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Configuring GHome Wi-Led Smart Bulb (WB4) with BK7231N and Easy UART Flasher

ConteDiMoka 246 1
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  • #1 21151240
    ConteDiMoka
    Level 1  
    Hello, I am absolutely new to this. I followed the instructions on YouTube how to flash a Tuya bulb (BK7231N). The device is a GHome Wi-Led Smart Bulb (WB4) that I bought on AliExpress. I removed the chip, flashed it, logged in to the webserver, and put it on my home network. I need some help to configure it (I tried to set PWM on 6,7,8,9, and 24 or 26) but it doesn't work. This is the configuration that I got from Easy UART Flasher:
    Spoiler:
    {
    "Jsonver":"1.0.0",
    "brightmin":"10",
    "gmwb":"75",
    "title20":"0",
    "gmwg":"70",
    "wfcfg":"spcl_auto",
    "colormin":"10",
    "pmemory":"1",
    "gmkb":"60",
    "cmod":"rgbcw",
    "mixway":"0",
    "cwtype":"0",
    "rstbr":"100",
    "colormax":"100",
    "iicw":"3",
    "notdisturb":"0",
    "module":"CB2L",
    "iicsda":"26",
    "cwmaxp":"100",
    "dmod":"6",
    "iicc":"4",
    "brightmax":"100",
    "iicg":"1",
    "wfct":"3",
    "iicr":"2",
    "defbright":"100",
    "rstnum":"3",
    "rstcor":"c",
    "deftemp":"100",
    "bleonoff":"1",
    "iicb":"0",
    "dccur":"55",
    "iicscl":"6",
    "wt":"20",
    "prodagain":"1",
    "remdmode":"0",
    "cagt":"20",
    "drgbcur":"22",
    "co{nc_tp":"0",
    "ssid":"null",
    "passwd":"null",
    "md":"0",
    "wfb64":"1",
    "stat":"0",
    "token":"null",
    "region":"null",
    "reg_key":"null",
    "dns_prio":"0 }{uuid",
    "psk_key":"7pwrXIZvFO4Utj3ZM94Wvv1rsEn4kFmb9k1Ay",
    "auth_key":"MaPEH15VXWKhhim3QewBXVyVAwXKHxR6",
    "ap_ssid":"SmartLife",
    "ap_passwd":"null",
    "country_code":"CN",
    "bt_mac":"null",
    "bt_hid":"null",
    "prod_test":"false",
    "fac_pin":"kesq6hvnmdl5zcq3 }lorpfun",
    "gmwr":"100",
    "rgbt":"10",
    "colormaxp":"100",
    "gmkg":"60",
    "onoffmode":"0",
    "dwcur":"55",
    "rsttemp":"100",
    "category":"0505",
    "gmkr":"80",
    "defcolor":"c",
    "crc":"13"
    }

    Device configuration, as extracted from Tuya:
    - BP5758D_DAT on P26
    - BP5758D_CLK on P6
    - LED remap is 2 1 0 4 3
    Device seems to be using CB2L module, which is using BK7231N.
    And the Tuya section starts, as usual, at 2023424
    I am not very good at soldering so I will probably remove the module and re-install it (just to be sure).

    Thank you,
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  • #2 21151273
    p.kaczmarek2
    Moderator Smart Home
    Hello. This should be easy. You need to set BP5758 pins, as in the text.

    Added after 15 [seconds]:

    No PWMs are used here.
    Helpful post? Buy me a coffee.
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