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Make your own LED Stroboscope (for a safety system)

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In this project I will show you how the stroboscopic effect works and how we can use it to determine the RPM of a motor. Also I will be showing you how to create a simple LED stroboscope at home by utilizing an Arduino or a 555 Timer circuit. Let's get started!
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Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod
(incompetech.com)

Опубликовано:

13 окт 2018

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Комментарии : 524

@pesterenan 5 лет назад

Scott, I believe the strobo effect would greatly diminish the robber efforts if the blinking was RANDOM! Imagine it, after some time, even with the lights blinking, your brain can adapt to the timing, but if it was a little random, with more off time, the brain can't adapt to it, and the guy would start to feel dizzy and fall everywhere.

@thoughtyness 5 лет назад

Yes! He should also rig up an AK-47 to warn the intruder of the all mighty blinking blue light.

@ms2649 5 лет назад

And add a high pitch sound (out of a fire alarm )

@ramous5182 5 лет назад

I think the FBI uses random strobing flashlights to stop people

@rainbowometer6266 5 лет назад

and make intruders hullicinate

@pekkasaarinen2902 5 лет назад

Maybe not completely random, but offsetting the blinks randomly some tens or hundreds of milliseconds.

@proyectosledar 5 лет назад

There are a lot of nice projects using strobo and water.

@jdrone77 5 лет назад

Podrias animarte y hacer una time fountain.

@4L0N50ALONSO 5 лет назад

@@jdrone77 siiiiii

@johnrubensaragi4125 5 лет назад

Just watch electroboom

@blanana_m 2 года назад

A Night club sometimes uses both

@gonun69 5 лет назад

A friend built something similar, but with red, green and blue 100W LEDs that blink randomly. Trust me, you don't want to look anywhere near it when it turns on! Objects with different colors are sometimes visible and sometimes not, so it looks like the entire room is constantly transforming. Even if you expect it, you get disoriented within seconds.

@rabbitpiet7182 5 лет назад

Gonun I want this yesterday

@paappraiser 5 лет назад

This sounds like a amazing idea. Any idea of the random frequency range?

@Blobadoodle 4 года назад

Was it a uC or a series of chips?

@andreafavero4250 Год назад

Incredibly based

@mousamupadhyaya8053 5 лет назад

Temporary nightclub (thief starts dancing) 00:32 😂😂😂😂

@delectantix2830 5 лет назад

Fortnite Players calls this: Boogie Bomb

@Asu01 5 лет назад

Why bother to make this strobe light when you already have a faulty cheap Chinese LED floodlight?

@dudeboi7773 5 лет назад

Good idea

@BuzZ. 5 лет назад

@GunwantBhambra 5 лет назад

leds itseft in vid is chinese cause i have a 50w rgb one

@manishholla 5 лет назад

Labs sexy idea bro

@MCsCreations 5 лет назад

🤔

@michael5432 4 года назад

Just a note; Strobing lights do not cause epilepsy. Strobing lights can cause seizures. Sometimes the SEIZURES are caused by epilepsy. :-) Love the video! Thanks for the tips.

@HebaruSan 5 лет назад

Burglar in GreatScott's garage: "Why do all these spinning disks look like they're standing still??"

@jeffspaulding9834 5 лет назад

Maybe the second half of the security system involves circular saw blades.

@tejav1160 5 лет назад

Frame rate

@chrishowardmv 5 лет назад

I still would have gone with the microcontroller so that you could pseudo-randomly adjust the pulse frequency and duration to further confuse an intruder. This is what most defense strobe flashlights do. After a few seconds of flashing, your brain can adjust somewhat. However, when the strobing changes on my flashlight it really messes you up. PSA: Don't stare at a bright as hell LED flashlight that is strobing while holding a beverage. BRB, doing laundry.

@Asu01 5 лет назад

Have you done with the laundry?

@alanstanley2847 5 лет назад

I don’t know, has he?

@Mr.Unacceptable 5 лет назад

You can get a cheap strobe light from the dollar store. It's more like a flash bulb. It's blinds the intruder upon the first flash and every flash after put those big blind spots you see when someone takes a picture. After 5 seconds you can't see anything. This is more like a strobe from a nightclub. You want a flash stun response not a party theme. Then you trigger the alarm at 15 -30 seconds and now the thief is blind and deaf. Time the CCTV correctly and you have their picture. They wouldn't let me hook up the device that took out knee caps.

