Spying with a Laser
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- Опубликовано: 19 июн 2024
- Want to spy on people with a laser? Dating back to the 1940s, this oldie but goody is super simple to pull off! We can easily send audio over a laser and into a basic light-sensitive receiver.
The method itself was developed by Léon Theremin in the 1940's and originally used a simple IR beam invisible to the naked eye. Of course, we have made this much simpler at a slight cost of audio quality.
The possibilities are endless for this simple device, you could bounce the laser off a window and hear what is going on inside, you can hook an mp3 player into the power circuit and stream your music out as well.
All the items shown here are easily obtained at an electronic's store such as Radio Shack or Frys and won't cost much more than a few bucks if you get a cheap laser.
Check out www.hostgator.com and enter the code "SCITUESREV3" to get 25% off your order .
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Serious Business Inquiries Only: Contact us at: / householdhackertv (email address at the bottom) 
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Approved by the NSA
Jett Aniceto #national stalking society
American Idiot association works too
Splinter Cell approved too :)
And pentagon, Hollywood script writer. 🤣
Only for the nsa
What about a giant super laser point it to the moon to hear the aliens.
+Clan Sapngad That would be pretty expensive. And there are no aliens on the moon ._.
+Clan Sapngad Interesting concept but remember the laser has to bounce back to hit the receiver =P 4:54
Jacob Owns The moon can reflect light or just send a reflector to the moon.
+Clan Sapngad if my meory is correct there is reflecting devices on the moon, for calibrating purposes with those huge telescopes etc
Aliens on the moon? No Aliens are on the moon. That's ridiculous! Everyone knows the moon is made of cheese.
time to be a secret agent again....
that conversation was creepy
Yeah
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@zybeel If you feel overwhelmed by the instructions, just watch it a couple times. It is a very basic circuit here and the receiver itself is just two wires on a input jack. The best way to learn is trial and error.
something tells me his neighbors watched this video
ikr
a penis a penis penis penis penis penis
@@sillypotatoes5859 my thoughts exactly
🤣🤣🤣
@@sillypotatoes5859 well said
I used a higher quality solar panel/laser pointer, it works BEAUTIFULLY! I love your videos!
So thats how dubstep started :D
"have you ever wanted to spy on your neighbors with just a beam of light?" O>O....O
another way with a light first off you need another person a torch and a and then after that you'll need a glass basically get the other person to go with the glass up to the window and then point of the direction of the conversation with the torch and then but then press the brass against the window you've got another one just waiting for eventually are you can get a f*ck off
Yes?
@@sillypotatoes5859 that's a definite possibility of and absolute maybe
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THAT TABLECLOTH THO! It hurts my eyes
If I made the first circuit with a USB cable instead of the batteries, and an LED light instead of the laser, would the light flash slightly to music played through the audio jack?
Also, what is a MONO audio jack? Does it have to be mono?
For the laser audio transmitter you need a transformer in line with the laser pointer and the audio will sound much clearer. Use a low power solar cell if you're using a high gain amp. I used one from an old solar garden light and it was almost overpowering my amp.
@bilyisbored92 This is a very old (by my standards) trick. But it was too awesome to not let everyone know about. There are a multitude of ways to do it as well. There is another similar method by Simon Quellen that he posted up on scitoys some years ago. A bit more involved but it will produce a better quality output.
"Honey, the geek across the street is spying on us again!" -His neighbors
That's a really good way to get audio for a horror movie
this is the best diy project I've ever seen! Man, you're the cherry on the cake!
its funny, when you were transmitting clear audio from your phone from 3 feet away directly into your solar cell, you couldn't make any of it out, but miraculously you were able to "Bounce" light off of neighbors window, receive it in your solar cell and get clear audio, how wonderful. Oh by the way, where is your audio amplifier, is it that big thing because you need audio amplifier connected to your solar cell to amplify the vibration before it can be converted back into sound. I take it that you're not an engineering student
utubefrog09 also the fact that the neighbours window was probably double glazed dosent help either
Students are good at regurgitating taught facts. Don't get memory mixed up with intelligence
First time didn't work because the laser needs to be reflected on a surface that is vibrating because of sound waves. The vibration gets reflected with the laser and the receiver is then able to convert it back to audio. That's why pointing the laser directly into the receiver is not going to retrieve any sound.
