Action LSC 3202086 Addressable LEDs flashing with OBK for control cloudfree like in Tasmota/Esphome

Question

LSC 3202086 LSC Smart Connect XXL LED strip is a individually addressable (WS2812B-like) LED strip with extra two PWM channels (RGB + CW). It is using BK7231N module, so you can flash it with OBK: You can check our flashing guides for more info on flashing Beken chips: Brandname: LSC Product...

p.kaczmarek2 · Answer

UPDATE: RGB IC + CW PWMs tested and working in simulator:

snakesrules94 · Answer

Hello there !
Do you have success with this led strip ?
I bought one yesterday, did a backup , extract config , but no way to get some light after flashing ...
Here is my extract :


{
   "Jsonver":"1.0.5",
   "brightmin":"10",
   "gmwb":"75",
   "title20":"0",
   "cdtime1":"60",
   "1err":"40",
   "cdtime3":"180",
   "cdtime2":"120",
   "totallen":"1000",
   "gmwg":"70",
   "knum":"1",
   "leaderr":"15",
   "wfcfg":"spcl_auto",
   "colormin":"10",
   "bitseq":"0",
   "pmemory":"1",
   "gmkb":"60",
   "pairt":"180",
   "cmod":"rgbcw",
   "slidemod":"2",
   "micpin":"23",
   "customcode":"00ff",
   "rstbr":"50",
   "ktime":"5",
   "0err":"70",
   "colormax":"100",
   "c_pin":"6",
   "module":"CBU",
   "ctrl_lv":"1",
   "rstmode":"2",
   "irpin":"26",
   "brightmax":"100",
   "sfunc":"1",
   "key_lv":"0",
   "wfct":"3",
   "pwmhz":"1000"
}


Device configuration, as extracted from Tuya: 
- Microphone (TODO) on P23
- LED Cool (Channel 4) on P6
- IR Receiver is on P26
- PWM Frequency 1000
Device seems to be using CBU module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424

p.kaczmarek2 · Answer

So how did you configure the PixelAnim driver? What is your autoexec.bat?

snakesrules94 · Answer

hello,
i didn't start yet to have colour leds. I'm just trying right now to have cool/warm white working. I have no autoexec.bat right now.
BTW, i've also tried the esphome/libretiny port for this led strip and i also have no light at all, no white, no colours.

p.kaczmarek2 · Answer

We need more information and you need to try the RGB. Maybe they have now alternate CW control, where second pin is used to control brightness. Try playing with GPIO Doctor on PWM pins. Make some detailed photos, what is connected where?

snakesrules94 · Answer

I think the game is over for now .. I don't have power any more to the board. I have 24V on input but the board is not powered, thinking something went wrong.
The BK7231N is ok when powered directly from pin but not when powered from the 24V power supply.

p.kaczmarek2 · Answer

Maybe it's just a mechanical damage. Can you check where voltage reaches and where it doesn't? How the step down converter looks like?

Dratii · Answer

Hello, I can relate to the snakesrules94 posts. Code: TextLog in, to see the code and Code: JSONLog in, to see the code and I can't get any LED's to light up

p.kaczmarek2 · Answer

Can you share 2MB Tuya flash dump so I can try flashing it to my device and check the protocol on the scope?

Dratii · Answer

Okay no problem, if I understand correctly it's the file that the BK7231Flasher took as a backup so here it is

p.kaczmarek2 · Answer

Thank you, can you also share some photos of the device inside? Have you tried to run PixelAnim driver, as in the first post? Related guide:

Dratii · Answer

Here are the photos of the insides:

and on the box there is .1 at the end of product code so i guess that means it's a new revision

I didn't run PixelAnim driver because I have no clue what pins are relating to rgb led's and/or CW

p.kaczmarek2 · Answer

We actually know which pin is used for LED RGBs, the ones that are per-pixel addressable. It's always P16, hardware SPI output. That's because hardware SPI is used to control the WS2812 LEDs.

For a start, I'd suggest following PixelAnim/WS2812 topic (linked few posts above) and trying to get some RGB light.

