I love the “buy my books” outfit

Note that the LED strip used is WS2812B. They're individually addressable LEDs that have the WS2812B chip inside each one. The signal goes into *signal in* and goes out of "signal out" into the next strip's "signal in". Note that the Arduino is incapable of driving a long strip. For that you'll need to add 5V power to the strip. The reason why you have to specify the length of the strip and how the chips determine how many LEDs are in the strip is because after the signal passes through one LED, a bit of data gets added that tells the next chip how many times the data has previously passed through a chip. The Arduino needs to know how many LEDs there are so that half of the strip isn't dark if not enough LEDs are specified. If the number of LEDs falls short, the next LED won't know what color it should be, what brightness etc. It defaults to all colors off because the data isn't *addressed* to it or the following LEDs. If you want extra modes in your code, you can use *variables.* You can change the state of a variable based on an event, and then call a variable and execute the function it matches. Let's say you make a variable called Mode. You can add a number to the variable. Let's say each time you press a button, the variable number grows by 1. The variable will be set to 0 at the start of the sketch. When you press the button the variable reaches 1 and an animation code is executed. If the variable reaches 2, a different animation is executed. You can now press the button again to set the variable to 3. Now another animation will be played. But when the variable gets to 4, a different code is executed. Now it sets the variable to 0. When the variable is 0, no animation is played and all LEDs are off. Don't forget to add the part that resets the variable to 0 or it will continue to grow until you either reset or the variable can't fit into the memory of the Arduino anymore. You can have the variable start from 1 and get reset to 1 if you want the animations to cycle instead of turning off. You can add as many variables as the memory of the Arduino permits to perform a lot of modes.

btw if you're getting an error with the "old" strandtest code from the link in the descrpition make sure to add after #include at the top :)

Also a small note, if you want to 'disable' multiple lines in your code you can type /* 'whatever code you don't need' */ For example: /* rainbow(20); rainbowCycle(20); */ This will disable everything between the two 'markers' in your code. It's just a neat shortcut if you have to disable lots of lines which are right after each other :)

I love how much energy you manage to pack into your videos! 🤩 Adorable and informative, I enjoy playing around with code, but never thought to put it into my clothing. I need to start a new project now. Thank you for your videos. :-)

Thank God my husband went into programming and knows all about writing codes. He showed me that me made a simple calculator for a project once, so I have faith he can help me with this when I get things wrong.

This definitely takes some practice but is an awesome elevation to any cosplay. Also, I don't know which of you does the editing of your videos but it cracks me up...I love it. You two are so creative and cleaver with your videos. BHB.

I think your top worked on me. I just went and bought the complete digital set of books. After a quick scan through I can say I'm already happy with my purchase!! Love your work!

Anyway! Now everybody know that we are all going to continue to have a hard time until Kamui explain how to do stuff!!!! So today I propose officialy to create the ultimate source of knowlege: Kamuipedia PS:

This came up exactly when I was looking for a tutorial on the code! Thank you!

this is very similar to working with prim code in 'second life' some years back and this is very handy for where to find the board + run program

This is an awesome tutorial. I've always been scared to look into arduino, but you made it simple. As soon as I get some funds I will try it. Thank you so much, and thanks for sharing.

lol.. I must say that is a cute dress! It's been fun over the past couple years that I've been watching your videos waiting for you to somehow promote your books.. but this is by far the best! You are awesome and I love your work.

I needed this video to make the cosplay of my dreams exactly as I imagined, and now that I can and that I know that its not as hard ad i thought, i can finally cry tears of joy 😭 Thank you Svetlana, you and Benni will always be my favourite crafters and cosplayer ever!

!!!!!! aaaa I wanna make light up stuff now!!! This is so exciting!!! thank you so much for making awesome tutorials!!! Also the corgi animation are adorable!!!

Programming 101: Google the code, don't write it yourself. Seriously.