@noobbot7392 5 лет назад

just imagining if electroboom had to make this😂😂he would have short circuited it first

@userPrehistoricman 5 лет назад

he would have soldered live wires right onto the LED

@noobbot7392 5 лет назад

@@userPrehistoricman 😂😂😂

@andruloni 5 лет назад

Fit a whole wall with the LEDs and fire them one by one at at least double the rated voltage :P

@maxxiang8746 4 года назад

@Utkarsh Amitabh Srivastava He already has xD

@suriyasuri2018 5 лет назад

Waiting for the diy 1500 watt boost converter...!!!

@Chriva 5 лет назад

What is it with you guys and dc to 110/220 death traps? No! Buy a ready-made one or don't mess with it at all.

@gustavgames 5 лет назад

@@Chriva a boost converter does not have to boost to 110+ volt

@AntonBabiy 5 лет назад

@@gustavgames +-90v boost for diy sub amp would be perfect 👌

@abuxxx3607 5 лет назад

Christian Ivarsson hahaha....still there?

@SuperBrainAK 5 лет назад

I am slowly working on converting one of those into a SEPIC arrangement, so it can boost and buck but not with all 30A (i will need to split the coil into two)

@denismckenzie1991 5 лет назад

Love that you are touching on this. I use to go to raves and would spin glowsticks on strings, I noticed when the club would utilize their strobe lights, I could match the frequency and make it look like the glowsticks we're floating straight up. 😎

@doormattde 5 лет назад

Try putting multiple LEDs in an arrangement and controlling them with an Arduino, Then try randomly changing the frequency to mess with pattern recognition and switching between the LEDs to create slightly different shadows, I think that might caused sea sickness

@vaioskaliakoudas6388 5 лет назад

The stroboscopic effect is also known by the stroboscopic timing light used by the car mechanics in order to get the correct timing in older cars suited up with distributors rather than DIS (Direct Ignition System) or COP (Coil On Plug) ignition systems, which the 2nd one is widely used by the car manufacturers nowadays

@celeronceleron5595 11 месяцев назад

Back in 2006 I created a solid state strobe light with a 1W Luxian Star LED. The first of two 555s adjusted the timing. The second adjusted the on time. I employed some high capacity caps so I could dump a ton of current into the LED. I used a constant current circuit to limit the current to 10A. It was dimmish in the dark, but the effect at max speed was nothing I had ever seen before. Instead of a stop motion effect as with the old tuber strobes I was getting an extrusion effect. You move your hand from a starting point and your hand stretches from there to the stopping point. The extrusion then shrinks from the starting point to the stopping point as per persistence of vision. Set the flash rate to extrusion and the moment they turn their head, well.... But I've never actually tried it. I was waiting for LED technology to catch up to provide a much brighter effect. I would use white light as that will provide a more eye filling effect. I would also suggest a remote switch and a chair for testing purposes. Just in case.

@ethanb3453 5 лет назад

I had a seizure but I learned alot, thanks!

@matthew3p 5 лет назад

I must say for someone that is German you have great English, sound like you’re a native English speaker. I am quite young at age 9 and am interested in electronics and learning German at school

@walidebdelli1046 5 лет назад

Good videos and tutos GreatScott... I'm far away from electronics because I'm geology engineer, but when start to see your videos I become addicted by electronics and haking... I start already with basics and programming.... Thank you Scott from Tunisia... Love German people...

@lucatosatti7071 5 лет назад

Next step: adding house music and a lot of alcoholic drinks, for complete disorientation. And you can use it for party in the weekend! Very versatile allarm system! I'm jocking, very good job!

@redakaminekloc5167 4 года назад

My sister really loved it! She can't stop dancing and even I didn't turn on the music yet!

@Predator49821 5 лет назад

Congratulations Greatscott! Almost 1 million subscribers! I'm just fore-congratulating you because you are currently my favourite RU-vidr! Wish you the best in the upcoming moments and I will continually stay to watch your fascinating projects.

@R3MIXMODZ 5 лет назад

I just had homecoming and my school had one of these lights and EVERYONE went crazy of how cool it was!! now Im gonna try to build it for my own use! It's a coincidence!

@tin2001 5 лет назад

LOL... Real strobes (with xenon tubes) were around decades ago. We used to use one in the late 90's for school and church events... And the unit we used was about 10-15 years old back then. Pretty sure they became a staple part of clubs and discos in the late 70's.

@traktion9 5 лет назад

@@tin2001 ya that guy doesn't get out much, strobes for dance effect were more common back then. Its funny to hear someone describe it like it just came out.

