ฝัง
- เผยแพร่เมื่อ 28 พ.ค. 2024
- We're handling some wireless LEDs - pretty amazing stuff. Again we're sponsored by www.PCBWay.com/?from=atomic
I saw these LEDs on the Tested channel originally ( • $15 Wireless LED Light... ) and decided that I had to have some.
You can buy them here from Aliexpress (affiliate link): s.click.aliexpress.com/e/_A4gUEH
If you want to make your own LEDs then a 2.2mH inductor and 220pF capacitor seem to work well - you can see how to do it here: • DIY Wireless LEDs Made...
The mystery chip has been identified - it's a XKT-001 and it's actually controlling XKT-333.
आदित्य Aditya मेहेंदळे Mehendale points out:
The XKT333 looks suspiciously like a MOSFET. I suspect that the 6/7 pin chip is/are the "brains" and the XKT333's gate (pin 8) is driven by pin2 of this other chip with a square-wave. The duty cycle of the square wave is likely 44% - hence "2.2VDC" (average) on this pin.
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And we've got an exciting new newsletter! makernews.substack.com/ - วิทยาศาสตร์และเทคโนโลยี
If you'd like to help support the channel then I have a Patreon page: www.patreon.com/atomic14
And if you're shopping on AliExpress or Amazon then if you click on these links I will get a little bit of affiliate money:
Aliexpress - s.click.aliexpress.com/e/_Ac05mF
Amazon - www.amazon.com/?tag=atomic14-20
You can also join us on Discord here: discord.gg/h2DDnDdjD2
And we've got an exciting new newsletter! makernews.substack.com/
I have an idea for these. Put coil in chessboard. LED light inside frosted glass / resin chess pieces. Would be a cool effect to see the pieces turn off as they're eliminated and removed from the chess board.
bruhhh
Yeah, and you have to put the pieces on the board to determine if they're the whites or blacks (in this case, blues or reds) ;-D
@@FjorimDerHuene that is the icing on the cake. I’m building one.
I would fricking buy this! Genius!
Found this one! th-cam.com/video/Fo0k4rvpctY/w-d-xo.html&ab_channel=MichaelMaupin
Get some plastic reusable ice cubes and put them inside and reseal the cubes. Put the coil under a drink coaster. When you set your glass on the coaster, the ice cubes light up.
This is genius.
Each guest can have a different color or mix, so they know whose drink is whose..... 🤔
A project idea I have will need a lot more LEDs. Spread them out in a grid in the ground outside (porch / garden etc). Move around with the wireless coil and see them lightup with your route. Can be used in RC car racing tracks aswell, where the rc cars carry a small wirless coil, lighning up the track wherever they go.
I love the RC track idea.
This is how you get TRON! Do you want to get TRON?
@@horrorhotel1999 tron means?
@@kotresh How old are you? It's a movie from 1982! 🤣
@@uweroddinger393 20
In Japan, back in 1996 there were this antena cap with LED at the top, kids love it at the time. When they receive a call the led start to flash or blink.
This would work well as a puzzle prop for one of those escape rooms.... If you placed an led in a translucent 3d printed gem, you could embed the coil into a chalice or something so that when the gem is placed in it, it will light up. You could even monitor the current of the coil circuit to trigger some door latch or something once you've placed enough gems in the chalice. Since the leds don't draw that much current, you might need a few before you could reliably detect it, but that could be part of the puzzle!
Probably it would be easier with a magnetic switch and a small battery tho, so nothing needs to be connected to power.
Use clear resin to make the “gemstones”, then you can cut and sand to the desired shape or size.
Furhermore, you could have several gems with only a few of them having "magical properties". You'd use some "magic harmonizer" to light up the gems that will allow you to progress.
put a blacklight LED so that when you place it on the correct spot, it reveals hidden text.
what, me? noooo i've totally not been learning electrical engineering just to design escape rooms..
Endless applications in modeling and dioramas! Makes it easier for us un-electric types to light stuff up without solder, circuits, etc.!
