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Flashing EXTRASTAR E14 Candle Bulb [BK7231N] with OpenBeken and Cloudcutter

jxctno 90 0
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  • OpenBeken configuration for EXTRASTAR E14 BK7231N bulb

    #1 21955841
    jxctno
    Level 1  
    Posts: 1
    Hi all,

    After much internet-ing I stumbled across a way to FINALLY get an old smart bulb I bought years ago off Amazon to work with open-source software - I'd got it working with Home Assistant previously, but after a move (and access to Far Too Much Time) I decided to get it fully local - hence the Open Beken config.
    The bulb is no longer availible from the link i got it from here but im sure there are people like me around who are looking for it and will find this useful.

    Flashing EXTRASTAR E14 Candle Bulb [BK7231N] with OpenBeken and Cloudcutter

    I found a few tools with help of google search:
    * tuya-cloudcutter
    * BK7231GUIFlashTool
    * OpenBK Webapp

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    1. I started off by flashing the OpenBK firmware with cloudcutter - this was relatively easy and the documentation is sublime over there (lots of flicking the power switch in the lamp the bulb is in)
    2. After trying to figure out why nothing was happening, i spun up FlashTool in WINE to try and find it - after reflashing and more switch flicking, I managed to get the the config page. I scanned my LAN (making sure to set the IP correctly!!) and eventually found the IP for my bulb, connected to it and was greeted by the bulb's web server.
    3. I managed to figure out how to set pins and set the WIFI network fully, and then found the page in FlashTool to dump the tuya config, which revealed:
    
    Device configuration, as extracted from Tuya: 
    - BP5758D_DAT on P24
    - BP5758D_CLK on P26
    - LED remap is 1 0 2 4 3
    - RGB current is 8 mA
    - Warm white current is 14 mA
    - Cold white current is 14 mA
    Device seems to be using CBLC5 module, which is using BK7231N.
    Device internal platform - bk7231n, equals BK7231N.
    


    4. Which I converted to the JSON below with the Web app
    [code]
    Code: JSON
    Log in, to see the code


    So now, I have a lovely working smartbulb that I have full control over!

    If I need to add any info/details, or I can answer a question, let me know!

    Big thanks to all the OpenBK, HA and Cloudcutter devs!!
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