IR Jammer – Infrared Remote Control Jammer

Get your own IR Jammer Kit here on our store, or get it from the Maker Shed.

Look at the Kit page here.

The IR Jammer is a fun project that provides a bit of safe, non-destructive fun. The Infrared Remote Control Jammer allows you to render all IR remote controls inoperative! The microcontroller in this design allows for all 6 of the main IR frequencies to be targeted making this unit universal. It works by corrupting the data that is being sent by your normal remote controls.

A single press of the button sends out stream of IR pulses from the two narrow beam and two wide beam IR LEDs for 30 seconds. Each press of the button will add 30 seconds to the running timer. For remote operation you can simply connect a button to the On Sw. pads, shorting this input will turn on the IR output until the contact is opened. This would allow the device to be mounted into an old remote, brim of a hat, etc.

The compact design is the size of a 9 volt battery allowing it to be strapped directly to its power source if desired.

Overview

The heart of the IR Jammer is a PIC 12F675 microcontroller. This microcontroller has been programmed to reproduce the 6 popular IR frequencies, 30kHz, 33kHz, 36kHz, 38kHz, 40kHz and 56kHz. When the button is pressed two transistors are used to pump infrared data out of the 4 IR LEDs. Using two wide beam and two narrow beam IR LEDs allows good distance and a ease of use. The Green LED is used to indicate power up by blinking 3 times and also to indicate when the jammer is running by a quick flash ever few seconds. When building the kit you can select the power selection resistors to adjust the balance between range and power consumption.

Code

After the jammer flashes the green LED to indicate power on the unit goes to sleep and wakes up on a pin change interrupt, this allows it to last a very long time in standby. The PCB mounted push button will wake it up and allow it to operate for 30 seconds for each press and the On Sw. remote switch connection will run the jammer until the switch is turned off. There are 6 assembly language routines that are used for each of the IR jamming frequencies that the device replicates.

Schematic

Click on the image for a large version of the schematic.

Download Code

If you are interested in burning your own chip you can get the HEX file here. If you would like to have a look at the source code that is available as a free item in the online store.

22 Responses to ' IR Jammer – Infrared Remote Control Jammer '

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  1. on July 12th, 2010 at 8:09 am

    [...] the assembly line… We have a new kit that is being released today. It’s an universal IR Jammer which can be used to jam any infrared remote control [...]

  2. jason said,

    on July 12th, 2010 at 3:13 pm

    the schematic image is not linked to the larger version of its self ….


  3. on July 12th, 2010 at 5:00 pm

    [...] pouvez retrouver l’ensemble de ce projet sur alan-parekh.com et vous pouvez même trouver le kit complet pour la somme de 11.95$ sur alan-parekh.vstore.ca [...]

  4. Alan Parekh said,

    on July 12th, 2010 at 5:04 pm

    Thanks Jason,

    The schematic is now linked up.


  5. on July 12th, 2010 at 5:35 pm

    [...] control?  Do not worry as your revenge is finally here, you can build yourself one of these nifty DIY Infrared IR Jammers, which will pretty much make any TV remote control come to a screeching halt and your family [...]

  6. gary said,

    on July 13th, 2010 at 8:26 am

    For automated operation, install an IR receiver module such as Vishay TSOP1100 in place of or in parallel with pushbutton S1. This will trigger the jammer to begin transmitting whenever it senses an IR remote signal. You’ll want to add an on/off switch to conserve battery power, as the receiver module draws 1-2 ma.

  7. Alan Parekh said,

    on July 13th, 2010 at 8:43 am

    Hi Gary,

    That sounds like an interesting hack!

  8. Stan said,

    on July 14th, 2010 at 2:30 pm

    As an added feature you could implement a “passive mode” in which the jammer, using an ir receiver will immediately jam only when it sees a remote being used. It would have to be positioned properly, I don’t know if it would work, but if it does it could greatly extend battery life.

    Stan

  9. Alan Parekh said,

    on July 14th, 2010 at 3:43 pm

    Hi Gary and Stan,

    That is a good idea. I was thinking about a feature like that when it was being developed. The main reason I didn’t implement any type of detection means is because the IR from remotes is very narrow and would probably not be picked up by the unit unless it was being pointed at it.


  10. on July 17th, 2010 at 7:28 pm

    [...] prize this week is one of our new IR Jammer kits that was just released this week, this will let you jam the infrared receiver on any infrared [...]


  11. on July 27th, 2010 at 7:52 am

    [...] Jammer – Infrared Remote Control Jammer – [Link] Filed in Miscellaneous | 1 views No Comments [...]


  12. on August 25th, 2010 at 6:52 pm

    [...] photography location soon, I can’t wait to use some of these tips to see how I can make my pictures look better. I have been talking with our friend Daniel Garcia from Protostack who has always taken [...]


  13. on September 4th, 2010 at 4:14 am

    [...] is controlled by a small MCU that is included in preprogrammed form with the kit, so you don’t need to do it yourself. However, if you are building a jammer from scratch, [...]


  14. on September 6th, 2010 at 10:26 am

    [...] John mentions the IR Jammer (infrared jammer) would make a great companion to the TV-B-Gone, his evil plan is to turn off a TV, [...]


  15. on September 16th, 2010 at 1:55 pm

    [...] any web connected device such as an iPhone. I think I could through a wench into the demo with an IR Jammer [...]


  16. on September 26th, 2010 at 6:22 pm

    [...] John mentions the IR Jammer (infrared jammer) would make a great companion to the TV-B-Gone, his evil plan is to turn off a TV, [...]

  17. Marilyn said,

    on February 22nd, 2011 at 2:56 pm

    This is not a comment but a cry for help. My commputer was hijacked.. my tv was hijacked bu yhr people who has a homemade audio video transmitter and they control my tv and computer. Im not capable of building the jammer to stop them.. is there anything that can be bought ready made. I saw ones that works through the walls.. if you know where is this site.. or if u make them can u tell me how much this will sell for?
    Thanks

  18. robbie said,

    on June 18th, 2011 at 2:41 am

    ok i need something i can remotely control to turn a tv down in another room secretly anyone got a solution for this ?


  19. on November 7th, 2011 at 2:30 pm

    [...] trying to determine who wants what since I haven’t heard who is going to be awarded the three IR Jammer kits [...]

  20. akila said,

    on December 23rd, 2011 at 12:05 am

    is it possible to construct a wireless camera jammer like this circuit

  21. ARUN GEORGE said,

    on September 30th, 2012 at 4:31 am

    how to jam infrared camera

  22. kevin said,

    on October 15th, 2014 at 10:34 am

    I LIKED YOUR CIRCUITS.

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