I was thinking the same thing. The flashing lights would look great on a model cop car.
The inductors have very low range. Think about the charger for your toothbrush or cellphone.
Would be great for modelling - put the coil in the bas of a building and the put lights where you need without having to run tiny wires. Or use a base and separate vehicle lights.
I was thinking scale RC Ships myself. For things like mast and exterior lighting things that it's a bit harder to hide the wiring for or if burns out is obnoxious to replace and too much weight up high can be a problem.
i was just thinking that. Headlights or for Emergency vehicles.
Headlamps and Rear lights in Model Car builds,
I'm just about to build 1:600 scale model of Star Trek Original Series Enterprise.. You can buy a lighting kit for it, but it's messy and expensive. These would do the lighting job perfectly for running lights and window lighting me thinks as the coil could live in the saucer section where most of the effects are needed..
@@JETJOOBOY head lamp in a lego hard hat.
These would be great for adding LEDs to model kits if you make a base stand with a coil in it.
Would make much better Christmas tree lights as the coil could be in a stem and the leds just prinkle onto the tree. no more wire mess when putting the tree up.
“No more wire mess when putting the tree up”
Sadly, with the distance those can be from the coil before dimming greatly, you would have potentially more of a wire mess due to the coils themselves and then the wires to power that unless you make/find a circuit and use battery power that you can hide away easier. If not, you’ll have much more wiring to deal with. It’s a great idea and good job buddy for the video. It was fantastic. I appreciate it!
Coil tinsel?? 😃🎄
You can buy trees that have fibre optics in the branches. You e been able to buy them for nearly 20 years
I have a bedside table with an integrated QI charging pad.
With these LEDs I could put a small Christmas tree there :)
This is a very inefficient way of transmitting power tho
You loose like 90% of the power you consume on having them wireless
As far as projects go, I really want to cast these into dice and then cast the wireless loop into a dice rolling tray. This way, when you roll the dice they glow! (bonus points if the LED shines out the high-side).
Something like these smart dice?
th-cam.com/video/UxT8COXu6zE/w-d-xo.html
i love this idea.
@@jurgmanx4644 dude I just looked that shit up and it's amazing, thanks for sharing!
@@meawreg and its all open sause so ya can improve and tweak. Its on my to do list, after minis. I should order a flexible pcb soon tho.
@@jurgmanx4644 you are amazing! Keep up the good work!
This could take model kit lightning to another whole level. Love it.
As mentioned on other comments cast them inside of resin. One cool idea comes to mind, of making set of dice that light up when you throw them on the dice container, though this would need to be worked with some dice manufacturer to get balance just right to it to work.
Fun stuff... Build a "snowglobe" with wireless LED floating in small "bubbles" inside the large water sphere.
Nice! I was thinking of a "firefly-globe" haha
genius idea... I think you need to find the right liquid that will provide neutral buoyancy. Also if the liquid is conductive.. you may need to dip each led into a clear epoxy coating to avoid shorting out. Then a slow circulating pump to provide agitation to the liquid. I would also suggest a larger sized globe to keep proportions looking nice.
@@panofish I've expermented with it, but I found neutral buoyancy very hard to achieve. still, I'm totally popping a few of these into a bong.
i would mount a coil in my door near the lock, then epoxy a few leds in a key fob, so you have a simple flashlight to see the lock at night.
That's a great idea!
You'll kill your battery
3:37 That's exactly what it should be, in reality the chip is pulsing Vcc into the coil when filtered by the LC circuit the higher order harmonics of the square wave are destroyed and an ugly, ringy, half-cycle sine wave remains. You're pretty much spot on with your reverse engineering!
Thanks!
This brightened my day, thank you.
I always thought that LED Pool Lighting (Underwater) should use an Inductive Coil. In this way, the Lighting Module could be completely sealed in Resin, with absolutely no wiring, and no chance of water ingress to destroy the LED Light Unit. I have already had to replace one expensive LED Underwater Light - due to water ingress.
