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[BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store)

dannyx323 594 5
  • LSC Smart Led Light Strip RGBCW bought at Action store in NL at arround €20,-
    Brand: LSC
    Chip: BK7231T
    Module: Chip on pcb
    Article number: 3000342

    TODO: ir-remote and 3 buttons on module




    [BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store)

    Settings with RGB CW without buttons and remote:
    [BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store)

    [BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store) [BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store) [BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store)

    [BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store)

    Cool? Ranking DIY
    About Author
    dannyx323
    Level 2  
    Offline 
    dannyx323 wrote 3 posts with rating 1, helped 0 times. Been with us since 2021 year.
  • #2
    p.kaczmarek2
    Level 28  
    Hello, thank you for determining the pins. The IR receiver is already supported by code, can you try it out? Just set the "IRRecv" role to the correct pin (find out which) and you should see the log info in the console when pressing a remote button.
  • #3
    dannyx323
    Level 2  
    Hi, work in progress i will post the results.
    How can i trace the hardware pin numbers to the software pin numbers in openbeken?

    I guested the pwm with trail and error.
    But the ir and button pins are visible on the pcb.
    But not the working pins in openbeken.
  • #4
    p.kaczmarek2
    Level 28  
    Here is the pinout of BK7231T:
    [BK7231T] - LSC Smart Led Light Strip RGBCW 20W(Action store)
    First pin is marked with dot. You can also take a look where a crystal oscillator is on the board and use it to determine which pin is where.

    Then, you should just follow traces. See where the trace from IR receiver goes.

    Regarding "hardware pin numbers" - OpenBeken is using directly BK pin numbers. So, P9 on my screenshot is P9 in OpenBeken. P26 (PWM5) is P26.... etc. P24 (PWM4) is P24..
  • #5
    dannyx323
    Level 2  
    Had ir kind of working but with the wrong actions and only some were reacting on pin 25
    After updating to version 1.15.36 lost ir calls in the logs.

    The 3 buttons (on pcb) are connected as follow but no reactions in log:
    ButtonS1=pin13 P15
    ButtonS2=pin12 P16
    ButtonS3=pin11 P14
  • #6
    p.kaczmarek2
    Level 28  
    dannyx323 wrote:

    The 3 buttons (on pcb) are connected as follow but no reactions in log:
    ButtonS1=pin13 P15
    ButtonS2=pin12 P16
    ButtonS3=pin11 P14

    On OBK panel, you are supposed to use "P15" etc indexing.

    For your LED driver, you should set:
    - IR Recv
    - set 3 PWM pins, with channels 1, 2 and 3
    - set one button - just a Button, second Button_NextColor, third Button_NextDimmer(channel doesn't matter for them in this case)
    Like in this topic (not yet translated, but you can see photos of configuration):
    https://www.elektroda.pl/rtvforum/topic3932026.html

    IR Recv will not work without configuration. You should be able to see IR codes receiving in log.