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LSC Smart Outdoor Party Light (3200490) Color Sync Issue with WS2814A and SM1670P

marcolueck1976 2610 8
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  • #1 21139484
    marcolueck1976
    Level 8  
    Here we go again.
    A few weeks ago I bought an LSC Smart Outdoor Party Light (3200490) that works with LSC or Tuya.
    It has 20 Bulbs, RGB/C + warm white.
    Colorful bulbs of the LSC Smart Outdoor Party Light set on packaging.
    Printed circuit board with connectors and electronic components inside a casing.

    Flashing was no Problem. But if I toggle on all LEDs have different colors. If I change to blue this is the result, one G, one R, one B and so on. That confuses me, normally all LED should have the same color.

    String lights with multicolored LED bulbs hanging above a cabinet.

    Every bulb has one small chip with WS2814A

    Electronic module with LED setup and markings. Circuit board with WS2814A chip and wires

    The string works with SM1670P driver for RGB but CW and WW won't work

    Code: JSON
    Log in, to see the code

    PixelAnim works, but the LEDs are mixed up and there is no clean rainbow effect.

    I'm sorry, but I forgot to make a dump :-(

    Somebody out there who has the same String and bring it fully to work?
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  • #2 21140009
    p.kaczmarek2
    Moderator Smart Home  
    Hello, are WS2814A timings the same as WS2812B?
    Technical datasheet for WS2814A with specifications and transmission timings.
    Comparison of data transfer times for WS2812/WS2812S and WS2812B.
    They look different, futhermore, it seems they have one mistake in the datasheet... hm. Maybe we need to adjust the driver.
    Helpful post? Buy me a coffee.
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  • #4 21140152
    p.kaczmarek2
    Moderator Smart Home  
    It still seems that there is an error in the datasheet:
    Data sheet showing a data transfer time table with a potential error.
    Helpful post? Buy me a coffee.
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  • #5 21141939
    marcolueck1976
    Level 8  
    I've tried today to use the string with an ESP32 and WLED, with the settings WS2812 it works as I describe above, with setting WS2814 it works completely normally and the bulbs have all the same color.
  • #6 21141949
    p.kaczmarek2
    Moderator Smart Home  
    So basically you've confirmed that OBK supports WS2812 but WS2814 is not supported?
    Helpful post? Buy me a coffee.
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  • #7 21141956
    marcolueck1976
    Level 8  


    A string of lights with red and green pepper-shaped bulbs. I think i could say that, yes.
  • #8 21448270
    pitron
    Level 24  
    I have these LSC bulbs but wifi is broken: loosing connectivity.
    Has anyone tried to use with esp and wled last versions?
  • #9 21615709
    slo2
    Level 1  
    I also got myself 2 of these string and I got them working by enhancing OpenBeken.
    At the time of writing this pull request is still open: https://github.com/openshwprojects/OpenBK7231T_App/pull/1736

    I seem to have a newer version than the original post. Mine has 5 channels RGB CCT. This is my configuration:

    Code: text Expand Select all Copy to clipboard
    {
    "vendor": "LSC",
    "bDetailed": "0",
    "name": "Smart OUTDOOR PARTY LIGHTS",
    "model": "outdoor party lights",
    "chip": "BK7231N",
    "board": "CBU",
    "flags": "134217744",
    "pins": {
        "16": "SM16703P_DIN;0"
    },
    "command": "backlog startDriver SM16703P; SM16703P_Init 15 RGBWC"
}


    For 4 channels try
    Code: text Expand Select all Copy to clipboard
    backlog startDriver SM16703P; SM16703P_Init 15 RGBW
    or
    Code: text Expand Select all Copy to clipboard
    backlog startDriver SM16703P; SM16703P_Init 15 RGBC
    as start-up command instead.

    LSC Smart Outdoor Party Light (3200490) Color Sync Issue with WS2814A and SM1670P LSC Smart Outdoor Party Light (3200490) Color Sync Issue with WS2814A and SM1670P
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Topic summary

The LSC Smart Outdoor Party Light (3200490) features 20 RGB/C + warm white bulbs each controlled by a WS2814A chip. When controlled via the SM1670P driver, RGB colors display but cold white (CW) and warm white (WW) channels do not function properly, and LED colors are inconsistent across the string. Investigation revealed discrepancies in the WS2814A datasheet, including timing differences compared to WS2812B LEDs and possible errors. Using an ESP32 with WLED firmware, setting the LED type to WS2812 results in mixed colors, while selecting WS2814 produces uniform colors across all bulbs, indicating better compatibility. However, official support for WS2814 in some drivers like OBK appears limited or absent. Additional user reports mention Wi-Fi connectivity issues with these LSC bulbs when used with ESP and recent WLED versions.
Summary generated by the language model.
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