I did this with my pool. Using high brightness blue COB LED's and an inductive heater driver on the dirt side of the pool. I embedded magnets where the LED would stick to the inside of the pool. Works quite well.
that is a proper and logical use.
@@cap5856
I'd guess being submerged in 10,000 gallons of water would mitigate the heat of the coils a bit.
@@cap5856
I was thinking it would be like a puck on the wall of the pool based on what John H wrote.
Out of interest who did you buy these underwater lights from?
make a lava lamp . where the lava are the LED's , make the led's water proof. and place the led in water and put a water pump inside so that the leds float in water from bottom to top or vise versa. place the electric coil at the bottom .
this would be a beautiful project :)
BEAUTIFUL LITTLE GADGETS! Look handy for a lot of things!
Now that's awesome! These are pretty cool!
The XKT-333 has the pinout of a common MOSFET, but possibly optimised for this application. The 6-pin chip appears to be generating a fixed frequency output based on the resistors, as there appears to be no feedback.
I'll guess the 6-pin chip is a VCO (Voltage Controlled Oscillator).
@@bigclivedotcom That's it - a pretty simple circuit really, MOSFET driven by an oscillator with an LC circuit - I've redone the reverse engineering here th-cam.com/video/jdc_0r5pJPc/w-d-xo.html - but would be great to see a Big Clive video doing it properly :)
Also - OMG - Big Clive has commented on one of my videos!
@@atomic14 that's all you get for Christmas.
Yea Big Clive
Embed them in a block of clear resin, so that people can see them floating around in there without any wires. Then you can just hide the wireless "charger" under a table or something.
@@simonwilson7581 The fact that they are wireless is emphasized because they are floating around in a block of resin. Having them laying in a corner somewhere people would probably not think too much about it, as they might just assume they have some tiny wires or batteries connected. With resin people can clearly see that none of them are connected and that you can't grab the LED's to change a micro battery.
Mood lighting for dinner. In the bottom of drinks glasses they can glow when placed in the right place
@@danthelambboy great idea!
My first thought.
Will be doing this 👍
I can think of some very useful application of this product both in science & decor !
thanks to you and a comment here, i have some awesome ideas i will definetly try to make!
Over 25 years ago I had a Nokia (6210 I think??) you could change the stumpy antenna for an after market one with a multi LED set up that would flash when you was about to receive a call or text or make a call. I was always amazed that they would work with no external connections.
Excellent. I made one 20 years ago when messing with Tesla patents.
If you have hundreds, put them in a glass vase from Dollar store and build a base with the transmitter coil inside the base, to hold the vase on top.
Like capturing hundreds of non-flashing fireflies!
That's sounds like a great idea - I'm going to try making some myself - have a bunch of inductors to try out.
@@atomic14 👍
You could make a vase with up to three coils on right angle axes, going on and off at different rates. The LEDs will blink differently at different orientations.
Imagine what our world is going to look like in the next 5 years just with this alone. Super clean set ups!
I remember a circuit designed to alert you to someone touching a door knob. (Intended to be used at a hotel, for example)
It used two tuned circuits which were thrown into imbalance when a hand touched the doorknob...these LEDs can be made to be held between the balanced circuits, thus in the unlit state. When a hand touches the doorknob, the imbalance created would allow the led to light.
a key mod that lights up when near a dark keyhole to help locate the hole in the dark
I made something with this concept for my elderly mother in 1993 but it was too bulky. I used a small AAA, I didn't think of watch battery, alas.
I have an old blower wheel from an air conditioner. I have considered mounting it on bearings on a pole in my backyard as a form of yard art. I have considered mounting LEDs to it as well so the spinning motion makes them blink. It would be interesting to see if they would blink as a magnet is moved past them.
if not you could put a bigger coil by the magnet and drive the original circuit
They may blink. Depends on the tuning of the coil, and the frequency of the magnet going by
Sounds like a cool variation on a Dream Machine ala Brion Gysin
Its cool how they applied induction lighting to LEDs. Although its fairly old tech.