I would also check if 24V is present on LEDs, because some devices might have extra pin used to toggle power on and off for them, sometimes to dim them. Check it with multimeter.
Probably the transistor between 24 in and out is used:

If there is 0V at output of transistor, try setting each pin in GPIODoctor to 1 and observe which enables voltage for the strip. It will be probably one of PWM pins.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.

Dratii · Answer

the 24V on the LED's is present but after using this RGB code in autoexec.bat form PixelAnim thread:

Log in, to see the code

i didn't get any leds to light up and i tried toggling it on and off using the button in the home menu

divadiow · Answer

>>21336881 Code: JSONLog in, to see the code which when put into the importer wholesale give you some bits: that doesn't match the EF extractor though, which you've already posted Code: TextLog in, to see the code I think a more complete template would be with this: Code: JSONLog in, to see the code still, your RGB should be working though I would have thought Added after 6 [minutes]: paired, the 3202086.1 is referred to as LSC Smart Led Strip 1x10m RGBIC + CCT by Tuya

xpeng · Answer

For the people that have the revision of this product (3202086.2), here is my esphome config and the pinout that I figured out.


light:
  - platform: cwww
    id: white_light
    name: "White Light"
    cold_white: output_cw
    warm_white: output_ww
    cold_white_color_temperature: 6500 K
    warm_white_color_temperature: 2700 K
    on_turn_on:
      - light.turn_off: color_light

  - platform: beken_spi_led_strip
    id: color_light
    name: "Color Light"
    pin: P16
    chipset: WS2812
    num_leds: 40
    rgb_order: RBG
    power_supply: led_power
    effects:
     - random:
     - pulse:
     - strobe:
     - flicker:
     - addressable_rainbow:
     - addressable_color_wipe:
     - addressable_scan:
     - addressable_twinkle:
     - addressable_random_twinkle:
     - addressable_fireworks:
     - addressable_flicker:
    on_turn_on:
      - light.turn_off: white_light

output:
  - platform: libretiny_pwm
    id: output_cw
    pin: P9
    power_supply: led_power
  - platform: libretiny_pwm
    id: output_ww
    pin: P24
    power_supply: led_power

power_supply:
    id: led_power
    pin: P6

remote_receiver:
  pin:
    number: P26
    mode:
      input: true
      pullup: true
  dump: all

binary_sensor:
  - platform: gpio
    pin:
      number: P7
      inverted: True
      mode:
        input: True
        pullup: True
    name: "Button"
    on_press:
      - light.toggle: white_light

The power supply config needs a bit adjustment (need to add delay to the led when it starts)

matiserv4 · Answer

For those who has LSC 3202086.1 (i belive it is the same as of @Dratii), i modified config for esphome based on @xpeng config
Here is how it looks


bk72xx:
  board: generic-bk7231n-qfn32-tuya

light:
  - platform: cwww
    id: white_light
    name: "White Light"
    cold_white: output_cw
    warm_white: output_ww
    cold_white_color_temperature: 6500 K
    warm_white_color_temperature: 2700 K
    on_turn_on:
      - light.turn_off: color_light

  - platform: beken_spi_led_strip
    id: color_light
    name: "Color Light"
    pin: P16
    chipset: WS2812
    num_leds: 40
    rgb_order: RBG
    power_supply: led_power
    effects:
     - random:
     - pulse:
     - strobe:
     - flicker:
     - addressable_rainbow:
     - addressable_color_wipe:
     - addressable_scan:
     - addressable_twinkle:
     - addressable_random_twinkle:
     - addressable_fireworks:
     - addressable_flicker:
    on_turn_on:
      - light.turn_off: white_light

output:
  - platform: libretiny_pwm
    id: output_cw
    pin: P6
    power_supply: led_power
  - platform: libretiny_pwm
    id: output_ww
    pin: P24
    power_supply: led_power

power_supply:
    id: led_power
    pin: P22

remote_receiver:
  pin:
    number: P26
    mode:
      input: true
      pullup: true
  dump: all

binary_sensor:
  - platform: gpio
    pin:
      number: P20
      inverted: True
      mode:
        input: True
        pullup: True
    name: "Button"
    on_press:
      - light.toggle: white_light

Action LSC 3202086 Addressable LEDs flashing with OBK for control cloudfree like in Tasmota/Esphome

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