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FastLED / FastLED

The FastLED library for colored LED animation on Arduino. Please direct questions/requests for help to the FastLED Reddit community: http://fastled.io/r We'd like to use github "issues" just for tracking library bugs / enhancements.
http://fastled.io
MIT License
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New WorldStar WS2812B strips #472

Closed elliottkember closed 5 years ago

elliottkember commented 7 years ago

New WS2812B strips are dropping. Annoyingly they're still labeled as WS2812B but they don't light up with the current version of FastLED I'm using. There's a small visible difference in the shape of the controller IC which was rectangular and is now square:

https://blog.adafruit.com/2017/05/03/psa-the-ws2812b-rgb-led-has-been-revised-will-require-code-tweak/ https://blog.particle.io/2017/05/11/ws2812b-neopixels-are-about-to-change/

Adafruit library has been patched here: https://github.com/adafruit/Adafruit_NeoPixel/commit/ec1614ad8f8ce54f5928cfa1e08e6e7b3b958faf something to do with changing a 50ms wait time to 300ms.

It seems as though we can change this and have the code work with both versions(?) and I'm happy to try it with the strip I have here but I have no idea where to change it. Any help would be appreciated!!

jasoncoon commented 7 years ago

Related converstations:

elliottkember commented 7 years ago

Thanks Jason! I should clarify that my strips don't light up or flicker at all, they just stay black. I doubt it's a faulty strip but I wouldn't rule that out.

Philxu007 commented 7 years ago

wow, ws2812b is going to the same layout as the sk6812 led

Varjohaltia commented 7 years ago

I just bought some Adafruit 16 LED Neopixel rings (Product ID: 1463) and they don't work right. They light up, but the colors are weird and the demoreel demos basically leave them on at almost white. The fading doesn't work at all. Swapping in the current Adafruit demo sketch works fine, so it doesn't appear to be my hardware. Sounds like a similar issue.

Helpfully Adafruit says "May ship with either WS2812B or SK6812-based LEDs. They are the same brightness, color and protocol." I haven't been able to tell which I have.

Side-by-side images, my apologies for the atrocious quality. Adafruit neopixel library on top, FastLED below.

img_20170804_162910 img_20170804_162843