I found wireless LEDs - no batteries needed! in Akihabara, Tokyo 

This is why I love Strange Parts! Works hard to bring us such unique content that I would have never heard of! Thank you Scotty!

How was your vacation? Pretty good, soldered some wireless LEDs in my hotel room

>And I dropped it Ah, I see you learned a lot from Linus.

I challenge you to build a miniature arc reactor in a cave with a box of scraps and then implant it into your chest.

11:30 Dude suggested less expensive cutters from his own store... now that's honest service.

@3:16 "It can't be that hard, right?" LOL I remember in a previous video of you in a 3D printer factory in China, you said the same thing, and that company's engineer immediately started shaking his head.

The output of the coil would be AC I wonder if there were two LED chips in reverse parallel inside the original LED devices. It's also possible that if there was a capacitor on beard then it might have been in series to limit the current through the LED on each polarity change and prevent one LED from trying to sink too much current and affect the intensity of the others. You may find the field in front of a standard RFID card/fob reader also powers the LED in your coil.

7:30 The second coil should work just like the LED - they are both powered through the EM field of the first coil. I think the reason for the second coil, is that it is able to provide a mutual inductance, which is strong enough to provide extra power to the LED. Also, I think the reason for the capacitors is to create an LC circuit so that the circuit resonates at a particular frequency, and u get max power transfer. I presume it's also there as a rectifier.

Those wireless LEDs: Perfect Eletric AC Magnetic field detector. That is awesome.

Not magnetic field, but CHANGE in magnetic field induces the current.

I'm pretty sure the capacitor is used to make the circuit resonate to the frequency of the magnetic field. Thus, you can use a smaller coil, an still have high enough voltage to light up the LED

Million dollar idea on something I've thought about for years - wireless christmas tree lights...

Watching his videos always inspire me to go out and tinker with something, I love the content you bring, keep it up!

Tokyo is amazingly clean.

Successfully finds wireless LEDs Fails to find a screwdriver

thank you Scott, it‘s a pleasure watching you finding out how our world works! it‘s a joy! ☺️

So if you drop one just use a wireless charger as a detector. It will light up 🤷‍♂️

That coil is just an off the shelf surface mount inductor, from the wire thickness and loops I'd guess cd75 220uh

"model robots" fixes glasses I think you mean GUNDAMS :^)

am going to cry this is my home town... i remember everything and every part you filmed! i want to go back haha

Diodes like that, were very popular twenty years ago in Poland. It was like a sticker placed near phone antenna.

Your channel is probably in my top 3 youtube channel priority list...........just love your videos man!!

I love how overtime your videos keep getting better, and you keep becoming more of a serial killer in each thumbnail! Love the content man, keep it up and don't kill anyone

You need the capacitors for tuning the resonance frequency of the LC tank (Inductor-Capacitor tank). These wireless charging systems have a specific resonance frequency (roughly) determined by the square root over the inductance times capacitance, i.e., omega = sqrt(LC) in radians per second. By matching your LC tank of the wireless LED with the resonance frequency of the LC tank at the base, you'll get more efficient power transmission; and thus more wireless distance ;) fun fact: similar principles are at work in radios

Scotty, didn't you know that there is Hououin Kyoma's Future Gadget Lab in Akihabara, Tokyo. There you can find not only screwdriver, but even a time-machine made of microwave oven and cell-phone! :)

Welcome to Tokyo! ようこそ東京へ！☺️👍

I had these in 2005. They would stick on mobile phone's back and light up when a call is received.

The walk around at yodobashi and bic camera was the most exciting part of this video

Season 2 Episode 6: Scotty learns to say "Arigato gozaimasu".

that capacitor shop was so neatly organized wow.

YOU, out of everyone, don't have a pocket screwdriver!? Crap... Then I must be a very weird person

The sheer amount of effort you put into these vids is amazing! Mad props!

Adam Savage would LOVE this!

2:37 "maybe this is a failed product" Huawei phone pops up in the background

I absolutely love watching your adventures , you do a great job of presenting it all ..Even choice of what you film..

