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Configuring YG400A WiFi Smoke Detector (T1-U-HL) with OpenBeken for Home Assistant

PitSchnass 39 0
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  • #1 21846089
    PitSchnass
    Level 1  
    I wanted to integrate our smoke detectors into Home Assistant (without cloud) and so I bought a bunch of the well known 'Wi-Fi Smoke detector YG400A'. I hoped I could use the configuration hints from this thread.
    But the PCB (YG400A-T A010) has another CPU T1-U-HL chip than expected.

    I found a thread in this forum with this chip and so I tried to flash the chip.
    The flash process with the 'Easy UART flasher' and this file 'OpenBK7238_QIO_1.18.263.bin' was successful.

    Wi-Fi is working and I could integrate the smoke detector into my local network.
    The configuration page looks newer than in the other thread (btn has now a second edit box, wifiled has no edit box).

    Now I need some help on how to proceed further to get the smoke detector to work.

    Configuration after original firmware backup:
    TemplateGP...config.txt Download(880 bytes)

    Regards

    Close-up of a purple PCB labeled “YG400A‑T A010” with a vertical row of solder pads on the right
    Purple PCB with a large black central component and a radio module; laptop keyboard in the background.
    Screenshot of BK7231 Easy UART Flasher showing “Write success!” and flashing log output
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