@nigeljohnson9820 5 лет назад

Can I suggest that you use a quad Schmitt trigger as the frequency generator and pulse shaper. Use two of the gates as a triggerable monostable and the forth as the buffer to the power MosFet. In my case I actually coupled the MOSFET drive to provide extra protection for the LED. Using HC parts it is easy to achieve the 30us pulse width. The output frequency can be as high as 10kHz. I have used this simple arrangement to examine spinning computer fans and my PCB drill. In the latter case, looking for eccentricities in its drill bit rotation. There is an advantage in having some control of the pulse width, as at low frequency a very narrow pulse does not provide much illumination. Thinking about it, while the ideal is a delta pulse, at low speeds, a wider pulse is on for a relatively small angle of rotation and the smearing effect may not be significant, while the increased illumination may be advantageous. The trick seems to be to keep the width as small as possible consistent with providing sufficient illumination and not exceeding the power dissipation of the LED(s) used.

@8867348 5 лет назад

Now even though i have very limited knowledge about this stuff, this is a project i feel i can do. Glad you went with the 555 timer cause i know nothing about the ardwino and/or programming it. I enjoy your channel very much.

@vcrahul 4 года назад

ASSEMBLED THIS. WORKING LIKE A CHARM.......GREAT SCOTT

@DooMMasteR 5 лет назад

Pulsing around 15-21 Hz seems to be most effective... Also varying the pulse width seems to help the effect... Alternating red/blue is the pinnacle

@adithyapillai4259 5 лет назад

Lesson Learnt. Never break into Great Scott's Garage!!

@greatscottlab 5 лет назад

Correct

@luongmaihunggia 5 лет назад

A few ways to make this more effective: Use RGB LED and have it randomly change between colours so the human eyes can't adapt. Have it randomly change between flashing frequency so the human eyes can't adapt.

@kanadnemade 5 лет назад

Warning: People suffering from epilepsey, don't even think of becoming a thief.

@nikims_ 3 года назад

wasnt planning to, but if i ever do become one, im never stealing from greatscott

@asdfqwerasdfqwer3058 5 лет назад

Im glad you chose the 100 Watt LED, I would have been disappointed otherwise.

@bennyboi0115 5 лет назад

Cheers for the videos dude, been watching your videos for a long time now and still they’re original and epic

@greatscottlab 5 лет назад

Thanks mate ;-)

@bennyboi0115 5 лет назад

GreatScott! Anytime honestly, I’m following my career in electronics and soon be going to an apprenticeship to learn new skills. My inspiration you.

@34Gw 5 лет назад

good at party light :)

@bgarv7 5 лет назад

'Temporary Night Club'

@mac2484 5 лет назад

I made a very similar thing for my house around 1.5 years ago, where i used a very powerfull amplifier (around 100w), 4 Bass shakers, and 2 of these Strobe Leds, and also a small variable frequency generator to scare the shit off people when they open my house without using the staircase type bypass switch.

@apurvsharma1261 5 лет назад

1 million is close!!

@tyttuut 5 лет назад

Damn it, now I have epilepsy! :P

@martinsindans1341 4 года назад

You didn't get the joke

@sparkyprojects 5 лет назад

You can connect the mosfet directly to the 555, just use a series resistor on the gate, something around 470 ohms, no need for a mosfet driver. And power the 555 with about 5-6v

@maxxiang8746 5 лет назад

the 555 would heat up probably

@francoisp3625 5 лет назад

I tried jlcpcb services twice already (for my fablab & myself ) & I confirm they are serious & cheap with very good quality boards :)

@KnightsWithoutATable 5 лет назад

You can also make a strobe light using an RC oscillator and a transistor. You can adjust the strobe rate by using a pot as part of the resistive portion of the circuit and the transistor is used to switch the high power to power the light. There are also capacitor based circuits that can strobe low power LEDs, but would not work for this application.

@Helectronics 5 лет назад

Cool video! I think you should also add a speaker playing techno music, so the intruder will dance until the police arrives.

@thebigflob8202 5 лет назад

I LOVE YOU CHANNEL SCOTT YOU ARE THE BEST! You should try building an ac motor from ground up, i think that would be interesting!!!

@greatscottlab 5 лет назад

I can put it on my to do list

@ibmicroapple9142 5 лет назад

>be me >Professional intruder >break into GreatScott!'s Garage >Notice flashing LED Stroboscope >Put something in front of it >Now the Stroboscope is absolutely useless >Steal everything i can find and leave unharmed Great idea! :^)

@SamnissArandeen 5 лет назад

That's actually how you time an engine! A light is triggered to flash when the #1 spark plug fires, and is aimed at the crank pulley. You can then use the stroboscopic effect to make the timing marks on the nose of the crankcase and crank pulley readable.