OK, so in case I'm missing something here. The capacitors are to limit the voltage and eliminate high frequency noise from entering the chip. They act as a sort of buffer. As for the seemingly passive coil on the X-Base, I believe it works like a passive resonator or something of a feedback loop to activate the charging chip. The charger your friend was using needed the same thing. It just makes it turn on.

Feels Strange to see you in Japan. Hope everything is going good for you now!

Hi, you're the top !! You could create a smartphone cover that turns on when you charge it with RGB LEDs

The capacitors are to compensate the imaginary angle of the AC voltage wave, so it can become a perfect 5V 0°

Humanity is one step closer to have "Bluetooth cordless water hose".

There are several LEGO lighting kits that use this technology. Look at i-brix dot com they are the most popular kits.

Dude, I am addicted to your Videos. Thank you for putting so much work into them. Greets from Berlin, Germany.

I was less interested in the inductance from base to led, and more interested in why the base had *2* coils perpendicular to each other, where one (or was it both) were disconnected from the power. Also a bit interested in how the fact that diodes are one-directional affects things based on the coils orientation in the inducing magnetic field.

I needed a super flat profile led solution for a book I'm re-binding, and this was SOOOOOO FLAMING PERFECT. Thanks for figuring this out!!

to maximise the output you want to tune the LC circuit to the qi charger frequency

Patent pending† † not our patent‡ ‡ not even about the same product, there's just a patent pending somewhere for something

You are such a repair nerd love your work and the way you explain it.

the magic of electromagnetic induction. the electricity passing through the coil produces a magnetic field and that magnetic field induces an electrical current in the coil in the LED lighting it up. Pure magic.

I would recommend to put two LEDs in reverse parallel because for the coil to work, it will pulse an AC current (that's how transformers work) and with only one LED you'll get light only half the wave. Also, the capacitor is used to smooth the voltage and to store some extra energy for the diode, I wouldn't recommend a capacitor higher than 1uf because the coil is working around 100 to 205kHz.

Bro, what a fun channel! At first I was like, "Oh, almost 18 minutes. Let me try to watch it" in a reluctant manor then when it ended I was bummed there wasn't more! Awesome content! Thanks for sharing!!!

In the early 2000s, almost 20 years ago, I bought a wireless LED cellphone antenna. Antennas were often external and removable. My phone was a Motorola v60ti.

😂 "Things you aren't supposed to do in a hotel room", said no one, ever!

Just did 50 turns of 0.1mm diameter wire around 6cm loop and a green LED. Works a treat. Better still if you put a 'phone on top, then instead of flashing, the LED stays on.

As a life long model builder of the mecha variety you are BLOWING MY MIND RIGHT NOW.

I love these videos. They are like going on an adventure or quest to find something. AMAAAZING! Love from India

You have patience and personal drive far beyond the common man or woman. Videos of yours like this one exhaust me, but I really do enjoy them still.

How do you manage to make every single video so interesting??? Love everyone of them, keep up the great work

this tehnology is old on the time of nokia 3310 u buy the and put them on back of ur phone and when recieve a call they light up no wires no cables

FERRITE CHOKE! i saw it too and wanted that test so bad, SO SATISFYING

4:08 >Okay i didnt expect some serious anime otaku action going on in there Considering you are in akihabara, how did you expect something other than that?

I will give you one more Idea. Buy some cheap earphones and use their drivers as your coil. Mount SMD LEDs and viola... It works.

*"I think this might just be an off the shelf rebranding..."* PUROTTO NO FUTO-SA!!!

Strange Parts is the best! Always original content! Thanks Scotty! A hug from Argentina!

Can this man make a bad video? No, all because of the style of his videos... the style makes them enjoyable as well!

All LED's are wireless with AC and a high enough voltage

4:05 "That is not what i was expecting. Some serious anime otaku action going in there" you are in Akihabara. WHAT ARE YOU EXPECTING???? some serious k-pop action going on? lmao

so they did what Nikola Tesla 100 years ago but with LEDs

I absolutely love stuff like this!! I tear everything apart just wanting to know how it works please keep doing things like this.. plus I like knowing that I can buy the original product and not support knock offs

i remember back in late 90s Nokia cell phone switched with custom LED antenna.

