# WLED with FCOB RGBIC LED STRIP WS2812b **URL:** \ **Category:** Uncategorized\ **Created:** [December 7, 2024, 2:17pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523 "2024-12-07T14:17:57Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 7, 2024, 2:17pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/1 "2024-12-07T14:17:57Z")
Hi, I replaced a 5 meter WS2812b LED strip with 30 leds/meter with a FCOB RGBIC LED STRIP ws2812b with 720 leds/meter and it doesn’t work. my equipment is: - FCOB RGBIC LED STRIP ws2812b ( [https://fr.aliexpress.com/item/1005005047242165.html?spm=a2g0o.order\_list.order\_list\_main.29.526c5e5bjEETtQ&gatewayAdapt=glo2fra#nav-specification](https://fr.aliexpress.com/item/1005005047242165.html?spm=a2g0o.order_list.order_list_main.29.526c5e5bjEETtQ&gatewayAdapt=glo2fra#nav-specification) ) - FCOB LED Light Power Supply 24v - ESP32-WROOM-32S 32D ( [https://fr.aliexpress.com/item/1005006456519790.html?spm=a2g0o.order\_list.order\_list\_main.46.6ccb5e5bP431Mo&gatewayAdapt=glo2fra](https://fr.aliexpress.com/item/1005006456519790.html?spm=a2g0o.order_list.order_list_main.46.6ccb5e5bP431Mo&gatewayAdapt=glo2fra) ) With the WS2812b 5-meter LED strip with 30 led/meter everything works. Did I forget to do something? Thanks ![IMG_5326](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/a/a70b2641fa6671904033f4ecf1199b2bff255042.jpeg) ---
**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\ **Post date:** [December 7, 2024, 4:21pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/2 "2024-12-07T16:21:39Z")
You will likely need a levelshifter. ---
**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://wled.discourse.group/u/Jinx)\ **Post date:** [December 7, 2024, 9:21pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/3 "2024-12-07T21:21:29Z")
> [@divsys](#): > > You will likely need a levelshifter. I 2nd this^^ ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 8, 2024, 1:07pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/4 "2024-12-08T13:07:35Z")
Thanks for your answer, I’ll try it with a level shifter. ---
**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\ **Post date:** [December 8, 2024, 3:42pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/5 "2024-12-08T15:42:22Z")
One further note, how are you powering the ESP? If you’re using a separate 5V supply (or USB), remember to connect a ground line from the ESP to the LEDs so you have common ground for data (independent of power). This is in addition to the proper levelshifter (don’t try and use I2C type), 74AHCTxxx based devices are best practice. ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 8, 2024, 5:54pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/6 "2024-12-08T17:54:51Z")
Ok, I’m a novice, do you have a wiring diagram? Thanks for your help ---
**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://wled.discourse.group/u/Jinx)\ **Post date:** [December 9, 2024, 2:20am UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/7 "2024-12-09T02:20:03Z")
[https://kno.wled.ge/basics/compatible-hardware/#levelshifters](https://kno.wled.ge/basics/compatible-hardware/#levelshifters) scroll down a tiny bit. ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 9, 2024, 8:09am UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/8 "2024-12-09T08:09:21Z")
Thank you, is this schematic correct? The schematic you linked to me has all the ports connected, is this necessary? Thanks again for your help, thanks to you I hope to realize my project. 13 meters of FCOB 24v LEDs in aluminum profiles diffuser. ![2](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/b/be4b7d08d8a4714e39c60065d6f231078c383ce4.jpeg) ---
**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://wled.discourse.group/u/Jinx)\ **Post date:** [December 9, 2024, 9:18am UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/9 "2024-12-09T09:18:28Z")
That image is correct for how to connect an input/output, however it it lacking what you should do with the unused channels. This would be the correct wiring for only using 1 channel of the shifter: ![](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/0/035e6d5adc4931d4a18c4650a3013f0492ce113f.jpeg) This shows using 2 channels: ![](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/d/d3f93c4c69626ee3b36196685ec0d7899c0d8454.jpeg) - I would put that 100nF (.1uF) ceramic bypass capacitor up at the top close to vcc. It also makes it easy to connect to ground (1OE) Example: ![20241015_192550](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/7/736222d5bc54d79a8ca2dd6819642a2d2451f367.jpeg) \*don’t worry about the resistor. It is likely unneeded. If you are running 3 conductor wire with +,-,d in one and are running at longer distances and have white flickers now n there I would try adding a 33Ω resistor. ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 9, 2024, 9:31am UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/10 "2024-12-09T09:31:46Z")