@kioanakos 5 лет назад

An acoustic cleaning horn installed in the garage could also make intruders feel dizzy 😇 Just 200dB of sound pressure without the risk for causing epilepsy 😝

@AutoTechEngineeringDHAKarachi 5 лет назад

Dude, you have awesome equipment and great knowledge of electronics

@MrAtarifreak 5 лет назад

Thank you for the warning at the beginning of the video.

@dejanjankovic9765 2 года назад

Strobe lights don't cause epilepsy, but rather seizures in people who suffer from epilepsy.

@electron-1979 5 лет назад

Thanks for that! Generally, they are called triple-5 (or triple-nickel, if you're American).

@MrAbhilashgopinath 5 лет назад

plz think to make Studio Strobe light with using high power LED controld by ardunio trigger. is it possible (high speed sync) now most of them have DSLR camera online strobe flash lights are highly expencive

@jackrippah 5 лет назад

Very interesting video - btw your schematic drawings and lettering are absolutely beautiful - They look machine generated! Again, thanks for the ideas and effort to produce some very worthwhile videos.

@devttyUSB0 5 лет назад

Yep! I'm now sure i do not suffer from epilepsy. Great scott, i mean, video!

@caecium695 5 лет назад

Thats a proper countersink

@finkelmana 5 лет назад

It cant CAUSE epilepsy. It can trigger an epileptic seizure.

@greatscottlab 5 лет назад

You understood what I wanted to say. Good enough.

@southjerseysound7340 5 лет назад

So how many languages do you speak?

@finkelmana 5 лет назад

@greatscottlab 5 лет назад

I speak 8

@andruloni 5 лет назад

@@southjerseysound7340 I don't see how is that a language issue

@michalkana9764 3 года назад

That is really good, BUT if somebody build it wrong, it can scare with bang. (explosion of capacitor)

@4DRC_ 5 лет назад

The advantage of the microcontroller is that you could randomize the frequency to disorient an intruder further

@SiddheshNan 5 лет назад

This can be used for Halloween as well.. spooky spooky

@timothygodfrey4950 5 лет назад

A flashing light wont cause epilepsy-it does however trigger a seizure.

@superdupergrover9857 5 лет назад

the blue color is more disturbing because the eye has special light sensors for that color blue light- which bypass the normal visual processing portions of the brain and go straight for the pituitary gland. the pituitary gland uses blue light to judge whether it is daytime or not, that's why its a bad idea to look at your phone/computer/tv before bed.

@t1d100 5 лет назад

Maybe start with a bright flash, to blind, but then cut back to a dim flash, to disorient, but not bright enough to see well. I like the random flash idea, too. Do not use red, as red light does not cause night blindness. That is why ships use red light, at night, in the control room.

@drteeth7054 5 лет назад

Strobes can trigger an epileptic attack, but not *cause* epilepsy.

@celivalg 5 лет назад

also the blue flashing light would remember the intruder of police light, giving another mental factor to scare the intruder, not that he will flee as he sees the blue light, but rather that it will give him a stronger feeling of danger

@moth.monster 5 лет назад

Ain't a 555 timer the only thing you need in life

@electricsciencetrick 5 лет назад

Good

@opera5714 5 лет назад

I was worried for a second that the real secrets of high speed strobing would be reviled.

@davidbalfour3390 5 лет назад

I use jb weld to mount the leds to heat sink. Good heat transfer in small amount and easy to do.

@jamest.5001 5 лет назад

I have been thinking about a offgrid security system. Maybe add a motion activated camera and a alarm. Off grid equipment isn't cheap. And I'd like to keep it! Along with the tools and things. I'd like to maybe also use about 3-4 of the 50watt or 100watt and mount them on 2-3 walls per enterable rooms. With alarm. And basically have an explosion of sound and blinding light for anyone who enters unwanted when activated! A coded entry pad would be nice! Great idea!

@99hari55 5 лет назад

Yes...this strobe effect is using fight scenes in live stages or theatres

@TrollFaceTheMan 5 лет назад

You can use a UVC led to not only annoy them, but to also literally roast their eyes :]

@CharlesSnyder 5 лет назад

Randomize the pulses, wouldn't that increase the disorienting effects? Good stuff!

@MrCareyer 5 лет назад

I would Love to See a Video on how to build a DIY lamp from those cheap as beans 10W Led moduls. They cost

@Carolina_Housing_Solutions 4 года назад

Awesome, cant wait to see the conclusion

@joaomarques7180 5 лет назад

How do i know how how much i can safelly increase the voltage value without sacrificing the longevity of the led?