You shouldn't make assumptions, accuse someone of faking a video and even making fun of him for not being an engineering student when you don't even know the principles that makes this work.
Get your facts straight if you are going to make such a disrespectful comment.
Im not saying he didnt fake it, but the laser did have a greater exposure over the entire panal after it was reflected. His Iphone test was just one small stream. The reflection covered the entire panal. Idk 😆
I'm pretty sure he faked it too, just dubbed a distorted voice over a track of static noise. Double pane windows only tend to transmit sound at the resonant frequency of the window. And if his receiver didn't pick up anything from the modulated laser there's no way It could have not a good signal from his neighbors.
It sounds like you're trying to summon Satan xDDD
I think 90% of his subscribers are secret agents!!!! LOL!!!!
ya the ladies coming over, you got to leave
LEAVE THE CONDOM
i was wondering if you power up the electret microphone and laser device (transmitter). so electret microphone picks up sounds surrounding and send it to receiver.
You know, many of your hacks ma be useful to secret agents
probably already have things 10x better then that things that you may not want to know about
They actually already use "laser" microphones to listen to something inside a room by pointing the beam on a window, but I think it was not a visible beam and they probably don't use a solar panel as receiver but more likely a light sensor diode or something
They actually already use "laser" microphones to listen to something inside a room by pointing the beam on a window, but I think it was not a visible beam and they probably don't use a solar panel as receiver but more likely a light sensor diode or something
Yup, laser mics have been around and available to the public since at least the late 1980s - early 1990s.
i have 10 of these outside my windows spying on Microsoft and seeing their next plan (i wish XD)
School project in 1967 was to send music over a laser beam from about a mile away. Back then it was a gas laser, of course.
very good tutorial! thanks for making this!
Lesbian neighbors + Good quality = YES
Just get a spycam then, I guess?
Max I'm not breaking into someones and placing spy cam lol
Maxjoker98 where is the fun in that, this is cheaper and makes you feel like a ninja spy
i don't get the thing with the laser on the window and your solar panel.. where do you point the laser at, and how do the signals come in (in what form..)
Glass windows reflect back a small portion of the light that hits them. The idea is you point the laser in such a way that it bounces back at your solar panel. The window itself will react to the sound waves in the room. The vibrations will cause th returned laser beam to distort into patterns that can be translated into sound.
Joseph Sileo thank you very much for the explanation
Thanks man, Now I understand the opening scene from Spectre.
You should make an all day live stream with that in a window... Of course it'll only work at night though...
I was expecting a laser camera.
i want to make a reciever thats a IR laser and transmitter hooked up to a recording device lol
I watched a couple of your videos and i was just like subscribe now!
Wow, this works better than I expected, now all you've got to do is filter out the noise.
I used a photovoltaic diode instead of a solar panel
So you shine the laser on their window, get it to reflect off and onto your panel? Not sure how this works, can someone explain? I know the science of it just not the set up.
The windows vibrate when the person talks, and the beam is reflected differently when the window vibrates. Because of this, the solar panel transmits more or less electricity to the speaker depending on how the window vibrates. I know this is a crude explanation, but that's all I can offer in a short RUclips comment.
Billy Williams That actually helped me out a lot, as I was having the same problem understanding. So cool, though. Thanks, Billy!
Billy Williams So, What you are telling basically is the sound waves travel along with laser. Right?
Correct me if I am wrong.
Sri Teja Chilakapati I think it's the way the soundwaves are picked up by the laser because the vibrations caused by the window cause the beam to "wobble/shake" to the soundwaves, this pattern is then picked up by the solar panel.
Oh. I understood. Thank you MrTuts4life
You found the location of a dial up modem. Nice!
What if you use all three colors (red, blue, green) at the same time giving the audio a chance to be expressed from 445nm-635nm? My hypothesis is this would give a better quality.
