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[BK7231N/CBLC5] Difference Between WiFi and Bluetooth Versions of GU10 Tuya RGBCW Bulb [BP5758D]?

insmod 1308 4
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  • Main board designation: SY-GU10-5L-WIFI-BL
    LED board designation: XB-05257
    LED board with RGB and CW markings and multiple LEDs of different colors. Electronic module with several components on a green circuit board. SY-GU10-5L-WIFI-BL board with wires.

    I was really surprised to receive this bulb with a WiFi module, instead of a bluetooth one (and i ordered the bluetooth version specifically).

    The only difference between them, as far as i have seen, is that WiFi version use short bare wires, whereas bluetooth one is using long, insulated ones.
    (Which is the reason the board is damaged, it was a lot harder to remove it from the housing)

    Tuya config:
    Code: text Expand Select all Copy to clipboard
    {
   "Jsonver":"1.1.9",
   "brightmin":"10",
   "gmwb":"75",
   "title20":"0",
   "gmwg":"70",
   "wfcfg":"spcl_auto",
   "colormin":"10",
   "pmemory":"1",
   "gmkb":"60",
   "pairt":"18",
   "cmod":"rgbcw",
   "mixway":"0",
   "cwtype":"0",
   "rstbr":"50",
   "colormax":"100",
   "iicw":"3",
   "notdisturb":"0",
   "module":"CBLC5",
   "iicsda":"26",
   "cwmaxp":"100",
   "dmod":"6",
   "iicc":"4",
   "brightmax":"100",
   "iicg":"1",
   "wfct":"3",
   "iicr":"2",
   "defbright":"100",
   "rstnum":"5",
   "rstcor":"c",
   "deftemp":"100",
   "bleonoff":"1",
   "iicb":"0",
   "dccur":"33",
   "iicscl":"24",
   "wt":"20",
   "prodagain":"0",
   "remdmode":"1",
   "cagt":"20",
   "drgbcur":"10",
   "colorpfun":"0",
   "gmwr":"100",
   "rgbt":"10",
   "gmkg":"60",
   "onoffmode":"0",
   "dwcur":"33",
   "rsttemp":"100",
   "category":"0505",
   "gmkr":"80",
   "defcolor":"c",
   "crc":"122"
}

    Code: text Expand Select all Copy to clipboard
    Device configuration, as extracted from Tuya: 
- BP5758D_DAT on P26
- BP5758D_CLK on P24
- LED remap is 2 1 0 4 3
Device seems to be using CBLC5 module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424

    I wouldn't recommend using it on stock firmware.
    CW current from config is 33mA, which is really high.
    Even on GX53 i only got 24mA in tuya config, and on the modded bluetooth ones i set to 8mA.
    Attachments:

    Cool? Ranking DIY
    About Author
    insmod
    Level 26  
    Offline 
    insmod wrote 687 posts with rating 229, helped 94 times. Been with us since 2024 year.
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  • #2 21262691
    p.kaczmarek2
    Moderator Smart Home  
    Interesting, was it marked as Bluetooth-only or Bluetooth AND WiFi? CBLC5 has both BT and WiFi. Theoretically they could use CBLC5 as Bluetooth only device as well, but I don't think it would be worth it, BT-only chips are cheaper... probably just a labelling mistake on seller's side.

    Btw, if you can, post also a full template in JSON format, so we can add it here: https://openbekeniot.github.io/webapp/devicesList.html
    Helpful post? Buy me a coffee.
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  • #3 21262751
    insmod
    Level 26  
    Can't properly verify this template - this was the only available bulb for esp32-c2 testing, so i replaced the main module with wroom-07 one.
    Wifi version was probably sent by mistake - those that i have previously had AK801 modules.
    No proper image, but then the bulb itself has no markings at all.
    Code: text Expand Select all Copy to clipboard
    {
  "vendor": "Tuya",
  "bDetailed": "0",
  "name": "GU10 RGBCW Bulb",
  "model": "Generic",
  "chip": "BK7231N",
  "board": "CBLC5",
  "flags": "1024",
  "keywords": [
    "BP5758D"
  ],
  "pins": {
    "24": "BP5758D_DAT;0",
    "26": "BP5758D_CLK;0"
  },
  "command": "",
  "image": "https://obrazki.elektroda.pl/9381372400_1727897601.jpg",
  "wiki": "https://www.elektroda.com/rtvforum/topic4078913.html"
}
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  • #4 21269238
    insmod
    Level 26  
    Another bluetooth version arrived, this time it was bluetooth only with long wires, as expected.
    Newer board revision, marked as V2, SDA/SCL pins are also named.
    Spoiler:

    Electronic board with visible LEDs and markings. Circuit board labeled SY-GU10-5L-WIFI-BL V2 with pin labels C-SCL and W-SDA and long wires. Close-up of a circuit board with electronic components, including capacitors and a module.

    Btw, why was this topic renamed and moved from teardowns to iot? It is a teardown after all, now of both bluetooth and beken devices.

    Added after 7 [minutes]:

    And now i disassembled another one, it was without revision (the same board, as in topic pictures), but bluetooth and with long wires.
  • #5 21269385
    p.kaczmarek2
    Moderator Smart Home  
    Sorry, you are right, I have moved it to Teardowns now.

    Well, so that's how BT versions looks like, SY801-E, I see. This IC in SOIC case is not marked?

    It looks much more cheap than WiFi version.

    Interestingly enough, it's still marked as "WIFI"? Maybe they only change the daughter board with communication module and produce the same "mother" board for both types.
    Helpful post? Buy me a coffee.
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