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New WorldStar WS2812B strips #472

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elliottkember opened this Issue Jul 21, 2017 · 4 comments

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elliottkember commented Jul 21, 2017

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: adafruit/Adafruit_NeoPixel@ec1614a 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!!

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jasoncoon commented Jul 21, 2017

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elliottkember Jul 21, 2017

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.

elliottkember commented Jul 21, 2017

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.

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Philxu007 Aug 3, 2017

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

Philxu007 commented Aug 3, 2017

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

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Varjohaltia Aug 4, 2017

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

Varjohaltia commented Aug 4, 2017

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

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