2 noob questions about WS2811 strings

Discussion in 'RGB Lights - Intelligent Pixels and 3-Channel RGB' started by taintedsaint, Jan 5, 2018.

  1. taintedsaint

    taintedsaint New Elf

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    Received strings from two different suppliers to compare/choose where rest will come from. Both identical in general but one string has three pin (as expected) other has 3 pin AND has an additional two leads coming out of end of each string. Prewired for injection? Anybody?

    Second, controllers haven't arrived yet, have power supply. Can a string be tested just to ensure it works without any type of data or controller?

    Thanks to all.
     
  2. lithgowlights

    lithgowlights Senior Elf

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    The additional 2 leads are just for power. I prefer to just join them to the power line into the string.
     
  3. tooms

    tooms Full Time Elf

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    I dont believe it cant be, you need to generate a data signal at some point, arduino maybe?
     
  4. scamper

    scamper Senior Elf

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    If you apply power without a data signal you will most likely get all leds on white.
    They usually flick white before data is recognised when you turn them on.
     
  5. Gian Piero

    Gian Piero New Elf

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    Guys, I have this type of string with two more threads than the usual three.
    One of the two wires is the masssa that goes connected to the mass of the controller, example Arduino nano as I did for the star that I made this year and one of the two is the signal related to the data ..



    https://drive.google.com/open?id=1zNqJH66IyQNYRBAelgjUrZgFqPGuQUN9
     
  6. AAH

    AAH I love blinky lights :) Community Project Designer

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    It's unusual to see that style of pixel termination. You effectively have 2 bare wires to power the string and 2 wires to supply ground and data. Snip the connector off and use 2 ground, 1 data and 1 5V/12V.
     

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