R.I.P headphone users :DD
Trust no one using headphones without music playing. They're demonic peeping toms, watching and studying us trying to imitate us children of God Almighty
Or for the same price as your laser pointer and gear you can buy a mini spy microphone which is much clearer.
stop ruining the fun bro.
Omar Coston but your range isn't as free
DS4ndwich ' can be tweaked and tinkered with like this getup.
malik terrell ya fun stuff
photovoltaic optical scratching is epic
Where to get the solar panel? as well as the one from the emergency phone video, I cant seem to find small ones anywhere!
subscribed.. just for research purposes
cool,now if you replaced the green laser with a infra red laser then no one will know they were being spyed on
but how do you know how to reflect it? yeah true do maths bu you would need a distance i presume and you would have to make *that* and put it in the circuit
so that *doesnt* *work*
you could use a infra red sensitive camera to reflect the beam to the right place and you can buy an infra red pointer easily of the web if you know where to look so you would just have to do the same what was done to that green laser in the vid so not too much circuit modification,apart from obviously the receiver which you may have to build but that is shown in the vid.
the infra red light also will reflect like normal light it behaves very much like visible light just that its a tiny bit too far on the red side of the light spectrum so our eyes cant see it only just.As long as it is not too far in the infra red spectrum you should be fine
SO COOL
this is just one of the reasons why I have subscribed to this guy.
I really enjoyed this video.
Wouldn't this work better with a blue laser; since their is deeper uv rays. For example I noticed that the blue laser shot at a solar panel gives it much more power, and basically means that the signal with the blue laser would be more clear and powerful?!!
That's why I commented!!!:) ;) :D
RANDOM VIDS
true it should work better that way
I knew that
So a red laser is the least affective because of its long wavelength?
Billy Williams That seems opposite to what I've learned. I suppose the only real way to test this would be to experiment! A blue laser would have a higher frequency, yes, and thus more energy, but the smaller wavelength would probably cause it to scatter more so it couldn't travel as far. But either way, I think it'd be cool to either use UV or IR radiation so you wouldn't have to worry about someone seeing you shining a laser through their window!
On another note though, I wonder if your regular everyday solar panel would detect these frequencies of light. If so, UV would probably be better as objects give off blackbody IR background radiation at room temps, creating lots of interference. Love this stuff.
I love lasers
your making me like science love these videos!!!!!!!!!keep up the great work man
Happy 200 video!
Does this really work?
"yes" it does but using a solar cell would be about the least efficient receiver you could think of. It's reacting to changes in wave length a solar cell is made to catch a very wide range of wave lengths across it's whole surface. A better receiver would be a would be a light sensing diode or "Photodiode".
kenstr321
Wanna bet? How about a pumpkin pie?
Mithradates Megas Do you mean a raspberry pie? The DYI electronics kit?
No. You said that Solar Panels are worse receivers than anything I could imagine - I have issued a challenge to that statement!
OMG WHATS WITH THE FUCKING IDIOTS SPELLING Raspberry Pi WRONG!?!?!?!??! i mean i get why ppl type it pie but still no!
I wonder if that guy knows he was being spyed on
Nope. He doesn't see the laser.
Well he will if he watched the vid XD
Thanks. Now I have discovered what my friend plays from my own bedroom. Awesome.
I've gotten everything together, but seem to be having just a little trouble when I aim the laser back and forth over the solar pad. I D K for sure yet, but it's as if I have to let it rest a second on the panel for the sound to record. I'm using a solar panel from one of those little "sidewalk torch's" So my question is this: Does "sensitivity" of the panel make a difference? And/or does the output of the panel, (Ie charging strength) make a difference? Thank you
Do you think infrared would work?
i researched, no it would'nt have enough energy to work :(, maybe a less noticable color like red would do
I wonder if a more powerful lazor would sound better
maybe, there are solar cells in development to capture not just visible light but also UV for a cloudy day, those might
Ricky32908 I'm curious about why you said IR wouldn't work.
IR has a longer wave length meaning it's more likely to reflect than UV against a barrier and looking up IR reflection in clear glass specifically, that looks like it's the case too.
Also it's not like we don't use IR to transmit data at higher bitrates than sound every day anyway (normally called a TV remote or toy car remote).