@danijel124 5 лет назад

I watched this video and I have epilepsy now... Thanks a lot greatscott :P

@ZicMortal 5 лет назад

Imagine this connected to Scott's Boombox which starts boomin when intruder is spotted, all followed by Scott's recorded voice "Intruder, intruder .."

@spidermcgavenport8767 5 лет назад

Thank you GreatScott!, much appreciated strobe build.

@spidermcgavenport8767 5 лет назад

Thank you so very much for the warning at the beginning of the video, epilepsy is terrible, migralepsy is even worse.

@dalenassar9152 5 лет назад

On the diagram at about timestamp 7:20 how does the 555 chip drive the high-power 100W LED?

@SuperBrainAK 5 лет назад

I am guessing you are not using the constant current function on the boost converter is because the pulse time would not allow it to ever get to limiting current so you are just using the voltage limit so it is always that voltage and approximately the same current at all times.

@SpaRrRly 5 лет назад

Follow-up DIY or Buy idea: Stroboscopic Musical Instrument Tuner

@jorgepatriciotorres9095 5 лет назад

Muy buen proyecto, creo que deberias aumentar la tension de alimentacion del led para que el t_on/T bajo emita mayor cantidad de luz sin llegar a quemar el led.

@electronic7979 5 лет назад

Excellent project

@blackwingmaster141 5 лет назад

You should get some taps and start making internal threads - results are quite a bit nicer than having nut on the other side of the heatsink. BTW - plain aluminum plates aren't too effective heatsinks - fins are critical to get thermal resistance down

@hohowtf 5 лет назад

Aha! Now the thief will invade your garage with a torchlight to counteract the strobe light!

@jmelb4650 5 лет назад

Just want to say thanks for the warning at the start :)

@danielsimpkins9662 5 лет назад

America: “Wrong house mother f*cker! *cocks gun” UK: “Here’s a party light to steal my stuff to!”

@pramod_Kumar.. 5 лет назад

Why not to try Water levitation??? May be in next Video??

@greatscottlab 5 лет назад

Not sure yet

@ZillionPrey 5 лет назад

Electroboom did a video about that

@Fractured_Code 5 лет назад

You should do a home security/automation series

@the_perigoso 5 лет назад

you got it wrong why bother using a 555 when you can just program a uC

@cashel1111 5 лет назад

he explains, for his purpose theres no point, the timer works well enough

@the_perigoso 5 лет назад

it's a joke

@the_perigoso 5 лет назад

i'd still rather use the uc tho

@TomaszDurlej 5 лет назад

One thing light don't cause epilepsy. It's can cause atak of epilepsy. But you don't get sick from flashing light.

@milokeskinen1681 5 лет назад

Lets hit million subs for scot

@forbiddenera 3 года назад

Maybe lost in translation but it doesn't cause epilepsy..people who HAVE epilepsy can be susceptible to seizures from stroking light.

@unionse7en 5 лет назад

TIP: Just use 2 (or more) concrete anchors to attach a wooden board to the wall, THEN you can use normal screws to attach everything else to that, much easier.

@acf2802 5 лет назад

You can play music and flash disco lights during a home invasion if you really want. In the U.S. the most effective solution is called a gun. They make loud noises and bright light too.

@aurimasknieza7320 5 лет назад

1:45 . Probably not slow-motion but stop-motion. Like those movies made of well done movies with each frame having different motion/animation

@StaticVapour590 5 лет назад

It makes eyes burst for sure

@northshorepx 5 лет назад

Awesome topic. Just what hobby electronics is for... blinking lights, beeping sounds, and intruder alerts!!!!! I have to say - that strobe at the end was really hard to watch!

@ThinkingPear410 5 лет назад

How did you comment a day ago?

@micheltbooltink 5 лет назад

you asked what we find a good solution against burglars. Once. we had burglary traces on a door of our house. then we put mains on the door in the evening. The next morning there was a crowbar at the door. Never had a burglar again

@atpcreations9200 5 лет назад

Sir plz make a stroboscope digital tachometer analyser

@eddievanhorn5497 5 лет назад

Strobing lights don't cause epilepsy. They can cause epileptic seizures in those with epilepsy.

@rishaalramdeen2112 5 лет назад

Great build just the stuff was looking for, I think though that three leds about 2.5 meters away from one another, with slightly different colors and all three set at different frequencies, together with a loud high pitch siren will cause the most discomfort for a burglar. Please do it as an update on this build. Thanks Bro.

@chelarestelar 5 лет назад

Well... I was thinking about something like this but just with a 10W led for using as self-defence at night. I guess that when strobing the led would not need a heatsink if used for a short burst and even a single 18650 could power it (when fully charged: 4'2V*3A12'6W and if strobing it would use even less power than that)