Is it absolutely necessary to connect all the channels? Is it absolutely necessary to connect the capacitor? sorry for these questions, I want to make sure I’m doing the right thing. ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 9, 2024, 10:20am UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/11 "2024-12-09T10:20:01Z")
I’ve made a diagram of the installation I want to make, is it correct? ![led_projet](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/f/fc8cf0ddb6e2567ac18bd9e36eb7e18557853307.jpeg) ---
**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\ **Post date:** [December 9, 2024, 12:05pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/12 "2024-12-09T12:05:00Z")
You’re very close, but you still need: - 100nF capacitor from pin14 to ground (place close to pin 14). - Tie pins 9,10,12,13 to ground or Vcc. The capacitor prevents switching noise from adding flicker to the data. If the extra pins are left “floating” they can cause also flicker in your LED data (you can ignore 8,11). ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 9, 2024, 12:57pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/13 "2024-12-09T12:57:05Z")
Like this? ![led_projet](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/c/c0ab23ebbcbd35c4a14f47fdf1ea14618cb2cfb3.jpeg) ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 9, 2024, 3:36pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/14 "2024-12-09T15:36:10Z")
Are these capacitors any good? ![Capture d’écran 2024-12-09 163948](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/f/fde77d17b4857bbd905d377c81d7e98909665e84.jpeg) ![Capture d’écran 2024-12-09 163519](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/8/821b8fb62355c4e88b05e46401c7a49152814c3b.jpeg) Thank you. ---
**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\ **Post date:** [December 9, 2024, 4:30pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/15 "2024-12-09T16:30:35Z")
That wiring will work and either of those capacitors should be fine. ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 9, 2024, 4:35pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/16 "2024-12-09T16:35:25Z")
Thank you very much for your answers and your time. I will be testing this weekend and will get back to you. 😀 ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 10, 2024, 2:51pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/17 "2024-12-10T14:51:26Z")
Hello, I have received the capacitors, is there a wiring direction? ![IMG_5331](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/d/d6baf3fbd6351db6b1c570eaf642f1b5ea0a6a53.jpeg) ---
**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\ **Post date:** [December 10, 2024, 2:54pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/18 "2024-12-10T14:54:31Z")
No, those types of capacitors can go either way, they’re not polarized. ---
**Author:** ![Doriginal](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/doriginal/32/8947_2.png) [@Doriginal](https://wled.discourse.group/u/Doriginal)\ **Post date:** [December 10, 2024, 6:31pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/19 "2024-12-10T18:31:44Z")
Good evening, just a question about my last diagram. Is the ground of the LEDs connected to ESP32 not a problem since the positive of the LEDs is connected to the 24V of the power supply? Thanks ---
**Author:** ![divsys](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@divsys](https://wled.discourse.group/u/divsys)\ **Post date:** [December 10, 2024, 7:13pm UTC](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523/20 "2024-12-10T19:13:25Z")
Connecting the ground lines together is not a problem (in fact it’s required). Often the best way to do that for the data connection is to run a smaller data and ground wire together directly from the ESP to the strip, independent of the power wires that run to the power supply to the strip. [Next page](https://wled.discourse.group/t/wled-with-fcob-rgbic-led-strip-ws2812b/13523.md?page=2)