br><br>Thank you
Hi, if you're at the top of RFID technology, you probably know a lot more about the related security issues than I do. If your questions concern this project, feel free to pose them here, so other makers can profit, too. Cheers, tamberg
The problem is the lack of security at every level of RFID that is in use. Credit Cards and Passports and lots of other options.<br><br>A laptop, an antenna, and some software to log the data, a brief case. All that is needed is a place to walk around and pick pocket people. An Airport is a good place to start.<br><br>This all can be done for a few hundred unless you already own a laptop the price drops, most things can be built or bought off ebay cheap the software can be found free and anyone can get a suit case or similar bag cheap.<br><br>I would like to know where you picked up your parts and how much. That is the main part of what I want to display to victims is how little it costs and how easy it is to get the designs to do this.
hello again ,<br /> i am asking if you simulated this .. i mean is there any software&nbsp; simulation to simulate this if there is no way to execute it in real .. ?<br /> <br /> thanks alot <br />
Hi RanaD, simulate what?&nbsp;Could you explain in more detail what you are trying to do? Cheers, tamberg<br />

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