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Thread: Configuring Vixen with D1 Mini

  1. #1
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    Default Configuring Vixen with D1 Mini

    Hi
    I hope this makes sense.
    I have a D1 mini board connected to Vixen and it powers up.
    But it's the setting up of the display I'm having issues with.

    These are the lights I'm using DC12V 5M WS2811 LED pixel strip light Rgb Full color 5050 Led strip ribbon flexible Addressable Digital LED tape 1 Ic Control 3

    so it looks like i controller handles 3 nodes so 9 pixels.

    what do I put in the controller channel number? would it be 50? 150? or 450?
    And how many elements.

    Thanks for any input in this.

  2. #2
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    Default Re: Configuring Vixen with D1 Mini

    Those ribbons are set up as three tri-color LEDs per WS2811 chip. That translates to three LEDs per pixel. You did not mention how many LEDs or how many pixels you have on your strip. Most 12v strips come with 150 Tri-Color LEDs per strip so that is 50 pixels / strip.

    That still is not enough information to determine how to configure your controller in Vixen. Are you using a Renard image on the D1? Are you using a modified Pixelstick (aka E1.31)? That information is also needed to answer your request.


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  3. #3
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    Default Re: Configuring Vixen with D1 Mini

    Thanks for the reply. I ended up giving xlights a go and it works great. So I think I'll stick with xlights for now.

    But I'll answer your questions in case someone else needs this info.

    Yes 150pixels 12v strip.
    I'm using a E1.31 code header as below rather than the who code. (I'm thinking of switching to the pixelstick code though)
    * ESP8266_NeoPixel.ino - Simple sketch to listen for E1.31 data on an ESP8266
    * and drive WS2811 LEDs using the NeoPixel Library
    *
    * == Requires Adafruit_NeoPixel - http://github.com/adafruit/Adafruit_NeoPixel
    *
    * Project: E131 - E.131 (sACN) library for Arduino
    * Copyright (c) 2015 Shelby Merrick
    * http://www.forkineye.com

    Thanks

  4. #4
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    Default Re: Configuring Vixen with D1 Mini

    I have used the Pixelstick code on the D1 with no issues.


    2019 - Just moved into a new home (yet another change of plans). Will be dim but not dark. Too much to do at the new place to leave time for a show.
    https://www.youtube.com/channel/UCyX...ttrsZNARkUce0Q

  5. #5
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    Default Re: Configuring Vixen with D1 Mini

    Just an update.
    I've decided to use Xlights with the code above.
    I was planning to run 5 strips from 1 NodeMCU as per the diagram attached. So I'm just checking if I'm on the right track with the hardware, before starting work on the code.
    Any input would be greatly appreciated.
    wiring diagram.png

  6. #6
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    Default Re: Configuring Vixen with D1 Mini

    1) The D1 has little chance of supporting multiple ports. You might get two but not much more. The PixelSticks work because they use the hardware serial port to generate the data stream.

    2) The D1 outputs are 3.3v and have very little drive capability. You should put one of the Pixel buffers right on the D1 output to shift the level to 5v and give the signal a bit more drive.


    2019 - Just moved into a new home (yet another change of plans). Will be dim but not dark. Too much to do at the new place to leave time for a show.
    https://www.youtube.com/channel/UCyX...ttrsZNARkUce0Q

  7. #7
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    Default Re: Configuring Vixen with D1 Mini

    Thanks. What's a pixel buffer?
    Do you mean a level shifter?
    Last edited by nzchristmas.nz; 07-07-2019 at 08:49 PM.

  8. #8
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    Default Re: Configuring Vixen with D1 Mini

    look up 'null pixel without a pixel' for an example. i used one connected to a d1 to drive a string. no noise problems after adding it.


    2019 - Just moved into a new home (yet another change of plans). Will be dim but not dark. Too much to do at the new place to leave time for a show.
    https://www.youtube.com/channel/UCyX...ttrsZNARkUce0Q

  9. #9
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    Default Re: Configuring Vixen with D1 Mini

    Quote Originally Posted by MartinMueller2003 View Post
    1) ........

    2) The D1 outputs are 3.3v and have very little drive capability. You should put one of the Pixel buffers right on the D1 output to shift the level to 5v and give the signal a bit more drive.
    Isnít the ESP-1 in the ESPixelStick a 3.3v device
    In Lights Therapy

  10. #10
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    Default Re: Configuring Vixen with D1 Mini

    Quote Originally Posted by mrGrumpy View Post
    Isn’t the ESP-1 in the ESPixelStick a 3.3v device
    The ESPixelStick uses a M74VHC1GT125DT1G as a level shifter.

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