TV Remote Jammer!
Intro: TV Remote Jammer!
I've had a few scuffles in my house over the TV remote so I decided to do something about it. I built a circuit that will block my TV and any device I choose from getting a signal from the normal remote control. I turn an ordinary remote into a jammer and the remote still works normally! Watch the video to see it work.
STEP 1: What You Need...
I chose to use a Sony remote control (SR-P30) because it has plenty of room inside to add my circuit and a 9 volt battery while keeping the remote fully functional.
The circuit parts:
1. Small circuit board
2. (1) 10k variable resistor
3. (1) 555 Timer
4. (4) resistors. 470ohm, 1k, 560ohm
5. (2) high speed switching diodes 1N4148
6. (1) transistor - BC557
7. (2) Infrared LED's
8. (2) 10nf capacitors
9. (1) 9 volt battery
Build the circuit based on the diagram below.
The circuit parts:
1. Small circuit board
2. (1) 10k variable resistor
3. (1) 555 Timer
4. (4) resistors. 470ohm, 1k, 560ohm
5. (2) high speed switching diodes 1N4148
6. (1) transistor - BC557
7. (2) Infrared LED's
8. (2) 10nf capacitors
9. (1) 9 volt battery
Build the circuit based on the diagram below.
STEP 2: Install the Circuit...
I hot glued the circuit inside the remote control. I also had to remove 2 posts to make room for the 9 volt battery. Tape down the LED's near the existing LED. I used the existing switch on the remote and wired my 9 volt battery to it.
STEP 3: Test It Out!
You may have to tinker with the 10k pot to get the frequency right for the device you are targeting. Adjust the pot while the remote is 'on' and test it with the original remote until the jammer confuses the device. Now, just pull out the remote whenever you need to take control of your device and no one will have any idea what's going on. You can bring this to a friends house and drive them nuts! Have fun, be safe!
STEP 4: How Does It Work?
This is a pretty simple concept. When you press a button on a remote crontrol for a TV, stereo or other IR device, it creates a series of pulses which the receiver in the target device; in this example, a TV, decodes into the corresponding function. This frequency is around 35-40kHz. To confuse the receiver, this jammer sends out a steady stream of binary code (1's an 0's) at the same frequency, but contains no information to decode. The receiver basically sits there and does not respond at all and the real information cannot get through to it as long as the jammer is on. Voila! You've 'jammed' your TV remote!
252 Comments
ewilhelm 16 years ago
thepaul93 15 years ago
vedant samadhiya 6 years ago
DanM37 8 years ago
Is it a LM 555 timer or a NE 555 ?
J-Five 8 years ago
I checked they are the same, but you should check just to be on the safe side.
DanM37 8 years ago
Ok,I will! Thanks!
J-Five 8 years ago
Here's one sight I found
http://www.electronica-pt.com/datasheets/ne/NE555.pdf
J-Five 8 years ago
They are the same, but you should check to be sure.
AdithyaA2 8 years ago
when he means "be safe" he means dont get arrested for using the device
AdithyaA2 8 years ago
whats the freguency of yours?
agishero 11 years ago
Plz answer soon kipkay.
AdithyaA2 8 years ago
because two LEDs are more powerful than one
shanertheman13 9 years ago
umar.malik.5855594 9 years ago
JayPeeeeeee 9 years ago
Never thought this would be so cool
Kipkay 16 years ago
aalejo 10 years ago
let bong pipes out and relax sir lol hahahaha
thetre 10 years ago
gdawg 16 years ago
Kipkay 16 years ago