Great for jewelry or decorating small areas around the home or office I would think. I have no idea how they work, but since they can light up and aren't hooked to a wire, they would look great as ring stones, earring studs, brooches or pieces for hair ornament.
You are holding it beside a metal ruler. Maybe compare it against a wooden one to find out the true range from power source.
You gave the answer why the coil signal looks like this yourself at 4:30:
The coil is connected between +5V and a powerswitch.
The Powerswitch switches that connection of the coil to GND.
now, if you connect an oscilloscope probe across the coil inputs, you get a nice sine when the switch is open, and a nice constant 5V when its closed.
A superconductor with a floating object spinning above it which lights up when your hand (in glove with coil) moves near. The magic of wireless induction. André
Amazing how fast tech is shrinking. future is going to be wild in the modeling/R/C industry.
that steel ruler is probably affecting the range.
I believe the "odd waveform"at 3:34 is the sine wave emitted by the charger being half-wave rectified by the "diode" part of the LED. The positive half of the wave is allowed to pass, but the negative half is blocked by the LED. If you put a full-bridge rectifier on the tiny PCB before filtering it through the capacitor, you would probably get a brighter output from the LED.
Well, you would be wrong. The power source is DC so there is no sinewave. Converting DC into a sinewave takes more circuitry than you, apparently, can imagine. Even a pseudo-sinewave is difficult (often called a modified sinewave, but done for marketing purposes because it's a modified square wave. Why would you modify a sine wave?) to build. This is nothing more than a tuned chopper circuit. Change the frequency or induction coil enough and you will get closer and closer to the chopped DC signal.
I'm not even going to comment on the ridiculousness of the full-wave bridge rectification you noted.
You may be the smartest one in the room, but it's classic Dunning-Kruger to the rest of us.
@@DiffEQ lol I have a degree in electrical engineering... I'm not an analog electrics expert by any means, but according to the circuit diagram he showed and the oscilloscope readout, the giant coil powering the LEDs is being pulsed with DC, and the inductance of the coil is filtering the pulsed DC waveform into a pseudo-sinewave.
That pseudo-sinewave is then picked up by the inductors on the LEDs, and filtered with the capacitors and the negative half is chopped by the diode in the circuit.
As far as the LED circuit behavior goes, it's exactly the same as any AC circuit.
If I'm misunderstanding how this works I'd love to know, but that's how all of the wireless power transmission methods I've studied work, so I assume this is pretty much the same. I would recommend looking up transformers and antennas if you want to learn more! Electrical engineering is a really cool field! (Pun fully intended!)
Lmao I published a link and got auto-removed
Anyway I was saying that I did a simulation showing how you can totally get a sine wave by shorting a parallel LC circuit to ground with a DC source, it's a basic resonnance phenomenon
I simulated the circuit shown in the video using a NPN saturated with a square pulse at the resonant freq of the LC and it works fine.
Also, I get the same waveform when coupling the L with another LC (the LED side) in parallel with a diode. The Vf of the diode shorts the receiver coil and steals power from the emitter, which causes the flat response.
Edit: Forgot to add: Richard u stoopid
Here is some insight: first, yes, you do get a sinusoidal waveform with the setup shown (inductive transmission of square waves into a resonant tank circuit). However, the wave becomes clipped due to the shunting action of the diode being lit, because it is drawing current when forward biased. When reversed biased, it does not conduct so the sine wave is untouched and its full voltage excursion is displayed by the oscilloscope. Half wave rectification is typically done with the opposite topology (series rather than shunt). Usually you see shunt rectification in RF and AM diode detectors.
Squeal !!! These little darling will solve a tricky problem with lighting my very very large miniature dollhouse. Thank you so much.
Perfect to illuminate the cockpit instrument panel of those scale model aircraft kits - without the hassle of wiring-up!
Put them in a container of clear oil or other non-conductive fluid, then use a pump or agitator to swirl them around like a lava lamp.
