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[BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

Bruno23 954 2

  • I bought a pack of these bulbs as they were listed as supported under Tasmota but the design seems to have changed to using the Beken BK7231N chip.
    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    The bulbs look pretty basic.
    I used a pry tool to pop the plastic cover off

    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    The easiest way to remove the led board is by prying next to the connector as shown in the image

    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    We need to get the second board out and the easiest way to do this is to pry off the two small metal contacts on the bottom of the bulb. Other socket types probably come apart in different ways

    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    When the two contacts are pried off the board just falls out. I put a small black mark on the side where the black wire connects.

    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    We can now inspect the WiFi board to figure out the pinout needed
    Here is the pinout needed to flash the firmware

    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    And here is the board once some wires have been soldered to flash the firmware

    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    I only soldered 3 wires as I used the ground pin on the LED board connector for my ground

    [BK7231N] Avatar ALS08L-B22 Smart Bulb Teardown and OpenBeken Flash Guide Template GPIO

    When using Belkin gui flash tool the software should automatically pick up the configuration of the device from the firmware. I have included it in this guide.

    Once flashed the bulbs are ready to be setup. I have done this on two bulbs so far.

    Cool? Ranking DIY
    About Author
    Bruno23
    Level 2  
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    Bruno23 wrote 2 posts with rating 4. Been with us since 2023 year.
  • #2
    p.kaczmarek2
    Moderator Smart Home
    Thank you, it's nice to see another device getting free from the cloud! Very well done, I can also see that my automatic GPIO importer worked well and detected SM2135 driver.

    Here's OBK template for this device:
    Code: json
    Log in, to see the code
  • #3
    Bruno23
    Level 2  

    Thank you! The GPIO detector worked perfectly, and the bulb worked right away when I imported the generated config.