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Thread: random light colors in pixels

  1. #11
    Join Date
    Dec 2014
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    Southern California
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    Default Re: random light colors in pixels

    Yes, pull the 12v and try. When you supply 12v to MEGA, onboard 5v regulator regulates 12v down to 5v. So external 5v ad 12v are redundant.
    Kevin

  2. #12
    Join Date
    Jan 2021
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    Default Re: random light colors in pixels

    thats what i thaught.


    Sent from my SM-N975U using Tapatalk

  3. #13
    Join Date
    May 2015
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    Default Re: random light colors in pixels

    I would start by bench testing your equipment separately using a second light controller and set of LED lights to isolate your issue. Amazon sells several ALITOVE LED Controllers for WS2811 lights for $10-12.

  4. #14
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    Jan 2021
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    Default Re: random light colors in pixels

    Arduinos can run hot when you plug in 12V to them, so be careful. Technically, that's within spec, but don't cheat and try to go higher than 12V, and watch the heat. A small amount of pixels can run off the 5V pin instead of Vin, when you feed the Arduino >6V. The spec says up to 0.8A. But watch the heat again if you approach that limit.

  5. #15
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    Jan 2021
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    Default Re: random light colors in pixels

    so i tryed evey thing with the ground side of things and the power side nothing no fix still some random colors.
    so i am thinking wen i loaded the sketch into the mega 2560 i set the out puts higher then i need example i need 400 pix and i put in the sketch 700 will that have an effect and if i dont patch all the outputs.
    and i do have an inline resistor.

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    Last edited by mr fix; 11-29-2021 at 09:22 PM.

  6. #16
    Join Date
    Oct 2014
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    Sauk City, WI USA
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    Default Re: random light colors in pixels

    Only make the sketch the size of the data you are sending. It takes up buffer space and processing power to do more. Post your sketch when you have a minute.

  7. #17
    Join Date
    Jan 2021
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    Default Re: random light colors in pixels

    What about your gamma correction?

  8. #18
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    Jan 2021
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    Default Re: random light colors in pixels

    so i was looking and i see somthing the mega tree is running mega tree.
    the arduino uno is running 2 white christmas trees.
    so now you know that i run 2 setups the thing i see is that in both light setups is were i have the random colors happing is only on string 1 of both setups the rest of the lights the colors are correct.

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