Or I guess you could cover them in epoxy then use water in the container.
Actually don't do that because I want to do it now!
I got some of these, I didn't realise how dense they are! I was able to get one to float by sticking a big piece of styrofoam to it, but I'm not sure how many you could have in a jar and still be able to see the lights.
I would encase them in clear resin with little folds like raisins, then put them in a bottle of fizzy water, and coil below or on the side of the bottle and watch them rise and fall showing the model of cavitation and boyancy.
omg visualizing that wireless data from the charger was super cool!
Model kit makers will love these. Whenever Moebius comes out with it's Aries 1b from 2001, these will be great.
Wear the coil as bracelet and glue the leds to your fingernails/fingertips?
If you change the capacitor on some of the wireless LED you can change the frequency of the tuned circuit, by driving the charging coil with different frequencies you can choose which LEDs come on and when.
You will need a wide span on frequencies because LC circuits have a wide bandwidth.
Now this is a very interesting and unique idea.
Very cool video. I used to work for a company in New York that sold LED lighting. We did experiments to find what color lights lasted the longest also the output of the LED. We did a burn test for a long time to see how long each style of LED would last. White light is not excellent, both warm white and cool light . Red light lasts the longest. It also depends on the voltage and the circuit board it is driven on
The RX coils output sine waveform, looks flat on one side, because the flat area is where it's sinking current into the LED and the LED is forward conducting. So technically 'yes' the waveform is upside down, but only from the perspective of driving the LED with a possitive voltage, else it's the same as driving a reversed LED with a negative voltage.
Also you are correct that the phone chargers don't output all the time and do handshake and ping pulses(as well as tell the TX coil how hard to drive itself so the RX coil sees a reasonable voltage), another thing they do is FOD(foreign object detection) to make sure they aren't sinking their power into something conductive nearby other than the phone.
The simple answer ... Cause led as being a diode adn with a cap . Its just showing the positive cycle of sine wave
That would be awesome as board game pieces
Bloody oath Thunderbird they would.
Damn, this is a huge game changer for us gunpla model builders. Now more messing around with multiple electronic wiring .🥰
These could be used in costuming! Too cool, the possibilities are endless, really!
I need to buy some of these and put them in 3dprint gemstones, either clear filament or resin and make myself a desk ornament with a dragon treasure or something. I guess these pieces would be great for some kind of board game, especially if you can get them with different frequency response.
Thank you for the hint.
The Qi standard negotiate the power with the phone, i.e. 5, 10, or 15 Watt. Also, it detect the presence of metallic objects that can short the electromagnetic field.
The wireless LEDs are a barebone circuit, they don't reply to the inquiries of the charger, which therefore turns off.
You can build a simpler, crude driver for the coil you use to power the LED, with a 555 wired as an astable multivibrator, and a power transistor driving the coil. Try to use the Qi base frequency of 140 KHz, which is the best compromise for minimising coil losses.
Thank you for showing this.
Note that the coil you have built to drive the wireless LEDs, is a crude LW low power transmitter, which can disable long wave radio reception within the house.
could you increase the field potentecy by putting it in a microwave? could you cut a hole in the wire mesh on the microwave door and make it a directed microwave beam and power those things or other things at a distance?
Question, how did you learn about this type of stuff? Aside from going to college for it, do you recommend any resources that I can purchase/watch/check out to gain further knowledge about LEDs and the other things you spoke of, understanding the whole process of what you're explaining, and getting a grasp on electronics like this? I've always been very interested from an outside perspective, but have never known how or where to dive in - I really appreciate any recommendation you have!
You can even go easier than that. A simple "Joule Thief" circuit is able to power a coil, and get some distance powering an LED with your own hand wound coil attached to the LED leads. Ive done it before using a single AA battery, and it works a charm. You could build your own "joule thief" circuit, OR harvest one out of a 1 dollar solar garden light, remove the LED, and attach a coil to where the LED used to be. I've done it both ways, and it works.
