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Smart plug chip identification and suitable firmware suggestions

zaffresky 1308 4
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  • #1 20987666
    zaffresky
    Level 2  
    Hi guys, I have been using a few smart sockets that I bought off Amazon. These are Tuya compatible white label sockets. I recently read about the possibility of flashing smart plugs with Tasmota so I was very excited and wished they would have some ESP chip inside but to my disappointment, it's some other Chinese module. The markings on the chip show W701H - K71N5H1 - GK33T2.

    I searched the chip model on the internet and the most results are about WBR3L or WBR2L. But the RF chip in these modules is W701H-VT2-CG. So I am a bit confused :( and have the following questions.

    -Are both these chips the same/similar?
    -Can you suggest any third party firmware that offers similar features as Tasmota or ESPHome?
    -Lastly, can you give some tips how to flash this module as I don't see any exposed pins on the pcb. The only option I see is directly interfacing the RF chip.

    Here are some photos and thanks in advance for your suggestions :)

    Porik smart socket with visible electrical plug outlet.

    Close-up of an electronic module with a chip labeled W701H - K71N5H1 - GK33T2 on a blue printed circuit board.

    Close-up of a module on a smart plug circuit board.

    Close-up of an electronic module with a blue PCB labeled 516-00132.
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  • #2 20989157
    divadiow
    Level 34  
    Moderated By p.kaczmarek2:


    Edited out incorrect information. It's not WinnerMicro

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  • #3 20989629
    zaffresky
    Level 2  
    Thanks for your reply. So this means that it's not yet supported by OpenBK yet correct?

    Regarding the RF chip itself, another user also suggested that the W701H is RTL8720CF based whereas the post you linked mentions a BK7231N chip. Is there any way the exact chip could be determined through software?
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  • #4 20989752
    divadiow
    Level 34  
    zaffresky wrote:
    Thanks for your reply. So this means that it's not yet supported by OpenBK yet correct?


    correct
    zaffresky wrote:
    Regarding the RF chip itself, another user also suggested that the W701H is RTL8720CF based whereas the post you linked mentions a BK7231N chip. Is there any way the exact chip could be determined through software?


    sorry, yes. the W701H is a Realtek RTL8720CF
  • #5 21379244
    p.kaczmarek2
    Moderator Smart Home
    Helpful post? Buy me a coffee.
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