Wiring considerations for WS2812B RGB LEDs
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- เผยแพร่เมื่อ 6 พ.ย. 2017
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I have a project coming up that uses WS2812B RGB LEDs. So before we get into that, I thought we should look at the wiring considerations for these devices. Adafruit has an excellent guide on their site that goes over it as well.
Adafruit Neopixel Guide: goo.gl/NM2iWL
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Came here looking for an example of how to solder the WS2812B when they're attached to PCB. Thanks for the basic intro! I appreciate it.
The video was a little longer than I was looking for, but once I clicked on it I realized that the content was quite good and worth every minute of my time. Very informative and clear. Please keep up the good work!
Wow, thank you so much!
The resistor and capacitor made all the difference. Thank you!
I've watched loads of videos about this and they all skip over the bit about how and why the wires need to be done this way. I'd assumed I could just clip the strip to the Arduino. This is the only useful video on the subject I have seen 👍👌👍
Thanks! Didn't know about those Ada fruit sheets, that's a great resource.
No I did not know all that. I have only used the RGBs with the common cathode 3 anodes. Did not even know these existed. Went out and ordered 10. Looks really fun to play with.
Oh bless you! I'm a Noob and am about to solder my first project it's these ws2812b i wanted to create an light panel and i couldn't find suitable advise on the techs. Thank you a lot you made my project make possible
watch my channle in a year if i be ready i 'll make a video for you
Learned a couple things... Subbed...
That's for making this video. I needed that
I didn't know all that lol. Just learning about neopixal and this was a great help!
nice video very informative, for newbie like me. im still waiting on my LEDs and supplies to arrive to begin making stuff. my first time working with arduino, soldering, and LEDs. i ordered bare ws2812b SMD LEDs from aliexpress and i want to connect them together like yours since i wont be using the strip ones/ones with pcb. what kind bare wire is that you are using to connect the LEDs together? is it just aluminum wire if so what gauge is it? does home depot or lowes sell them?
Thanks for the comment at 7:03 because i feel thats a bit of a problem in the maker/hacker/fablab community. Don't scare off newbies, everyone has to start somewhere, be kind and helpful, not braggy and arrogant. Great Video, thanks a lot!
Glad to help
Nice 3d print job!!
+Michael Padovani Thanks, I am really enjoying 3d printing different things.
How are things going for you and yours?
Going well, thanks for asking! Baby Gianna had her 2 week doc appointment today. Just trying to keep up with the feedings (which have become more numerous over the past few days)...every 1-2 hours prob, which is tough at night. My job is to support the wife and take care of our handicap pug. Done a lot of cooking while i'm off from work (go back next Mon). I'm very blessed.
Thank you for the video! Looking at the straight 6 neopixel board there appears to be either a capacitor or resistor between each LED. Do you know what and why those are there?
That is really cool.
Very helpfull video. Thanks. Where do you get wire like that. Just solid wire stripped?
Helpful thanks
Can you make a tutorial on how to connect the WS2812B (4 pins) LED Chip 5050 RGB SMD, the one with only 4 pins?
Question sir love the content for 1 and my question is can u make these 5050 smd rgbic switch back sequential white to yellow turning and back to w.e setting it was on before changing .. trying to do all on same stripe like rgb and then turn white for drl and then yellow turn ..
yeah broh i dont know this stuff really thanks sir!
Greetings, the ring looks like it has a resistor between every led and not just the first data line on the first pixel, is there a reason for this?
Thanks for sharing. I want to use it for 3 relays. For example, if 1st relay is on, first LED must glow. How do I program? Please note that I have never used WS2812 before. Also kindly suggest Capacitor and resistor. I want to connect it with Nodemcu.
...direct in 5V (smartphone charger), is possible? Tks!
ai really like your UNO breadboard holder that's some electronics bling! I haven't had a neopixel yet but I have a couple of strings of RGB LEDs are they the same thing?
+George Chambers probably not. WS2812B or Neopixels have an internal IC and specific protocols
That's what I figured.
I hope I get reply being video is 4 years old. On ws2812 there is 3 wires and two additional wires ground power. Can I hook these up to brake light wire and keep the main 3 for arduino nano to send data to leds to flash?
hey man! nice video! which wire gauge should be used if you want to cut the LED's from a strip and connect them together again? Will 22 AWG suffice? I would like to use 300 LED's in total, so total power consumption is 60mAx300=18W at 5V, so I would at least need a 4A power supply.
+Mert Capkin I use 22 awg solid for just about everything up to 5 amps. You should be fine.
I have made some typos with my question. It should be 60mAx300=18A at 5V = 90W.. if I use 144 LEDs for a 12x12 matrix, is 22AWG also okay then for connecting each individual LED to one another? I would need a 50W power supply then, so 10A at 5V.
+Mert Capkin 10A you may want to to go 20awg to 18awg
ok, thanks! :)
Do you need to put the number of pixel on the string into the code so it knows when it reaches the end of the sequence? I assume you do but just thought I'd ask!
+gartmorn Yes you do. In the Adafruit neopixel library you specify the number of pixels and the pin they are connected to.
Beginner non-electrical engineer Question: I want to design my own LED circuit with just the WS2812B RGB LEDs. Not ones that are already on a pcb but loose ones so I can make my own very compact pcba design layout. When looking at the Adafruit neopixel 12 LED schematic it shows five 1uF capacitors across the +/- but not where they go. Does it mater and does that size cap change with more LEDs or does the qty mater and what are they there for? My board will have around 24 LEDs and just want it to last a long time. Thank you!
They are decoupling caps. They go between VCC & GND and help capture stray signals. I would use what they reccomend.
@@learnelectronics Thank you for your reply!
can you help me, why doesn't this LED light up when I connect it directly to power (3V-5V)? unlike the strip version that I can usually check directly using a 3v battery and lights up, and it happens to all the individual LEDs that I have.
wS2812b LEDs require a signal along with power
@@learnelectronics in your opinion what is the most appropriate capacitor voltage for this led? Is 1000μF 10V volts enough?
Why do we add a 1000uf capacitor there!??
so the voltage does not drop too far
Wow !! Don't get me wrong I enjoyed the video but I was distracted by your breadboard holder. Will you sell one? Great Job!!
+Richard Fosse Thank you, I don't sell things, but if you want one and want to pay the shipping, I'll make you one.
Just let me know the amount..np & thanks
+Richard Fosse email me your address at arduino0169@gmail.com