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Thread: LED color change even in pause (Vixen)

  1. #41
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    Default Re: LED color change even in pause (Vixen)

    Hi gb70 just a F.Y.I . on the code I posted for 12 universes .

    The NeoPixelBus<NeoGrbFeature, NeoEsp32BitBang800KbpsMethod> is to unstable for use .

    The NeoPixelBus<NeoGrbFeature, NeoEsp32Rmt0800KbpsMethod> You may find issues here also if using more than 3 - 5 outputs .
    I have not used this in some time but recall Michael Makuna < the creator of the NEO Pixel Bus Library > saying there was a known bug
    that espressif had not solved .

  2. #42
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    Default Re: LED color change even in pause (Vixen)

    Thank you ... @angus40
    The NeoPixelBus<NeoGrbFeature, NeoEsp32BitBang800KbpsMethod> is to unstable for use
    tomorrow I will still do the test to connect the ethernet cable to the mini trees with the "null pixel" and join the two gnd of the ESP32.

    possibly do you have any advice for a program to use with 10 outputs?

    Thank you

  3. #43
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    Default Re: LED color change even in pause (Vixen)

    Quote Originally Posted by gb70 View Post
    Thank you ... @angus40


    tomorrow I will still do the test to connect the ethernet cable to the mini trees with the "null pixel" and join the two gnd of the ESP32.

    possibly do you have any advice for a program to use with 10 outputs?

    Thank you
    To be honest , the esp codes I posted were just experiment tests to prove it can work .
    I have switched to using WLED for the most part .

    You would likely be better off using fewer outputs and daisy chain pixels as MikeKrebs suggested.

  4. #44
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    Default Re: LED color change even in pause (Vixen)

    ok,
    angus40

    tomorrow I will do last tests
    if they're not stable, I'll do it, as MikeKrebs said, daisy-chain (I would do two output of 500 leds).

    it would be the first time I would make the daisy;
    I understood that you have to connect more strings with the same positive, negative and data; but the ends of each string remain free?
    End on vixen can I manage with the grids?


    Thanks again

  5. #45
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    Default Re: LED color change even in pause (Vixen)

    Quote Originally Posted by gb70 View Post
    ok,
    angus40

    tomorrow I will do last tests
    if they're not stable, I'll do it, as MikeKrebs said, daisy-chain (I would do two output of 500 leds).

    it would be the first time I would make the daisy;
    I understood that you have to connect more strings with the same positive, negative and data; but the ends of each string remain free?
    End on vixen can I manage with the grids?


    Thanks again
    Yes . gnd and data from the controller & V+ and V- from the power supply to the string of 500 pixels.

    You will need to inject V+ and V- within the 500 pixel daisy chain ( at several points to maintain voltage ).

    Someone with Vixen experience will need to answer about grids .

  6. #46
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    Default Re: LED color change even in pause (Vixen)

    exhausted the tests.
    The only one that remains stable enough is with an ESP32 for 5 GPIO (tot 2 ESP32 for 10 GPIO).
    https://www.dropbox.com/s/icoc6z5ong...ESP32.jpg?dl=0

    It is not yet the top but better than before.
    tested pulse white:
    https://www.dropbox.com/s/pe6jkc7n5k...white.mp4?dl=0

    with static colors some problems ... with white better ... I guess you just need to feed V + and V- well at the end of the strings:
    https://www.dropbox.com/s/0aus2c67nx...tatic.mp4?dl=0

    Here I have no more options and close the post.
    Having no bases I will open another post for the daisy-chain.

    thanks

  7. #47
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    Default Re: LED color change even in pause (Vixen)

    There is many more options here .

    Look at the diagram here => https://github.com/Aircoookie/WLED/wiki

    A level shifter is used and recommended . You will notice a 1000 uf capacitor across V+ and V-
    also a series resistor on the data line .

    What I notice in your video is random flicker and latency .
    The circuit shown in the link above will help cure the flicker , the latency is either your WiFi - PC or both .

    Also , depending on your Esp32 mfg there is prefereced gpio.

    Lastly , I would either install the latest Espixelstick firmware or WLED and run the onboard effects while testing .

    Build up your daisy chain 1 string with power injection( every 25 pixels) at a time and test each as you go . This way you know exactly where issues are as they arise .
    Last edited by angus40; 08-22-2021 at 05:59 PM.

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