The only issue is the sensor, the solar panel. IR receivers are tuned to only receive a specific band of IR from a tiny LED back when LED's weren't superbright. Meaning no need to turn the lights out either.
I can actually see this being done with only a bit of optics to collaminate an IR LED and an off the shelf IR receiver.
Even if glass does transmit or absorb IR, replacing the LED with a superbright IR led would probably be enough for the sensor to detect the signal.
No prototype UV specfical PV cells or UV laser required.
Now granted this IR system may not work outside on a sunny day, but neither will the UV system (ozone does absorb UV but why would they even be researching UV specific PV cells if no significany UV reached the ground? Also sunburn....)
professional laser microphones use IR lasers in the 790nm freq so yeah...
How powerful is the laser?
the carpet you were working on hurt my eyes
HOLY SHIT HOST GATOR IS AMAZING!
Hoisehold is there an item that can b e purchased to stop /interefere with covert listening devices within walls?
Congratz bro, thats pretty sic. I'm too cheap to go out and buy the parts
It says "Oh hey there Sarah, What's going on?"
Or "Oh hey uhh Sarah what's going on?"
Which Mw amount would you recommend on the laser for best audio quality?
That is really badass
That spying laser is so cool :D
Awesome!
I have a science fair in a week. I dont know where to get the Audio Jack. I have searched everywhere for the one he has in the video. I still cant find it! Please help me.
this is really cool
you might wanna open your screen on your window metal might be the reason why your sound being bounced its coming in rough, also you might wanna add some cap's & resistors to the circuitry to smooth out that feedback
How would exposing the diode affect this? If you unscrewed the tip you could get the WHOLE solar panel
5:01 Best dubstep I've ever heard :D
This is amazing 👀
What is the background track called for this tutorial video?
My neighbour saw the tripod in front of his window and the glowing solar panel ? Think I will stick with my 1cm bug. lol
could you use the small solar panel from a cheap calculator ?
I wonder if maybe you found a better light detector if it would work better?
Radioshack laser pointer.. Those things are explensive
a schematic would come in handy dude.. thumbs up
yo i wanna see the inside of this dudes house. he must have homemade EVERYTHING! XD
@MasterSamus What do you mean relay? internal parts imo would never make sense to use laser instead of wires and for anything else it wouldnt make sense because you have to point the thing...they tried it with infrared if im correct i remember on an old nokia cell i had you could use either Bluetooth or infrared to transfer data are you thinking of something similar?
Would it work better with a fiber optic cable (or just a clear plastic wire)?
wow these are the type of videos that youtube was founded on. So nostalgic
How many volts and mA is your solar panel? I found a 3V solar panel with 10mA and one with 200mA which one should i buy?
My tech education teacher talked into a microphone, hooked it a laser-type thing, had a receiver on the other side of the classroom, and it played what he was saying when you didn't block the light with your hand!
i've actually never thought about spying with a beam of light
Amazing!
amazing. that is so cool!
Where do you get these cool ideas?
That's pretty badass.
This is nuts....I wonder what effect you'd get with an infra-red laser...invisible. higher spectrum. Would be interesting to see.
i was wondering since its a lazer can it be reflected off of a mirror for better listening
can you use a solar panel off of a calcualtor, and would a blue laser light work better than the red
i am trying to transmit and receive audio
oka at the receiver the solar panel should have range of what volt & current
to absorb the light
How do you set the laser up to record? I didn't see how that worked. Are you bugging someone in your own home, or doing remote surveillance? A layout diagram might help. Cool idea, tho.
C.
Harmonic distortion at it's best!
Pretty cool
could u use a led light instead of a laser and hook up your music to it and make lights go with your music? just a thought
Would it not be better to point the panel at the sides of where the laser comes out of so you do not have to use separate systems to make this work. Similar to a parabolic?
Still don't know how it works, but its awesome !!
this is similar to how radio works. Sound messages are shot outwards from the broadcasting tower through light, then the Ariel in your radio picks up the light and transmits the sound carried on it (:
Wow so awesome
This would be soooo awesome with infrared laser beams !
Good video!
Those wires by the way are known as alligator clamps.