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How to Install OBK on Realme Smart WiFi Switch with BK7231T Chip

sanchetk51 687 6
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  • #1 21210106
    sanchetk51
    Level 2  
    Hello I am adding the config for Realme smart wifi switch which works with "realme link" app. Realme Link is not a tuya Application. you cannot connect this device with tuya app nor smart life app. Flashing process is same as other wb2s devices.

    White Realme smart Wi-Fi switch with three pins.     A white Realme smart switch next to an orange box labeled realme Smart Plug.

    product link

    Remember to remove the chip from pcb before flashing. Below is the conf for this device

    Code: JSON
    Log in, to see the code
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  • #2 21210419
    p.kaczmarek2
    Moderator Smart Home  
    That's interesting, so that was not using Tuya SDK? Or was it? Do you have 2MB backup?

    Why do you use Rel_n and Btn_n instead of Rel and Btn?
    Helpful post? Buy me a coffee.
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  • #3 21214614
    sanchetk51
    Level 2  
    >>21210419
    I do not know whether it uses tuya SDK, but these devices won't get added into tuya nor any of the tuya applications. And yes I have the backup file. I have used Btn_n as Btn was showing long press in the logs.
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  • #4 21214634
    p.kaczmarek2
    Moderator Smart Home  
    That's very interesting. Maybe you were indeed right with Btn_n, but that would be a very rare occurence. So far I've seen only Btn devices only, as far as I remember.

    Is the 2MB backup done before pairing? If it's , you can share it.
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  • #6 21214905
    p.kaczmarek2
    Moderator Smart Home  
    but ADC is used for multiple buttons, and there is a single one?
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  • #7 21218887
    divadiow
    Level 34  
    sanchetk51 wrote:
    And yes I have the backup file

    if there's a chance your backup contains wifi credentials then I'd be happy to reflash and join to a test network and then back it up again for posting here. DM it to me if you want this.

    Added after 2 [minutes]:

    or this looks to be the same device (?) and there's a dump here https://github.com/tuya-cloudcutter/tuya-cloudcutter/issues/478
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Topic summary

The discussion revolves around the installation of OBK firmware on the Realme Smart WiFi Switch, which utilizes the BK7231T chip. The user clarifies that the Realme Link app is not compatible with Tuya or Smart Life applications, and the flashing process is similar to other WB2S devices. Key configuration details are provided, including the use of Btn_n and Rel_n for button and relay functions, respectively, due to specific logging behavior. Participants inquire about the use of the Tuya SDK, the existence of a 2MB backup, and the potential for sharing this backup for further testing. There are also mentions of similar devices and the possibility of using ADC for button functions.
Summary generated by the language model.
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