I am studying electronic engineer, I am otaku and I like to do cosplay, this video shows me my true destiny

Your videos are so informative and fun!!! Thank you for making them!!!

Neopixel LEDs are also used in the lightsaber community to get realistic Blade effects :)

Super helpful! Looks like there are some things in the book I can revisit, too.

I love the corgi animations!

This girl and this channel are awesome! She explains so well and always has a big smile ok her face. She has a really good vibe! Thanks for all the tips and videos!

Wow ive been working with microcontrollers for uear but your project is the first time ive seen anything this creative. Great video.

Make more books and I'll buy them! I have almost all of them hahaha

Her genuine unbridled excitement is adorable.

Love the dress. I think you are definitely sending a message about your books. 😀

Hi Svetlana this has been a massive help and so simple. many thanks

I wanna make a zinogre suit in the future that has the exact build of the monster for the body and lights up exactly like the real thing does. It will take some time until I have the practice (started using a dremel for my second project now so still a bit rough with skills) but that is a big dream of mine. I hope and will work hard for it

That's a really great explanation! Thank you so much! That helps me a lot :)

Code is absolutely terrifying to me but you made this so easy! Thank you so much!

Тот случай когда ищешь идеи на английском, а тут Светлана рассказывает забавную идею достаточно подробно. Спасибо, пойду дальше кодить свои поделки.

Woah! Thank you so much for this! I was racking my brain figuring out if i wanted to dip my toes back to coding or just build separate machines to light ip my gun project. This simplifies it so much.! Fan of your cosplay on fb. You are so magnificent! So far i build for fun but I’ll eventually move towards selling.

Holy snap! I really hope I can find someone who knows what they are doing when I get this far in my cosplay. I quit programming over forty years ago. I used to know BASIC and APL pretty well, but... Can imagine I'll be watching this one over and over again... Wow.

AMAZING! Thanks a lot for the tutorial!

Love the corgi animations!

I know very little about LEDs and I’m planning to do some Bioshock Big Sister/ Big Daddy cosplays and wanted to make the light in the helmets change between red and white so this is absolutely perfect, thank you Kamui!! I’m definitely gonna look into your LED book, I feel like I’m getting the hang of this : )

Inspired? Love you just "killed" me ;) Im rebuilding the interior on my old Audi TT and you just showed me a total new way to do so! Thank you and keep up the good work, it´s amasing to see your costumes they look fantastic!

should have known your channel would have the best answer for my question. thanks !!

Love your vest😂 Also thank you for the vid

Great work as always !!

Oh, thank you! I have arduino now in my studies :D

Ok, thats the book that i need

Me encantan tus videos y tus cosplays, me ayudas a ver que aun tengo mucho que aprender

Thank you so much this extremely helpful. This answers some problems i had.

Something is telling me to buy your books but i don't know what it is....

Another interesting and well-presented video. You have a great technique

I love that you’re doing Arduino

Parabéns pelo trabalho eu adoro assistir seus vídeos 😍 sou do Rio de janeiro (Brasil)

Great instructional video! Thank you for posting this! God bless.

Amazing Kamui!

I really do love watching your video you are very informative and bring up subjects I would not have thought about thank you you're helping make my cosplay so much easier seriously thank you I've even been using your information for items and remakes of items in my man cave I have used your ideas thank you for Fallout helmets Bluetooth motion speakers and countless others thank you

Thank you! That makes it much less confusing.

Nach genau so einem Video hab ich gesucht !!!

Thank you sooo much! trust me I'll put led's everywhere!

LOL.. Nice dress.. Thumbs Up just for the dress

OMG! I already Loved you when I saw all your costume stuff, Now you are my FAVORITE person!!! I messing with LEDs right now and ran into this looking for button examples.

It's also helpful to note here, most especially for beginners, that this guide applies to 5-volt (3 wire) type neopixel led strips. If you are using an analog 4 wire 12-volt led strip the code given here will not work. The example sketches will run but the LEDs will be extremely faint and almost impossible to see.

