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LSC Smart Digital Led Strip (2x5m LED RGBCW)

Bacto 141 6
  • #1
    Bacto
    Level 3  
    Hi,

    I'm starting to work on the "LSC Smart Digital Led Strip" which is a dual led RGBCW strip.

    LSC Smart Digital Led Strip (2x5m LED RGBCW)

    On the board we have:
    - a BK7231N
    - a button (P7)
    - a microphone (ADC on P23)
    - an IR receiver (digital on P26)

    LSC Smart Digital Led Strip (2x5m LED RGBCW)



    It controls 2 rubans plugged in parallel with:
    - CC leds (PWM on P24)
    - CW leds (PWM on P9)
    - RGB leds
    - Mutiple SM16703P chipsets, each controlling 6 RGB plugged in parallel
    - SM16703P chipsets are plugged in serial and controled by P16

    LSC Smart Digital Led Strip (2x5m LED RGBCW)

    The rubans have 5 pins:
    - Green: GND
    - White: VCC (24V) controled by P6
    - Blue: digital RGB (see below)
    - Black: CC leds
    - Red: CW leds

    The button, microphone, IR receiver, CC and CW leds are easy to use, as usual, with OpenBeken.

    The RGB leds are problematic for now as SM16703P chipsets are not yet supported by OpenBeken.
    See https://github.com/openshwprojects/OpenBK7231T_App/issues/176

    The SM16703P datasheet can be found here: https://www.gree-leds.com/web/userfiles/download/SM16703ICdatasheet.pdf

    Adrien
  • #2
    p.kaczmarek2
    Level 28  
    Hello, that's a very interesting device. I have never seen a double RGB strip before.

    I haven't looked at the datasheets yet, but are the timings of SM16703P the same as WS2812?

    I might have some WS2812 around, so I could get a driver up to speed relatively quickly.
  • #3
    Bacto
    Level 3  
    I have no idea about the timings as I've never worked directly with WS2812 :-/
  • #5
    Bacto
    Level 3  
    I'm super motivated to do some tests :)
  • #6
    p.kaczmarek2
    Level 28  
    We've done some prelimary attempts at the driver, but there is still one issue holding the progress up. Once done, we will get drivers for that chip and for all similar chips (WS2812b etc) quickly.
  • #7
    Bacto
    Level 3  
    Awesome!
    Let me know and I'll test it ASAP :)