If I was seizure receptive I'd have been convulsing 🤣 the warning label was there, but I was too engaged listening to the dialogue that I took too long to read the message on the screen. Then the lights began to flash 👀😂
This will be a good little project to build!
I am imagining a cube of translucent blocks like a Rubik's cube but linked together at the center to allow them to light up only when they are able to connect to form logic circuits optically with wireless photovoltaic cells. This could create a new kind of game.
My first thought was light bright. Since they can be placed in any space within the parameters you gave, that means you could make a 3d light bright setup that goes above, below, and all around the coil.
Oh I like you
That's what they remind me of! Lol
Great idea a retro toy upgraded to new tech
Whoa these remind me of the old stickers you used to get back in the day for mobile phones, they used to flash while making calls because of the oscillation of radio waves
Hey! Those LEDs mounted in one of those magnetic levitating globes would really be neat. Not only levitates but lights up without any wires!
Very cool idea, but I think people will simply assume them to be battery powered
I already know what I'm going to use on my Christmas tree.
Those would be cool in a board game with glowing pieces or playfield.
Thank for full detailed
It can be used as Gunpla's eye lightning no more worries about placing batteries and some cable anymore,just need to attach it's coil to the base and it will light up the LED,this is COOL!!
make a ledlamp (lavalamp)
and have mineral oil in it and it can stand on the charger.
have some pump or rotating thing in it so the leds swirl around
consider your ruler may be increasing the range!
i wonder if results would be different with a non-metalic ruler
Precisely, a steel ruler may connect the magnetic field of the induction coil way beyond the coil's plane. An induction coil attached to the oscilloscope could measure this.
discovered your channel today on this video.
Subscribed
great job kept up!
Looks like this will be great for a signal system for a miniature train or auto layout. Maybe walk or don't walk signals when a vehicle passes a certain point. Good luck! Cheers!
Coat them in epoxy - ball shape and have some liquid and agitation (maybe lava lamp or one of those piezo sonic agitators and have the light balls agitated in the liquid and with the wireless charger in the base. You would have the bases of something that some may like. Depending upon how far you can agitate (mineral oil may be good liquid) and container, you may get them far enough away so they're dimming will add to things.
Probably start with jam jar and work out liquid so they are almost balanced and shake, place upon wireless charger and see if as an effort it has potential.
But need to avail the whole wireless light aspect and floating some how would be best.
Another idea - again make into epoxy marbles and do a marble track machine and have them light up in places.
But I'd also be tempted to carry one around with me as, if it ever flashes - you have found a source of free energy ;).
I like it - hadn’t thought of actually putting them in liquid - but obvious really, you can seal them completely.
And if there were a way to assemble them with two LEDs connected in opposite directions across the coil so they'd illuminate the whole light ball - especially with some diffusion material in the mix. ;)
@@FurrBeard Interesting, AFAIK wireless chargers induce AC and as LED's are diodes. Then I'm wondering if you could connect two to the coil in opposite polarity and tap all that power. Which would make the 360 lighting effect easier. Though doing one layer to coat and sanding that down, then doing finish shape coat would get you a long way I suspect already.
I wanna put these in my fish tank
Do not use a metal ruler for measuring in this case it messes with the magnetic fields and might even amplify or strengthen the magnetic fields which makes the measurement far from accurate
Thinking the same thing. I wonder what the difference is when using a plastic ruler instead.
@@erikaadvisser for the purposes of this experiment a stainless steel ruler is fine. Permeability of SS is not that high. Presumably the power falls off with R^3 (magnetic field)
Simply outstanding!👏👏👍👍👍
I have a few projects these would be great in, i definitely need to order some asap
3:31 - The signal on the coil is a half-sine wave - Because the drive circuit is a "Class E" type. In this topology, there is only one N-CH MOSFET that pulls the current from the coil, and the current is pushed back by the inductance of the coil itself and a resonating capacitor in parallel to the coil. The result is a push-pull current through the coil, but with only 1 MOSFET transistor. This is the cheapest drive circuit. The downside is that this circuit has to be tuned for a certain frequency, unlike regular push-pull drivers (half-bridge). Check for more explanation on Class-E on the web.
