RPi3+WS2812b+Hyperion=random colors

  • Hi,


    I've got following hardware setup:


    - RPi 3 B+ (running with Raspbian Stretch lite)
    - WS2812b
    - video grabber UTV007 (via tv SCART out)


    Testing stripes via Python script (strandtest.py using the rpi_281x library): very well!
    - color wipes: ok
    - theater chase: ok
    - rainbow cycle: ok


    Running with hyperion: bad - random colors :(


    Grabber seems to be ok: random colors do respond to picture on tv somehow
    - random colors do change, when scene on tv is changing
    - black areas cause leds in corresponding area to be black


    So, there must be something wrong with hyperion software or its driver using.


    Any idea, what's wrong?


    See my hyperion.config.json:



    My config.txt:

  • I'm confused about what you're referring to when you say "random colors"


    I'm not sure about the WS2812b, but I see that you have your color order as "GRB"


    Is how it's supposed to be?


    I use this video:

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    to calibrate the color order. After doing so, I found out that my green and blue lights were swapped, so I changed my color order to "RBG" and it works fine.

  • My TV won't put the signal from chromecast to scart out so I can't test this. It will take some time until I get to manage this. (BTW. Anyone an idea if there's a way to teach a Sony TV to put signal from hdmi, amazon or Netflix to scart?

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