Elektroda.com
Elektroda.com
X
Elektroda.com

[BK7231N] LSC 200 LED Multicolored Smart Lights

gi7mo1 225 9
  • #1
    gi7mo1
    Level 2  
    Teardown of GP-SWXXXDCXXXX(EU)-1C plug
    Internally it has an vertically mounted wifi board with tuya and a BK7231N

    [BK7231N] LSC 200 LED Multicolored Smart Lights










    [BK7231N] LSC 200 LED Multicolored Smart Lights

    You can push the the cover (where the led strip is connected to) pretty easily up to open the electronic compartment

    [BK7231N] LSC 200 LED Multicolored Smart Lights


    [BK7231N] LSC 200 LED Multicolored Smart Lights

    Pull out the pcb by grabbing it with a plier

    [BK7231N] LSC 200 LED Multicolored Smart Lights


    [BK7231N] LSC 200 LED Multicolored Smart Lights

    Was able to flash the chip with
    Code:
    python uartprogram OPENBK...bin -d comX -w -u -s 0x0

    sometimes i had to pull down CEN to get a bus

    when you are getting "WriteSector 1 failed" try another usbttl converter
    with my first one i constantly got the errors

    module configuration is currently unknown, help is appreciated
  • #2
    p.kaczmarek2
    Level 28  
    Hello, I will try to help you, can you please provide some more information what kind of IC is used for this device? Your teardown lacks this crucial information currently. Is it some kind of WS2812b device?
    Is device able to display multiple colors at the same time (on multiple LEDs, of course)?
  • #3
    gi7mo1
    Level 2  
    hey, thanks for your reply

    the ic is the BK7231N or what do you need?

    i made a picture of the wifi/control board during flash
    [BK7231N] LSC 200 LED Multicolored Smart Lights


    on the back are no more components, just some breakout solder points

    as far as i understood this light strip with only one single color (but that you can choose) for all
    but, as i never tried, i can't really tell
    i don't think it's a ws2812* device as comunication is only via +6v and/or -6v
    there are only two connector pins to the strip
  • #4
    leoshusar
    Level 3  
    I found this, it is ESP version, but the rest might be the same
  • #5
    gi7mo1
    Level 2  
    yes, that was the reason why i brought it
    but i was unable to flash tasmota, so i dig deeper
    and that was the result here :-D
  • #6
    p.kaczmarek2
    Level 28  
    This is indeed a useful information. I will look into that tomorrow in detail.

    Are you saying that this device used to be based on ESP8266 (85?), and now is using Beken?
  • #7
    leoshusar
    Level 3  
    It looks like.
    But it would be nothing new, there are many templates for Tasmota which say "this device is now being shipped with Beken MCU".
  • #8
    p.kaczmarek2
    Level 28  
    So you think it's fair to say that there is a trend of migration from ESP to BK?

    Well, don't worry, I got it covered. From what I've seen, it indeed requires a custom driver. I will try to port that one soon. Please wait, let's hope, a day or so... but I am not sure right now how hard can it be.

    By the way, here are further device specs:
    ModelGP-SWXXXDCXXXX(EU)-1C,IP20 SERIES,GP-SWXXXDCXXXX-IP44(EU)-1C,IP44 SERIES
    Physical dimensionL x W x H : 113.5mmx 42mmx42 mm
    Input voltage100-240V~
    Input frequency50-60Hz
    Output voltage3-42VDC
    Output current20-1200mA
    Output Power6W Max
    Special functionOCP,SCP
    HIPOT Testing3000Vac/5mA/Min
    AC pin typeEU
    Mean time between failures50,000 HOURS AT FULL LOAD AND 25C AMBIENT
    Application LED Driver
    Safety certificationEN 61347-2-13:2014+A1:2017;EN 61347-2-11:2001;EN 61347-1:2015;EN 62493:2015
    Safety regulations and Electromagnetic interference standardsEN 55015:2013+A1:2015;EN 61547:2009;EN 61000-3-2:2014;EN 61000-3-3:2013
    Energy efficiency standardsVI
    Protection indexIP20-IP44(Indoor/Outdoor use)
    Burn-in100% Full Load Burn in
    Operating temperature-20~40℃
    8 functions1.COMB 2.IN WAVES 3.SEQUENTIAL 4.SLO-GLO 5.CHASING/FLASH 6.SLOW FADE 7.TWINKLE/FLASH 8.STEADY ON
    TimingPerform free setting for 0-24 hours
    DimmingFour Dimmer:100%、75%、50% 、25%
  • #9
    gi7mo1
    Level 2  
    thanks for helping me out with that
    if you need some help with testing, just give me a ping
  • #10
    leoshusar
    Level 3  
    p.kaczmarek2 wrote:
    So you think it's fair to say that there is a trend of migration from ESP to BK?


    I would say so. Copy and paste this to Google:
    Code:
    "New Tuya devices have replaced their Wi-Fi module with one incompatible with Tasmota" site:templates.blakadder.com


    and it will show around 1020 results (there might me some duplicates).