This. I don't recognize the part numbers, but the pinout and application looks absolutely like a MOSFET output.
Which in turn means the 6-pin device is, probably not any kind of controller, though possibly; it's most likely an adjustable squarewave oscillator. In the past I've used parts like LTC6990, adjustable silicon oscillator; in effect a nicer version of a 555 (less versatile, easier to use for simple applications). The pinout doesn't match so it might be a similar part from someone else.
Correct - the big chip is just a MOSFET the 6 pin chip is an XKT001. I've fixed up the reverse engineering in the DIY video: th-cam.com/video/jdc_0r5pJPc/w-d-xo.html
why did you use a metal (stainless steel) ruler to measure the distance? that would affect the fields...
Luminosity party... the dance floor encircled by the pulse with everyone chilling with LED s in the middle. Done right would be next level.
after the first 30 seconds (after you did a little more closeup to the LEDs) my instant thought was "what a shame- and senseless waste of copper"... every LED base with a coil... as if those guys who do them would have discovered inductive current... but maybe i am wrong, and if they just were wired would use up more copper... but you still have to have the wiring and the "coil" around them for supplying them with power
Project idea: Make a small piece of art--maybe a 3d printed geometric shape or something, and then put the LEDs inside. After, cast the whole thing in clear/colored resin/epoxy, and then you have a cool desk ornament that glows from within when placed in the right spot.
Put a bunch of blue ones into a little sword and the coil into a Orc halloween costume, then you got a real life working Sting from lord of the rings
tune each led to a different frequency by changing the cap/resistor and make a magic wand for detecting RF
👍🏼 Like this one! 😎✌🏼
The only project that comes to mind is illuminated patches and artwork for clothing. You would use hook and loop fasteners to put the artwork on one side of the clothing, and to attach coils to the other side. When time to wash, one could remove the art and coils, and launder as usual.
These are friggin sweet. I wonder what neat little devices can be made with these.
Nice I've made those before, it's surprisingly easy to create, although those seem to be very well tuned as their range is great compared to the ones I've created which use a much beefier "transmitter".
Hey I know this comment is about 6 months old so I hope you see this but wondering if you know of a tutorial on how to make them? I would like to make some for 1mm LEDs.
Try making a very large diameter coil (2 meters or so) and place a Christmas tree inside of it with the LEDs glued to branches. You'd probably have to build your own driver circuit, and those with pacemakers may want to stand far away.
How about a replica of Saturn with the rings being the coil, and the LEDs on or inside the globe ?
This will be amazing to put ligths in small model cars like hotwheels...amazing channel and content thanx from Spain :)
Can the LEDs be water sealed? If so you could do a snow globe with the coil at the bottom of the globe. The only thing to work out would be what fluid would be weight neutral so the LEDs float around evenly inside.
dip them in wax
That's a really good idea!
I think that the liquid doesn't have to be necessarily weight neutral. Maybe they could also move around, maaaaybe with the help of a mini pumper
Bro you just blew my mind
I feel like the weight of the LED's would make up for a more viscous liquid, Mineral oil should work fine?
That would totally work. as Taylor Hawthorne said just get a viscous enough liquid.
If the L/C circuit is tuned differently for each one, you could then control which ones are lit based on frequency and amplitude modulation.
Thumbs up for the BigClive reference.
Great video well done!
Make only blue LEDs and put a bunch of them in your hand. At night you go somewhere where some ppl are around and you open both hands together and look into it, and when someone looks at you, then you close hands fast and look at them and run away as fast as you can
The waveform you have measured is a modified class-E amplifier drain voltage waveform. That waveform, being fed into the coil and resonates with the load capacitor, forms a perfect sine wave, which drives the load. You can try to remove the LED and see if you get a sine wave on the receiver coil. The half sine is converter to full sine by using a tuned filter (in this case, a parallel LC tank comprised of the tx coil and tx capacitor, as well as any load rx coils and rx capacitors, where in a classic class-E it would be a series tank L and tank capacitor), which filters out higher harmonics (the clipped part's Fourier transform).