This was an very great video about the wireless LED... 9:15 that's a wicked laugh ! :p Happy I found your channel I enjoy your video's !

The world : i just invented this ! This is spectacular invention ! This will disrupt all technology Japanese : founded years ago and selling to gundam hobbyists

I think the effect being used here is called "Resonant inductive coupling". By tuning the frequency of the inductor with a capacitor you can transmit energy further and with higher efficiency to a second tuned coil then you can with a typical (Mutual) inductance.

Nobody: Nikola Tesla: SMH

Tony Stark built this in a cave ....WITH A BOX OF SCRAPS!

watching CONAN o'brien talking about wireless LEDs is awesome

At least a year and a half ago i told my partner i was going to try and make a completely contactless charger and she laughed at me so i moved onto something else. After seeing this i really wish i hadn't listened. Although this is not a charger i know i could have made something after watching you dude. Thank you dude for restoring the faith..respect, peace

Heeeey Scottthayy! You should make your own powerbank for all them phones! That'd be dope!

Damn I sat through the entire video. Love you love Japan. ❤️

Would be great if you could do a video on resonant frequency matching the coils. I would love to learn more of how that works.

Interesting History: Back in the late 90's, but not long into the 2000's, we used to have these everywhere. They were for putting onto our cellphone antennas, back when cellphones had antennas. Every other mall kiosk was selling blinky antenna LEDs for all models of phones (antenna screw types), in all manner of designs (ie, little pot leaf cutouts) and they'd blink like nuts whenever you were receiving a call or having a conversation, or just periodically when the phone was pinging the tower. These only lasted a rather short while, coming into existence at the near tail-end of analog cellphones, as low power digital phones would take over the market. Sadly, digital phones did not have (or really need) external antennas. And so this modern marvel was lost to us. Thanks for discovering these guys. It's been 20 years since I've seen this.

why doesnt he travel with a mini toolkit? seeing that 90% of his vids are all tech building

That "coil" you're saying is an inductor used for most electronics. And also the "coated wire" is called magnetic wires.

Nobody: Strange parts: im going to end xbase's whole career

Everywhere he walked in the video is like me on any random weekend in Akihabara....I love that place. 15 minutes by train from where I live in Edogawa ku. I am going to have to check those lights out.

The parts buffet reminded me of RadioShack back in the day.

*Goes to akihabara* _I didnt think there was so much anime and otaku stuff going on_

"I'm guessing these are two big capacitors" *puts hand in supposed big capacitors*

Thank you very much for this video, i just played it in 0,5 speed just to look at each shop display.. so beautiful and structured display

12:18 what a nice way to select parts. its what I do sometimes, visually check the component/s before I actually buy it 😀 how I wish I could visit japan someday 👍

I NEED a more compact version of this, it would be perfect for makeup applications

>goes to japan >doesnt expect anime wtf nice vid tho

At 12:42 I saw an Amateur radio manufacturer icom logo. That was so interesting to see. I’m a licensed amateur radio operator in the U.S. and an electronics hobbyist. Love seeing that sign

17:10 add capacitor to prevent blinking effect.

I also had wireless LED with my old nokia mobile ... I guess i had a futuristic childhood...😅

Man, I had to pay $500 to get choked in a hotel room.

Glad you found the Power Jack On....I'd have thought you were in the wrong store having found Power Jack Off! 0_0

You should have gone to Daiso or another hyakin (100-yen store). They have all sorts of tools, including screwdrivers, for only 100 yen each.

Yeah i can attest to being able to spend 8 hours in there and not seeing everything nor being able to choose what you want.... I LOVE THAT PLACE!

Great work Scotty, your name sake would be proud! Love this content, unique and always interesting.

! how cool is that!! Keep do stuff like this, i love it and it really shines thought you that you like tickering with stuff and figureing it out