Just what I needed thanks heaps!!

I love you and you are the best!!!! Why can’t I meet someone with your energy and knowledge! So cool and nice videos

My brother just graduated as a computer engineer (programmer) and my dad worked for ten years running an electrical power plant (making circuits for light dimmers) so I’m just gonna recruit them :D

Amazingly explained!!

I love your enthusiasm! Thanks for the video, I found it useful. I'm now less afraid to dabble in coding now.

So this was my first time watching a Kamuicosplay video and my initial thought was "Gee she needs to cut back on the caffeine in-take", and I was going to close the window but I'm so glad I stuck through and watched the whole video. Super informative and the cosplay costumes are simply amazing.

This is what I needed! Thanks!

Simply amazing!!!

Just have to say that the top she is wearing is the best! :)

beautiful and smart

Best tutorial video , subscribed

Impressive! Now, to buy the strips!

Just bought this book!

Thank you for another amazing video

you can also use a pushbutton and have it change a variable when pushed, which will also work to switch modes (you should supress (with if) further pressing for like 200ms afterwards though, because buttons usually aren't as binary as one would think (usually the voltage will be unstable for a bit when pressing which can trigger more button presses at once)

Wow that was alot and feel like raging but I always get like that when am trying something that looks hard.This is very informative and I will use this leds in agni and rudra.I usually get thought it.

Really helpful tutorial!!!! Thanks a lot from Belgium. And BTW, really cool dress :p

You are awesome and I am totally buying your books!

I just love your positive vib you have wen you teaching us lol

So in love with this woman!😁😍

Amazing as always!!!

Я только только занялась этим вопросом для новой брони и тут твоё видио, Камуи ты просто Невероятна♥️ ✨Обажаю✨

Definitely gonna ask my boyfriend to translate this talk for me lolol, I understood what it meant but it flew out of my mind as fast as it came in

just an amazing work

I just picked up some USB LED rgb strips yesterday for future projects. I have a light puck that I am using right now. Problem I see is there are specified limits for power supply from the Arduino so at a certain point you have to use a secondary supply and at least some transistors. I modified my light puck to do this and all I had to do was break off 3 pins from the micro and solder the 4 wires to the arduino. I made a video on my channel about it a LED PWM... Practical Upscale.

I am sure my husband would enjoy this and he would say "pff... too easy". He works with huge machines and he can program and fix them hahahah. I however, has been playing with website codes since younger but I didn't enjoy doing it lately. Still, kinda of easy to understand. Thank you very much!

Thanks cool video!

Excellent!

Hey thanks soo much for making this! I really want to make a special keyblade!

I'm going to buy your book. So excited.

Fantabulous!! Thank you!!!

Just want to say you are so talented

I am not into Cosplay at all, but i have an (my first acutally) upcoming DIY project where i want to code some LED stripes to fade between two specific colors and it was described perfectly in this tutorial so thank you Svetlana!

Great tutorial. Love using arduinos. Best way is to mess and have fun as you say! Good guide 😊😊

Woooo new vid love ya kamui cosplay

Hey when are you going to make dog armor (other than fallout) for your corgis and upload that?

What is the diffusing sponge used? The effects are really cool when you spread out the light. Mine are way to centralized where the LED is. Thanks fam!

You uploaded this a few years ago, so you may or may not know about this already, but when you use the switch you can pretty easily add code to the rainbow loops that would interrupt the loops and bail out of the functions. One of the cleanest ways would be to just pass in information about the state of the switch when you enter the function, then at the top of every loop just check if the state of the switch has changed, if so, end the loop.

very useful, thanks

FastLed library has example code in it as do many other libraries. copying an example sketch and then modifying it is a good way to start playing with code to learn

Does the Arduino need to stay connected to the LED strip in order for the programming to work, or does the strip have memory built in?

oh gosh, just what I wanted to watch 😁😁

Where can I buy the dress?