If you havnt got some sort off super solar run l.e.d smart shed for growing all your food and varies other projects then your talents are being waisted sir..
@@jshaw4757 Well, I have a PhD in power electronics and I make a living by making energy utilization more efficient.
@@bskull3232 My kinda dude show me your lab bro lol..
@@bskull3232 No home projects no dexters lab hidden..??
@@bskull3232 I dabble in that myself very much intrested in alternate ways off energy/power n the history...building a l.e.d solar shed among various other things..currently building salt batteries had some great results i just need a buck converter to up the amps/current..lower the volts to increase the current im told this is possible..volts are no issue can get whatever needed for a decent ammount off time too..maybe you could help me mate if u get a minuite cheers
My first thought is to use them during Astrophotography sessions. We need very dim lights (usually red) so we can preserve our night vision. I'd put the lights near my focuser knobs, EQ mount hand controller, Inrervalometer, tripod legs, chair and various other places I want to not bump while taking pictures and navigating around my picture taking site. It's common to take pictures from just after dark until almost sun rise.
Another use is night lights from bedroom to bathroom for adults and todlers.
They'd be useful in automobiles as dim indicator lights at various times.
Thanks for the video and for sharing how to make them as a DIY project.
You could use it as a lighting scheme for a model train layout. But it might interfere with the DCC controllers. More experimentation should be conducted near the train layout.
Suggestion for use:
I want something like this for my restaurant. I’m planning to use something similar for guests to pick up when they arrive. It would be a glass or similar clear item that changes color for alerts. One color when their table is ready for them, another to alert them of which table is theirs, maybe a last color to inform them of when a dish is done being cooked and is being plated up and in the way.
I want novelties that no other restaurant has or has ever tried.
These + some fiber optic threads would be perfect for miniatures. Instead of using the LEDs in the eyes or what ever, put the LEDs in the base of the minis and use fiber optic threads that go down to the LEDs in the base. You'll get brighter lights, and you can mix/match fiber cables for different colors thread them around the minis a bit better. Just print the minis hollow and in multiple parts where you can use a tiny dremel bit to make channels for the fiber optic cables.
That's an awesome idea....
@@HeronMarkedBlade-ef7zz Thank you. I was looking at some of the larger 24v coils, looks like the LEDs are self regulating. But with a bunch of coils on a TTRPG tile board, you can embed these LEDs into all kinds of things. Glowing lava, fire, torches, sconces, and so much more.
Got a dungeon? Turn the room lights low and use the actual light from the sconces and torches to show what is and isn't in low light and total darkness. Just use some diffusers to spread the light out.
I’m not getting a new one ☝️ I’m going out of the house 🏠 I’m pretty 😍 and it looks pretty 😍 and the other is like 👍 I just saw a post and a few other pictures I have a few days to do you want it but it’s just like 👍 but it’s like 👍 but I’m sure it will do that I have no clue 🕵️♂️ I’m just not in it and I’m looking
You know what we had them as pendents on our phones years years ago? and nothing is new about them? and they are just coming back?
Who remembers>
Obligatory XKCD: xkcd.com/1053/
@@atomic14 perfect!
This is something that I REALLY want to buy, but I would not know what to do with it. Shiny, cool stuff!
really nice, thanks for sharing.
You could make a real life "hot/cold" detection system with the coil planted somewhere and a "key" that lights up as it gets closer in proximity to the coil.
The LED acts as a diode and half-wave rectifies the signal so that it is a chopped-off sine wave. That is why the signal looks flat on the bottom of the cycles. The LED does not conduct then.
Hence LED = Light Emitting Diode :)
Suggestion, small gemstone looking casings for the leds, put them in a snow globe style domed container (minus the water) and hide the power ring inside the base of the dome. Maybe make the I side decorated like a pile of treasures.