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Tuya XT-V2 Teardown: BK7231N Pinout, Battery Setup, and autoexec.bat Configuration

groove6j 12 0
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  • Helpful post
    #1 21868345
    groove6j
    Level 9  
    Hello. Submitting a teardown. Wi-Fi water leakage detector/sensor.

    {
      "vendor": "Tuya",
      "bDetailed": "0",
      "name": "XT-V2",
      "model": "xt-v2",
      "chip": "BK7231N",
      "board": "TODO",
      "flags": "1024",
      "keywords": [
        "xt-v2",
        "wi-fi water leakage",
        "leakage detector"
      ],
      "pins": {
        "16": "dInput_NoPullUp;1",
        "17": "BAT_Relay;4",
        "20": "dInput_NoPullUp;2",
        "23": "BAT_ADC;4",
        "26": "WifiLED_n;3"
      },
      "command": "",
      "image": "https://obrazki.elektroda.pl/YOUR_IMAGE.jpg",
      "wiki": "https://www.elektroda.com/rtvforum/topic_YOUR_TOPIC.html"
    }





    autoexec.bat:
    // Powersave mode
    // powersave 1
    
    //Battery config
    startdriver battery
    Battery_Setup 2200 3000 1.6 2400 4096
    //measure batt every 2s
    Battery_cycle 2
    
    //mqtt_broadcastInterval 1
    //mqtt_broadcastItemsPerSec 5
    
    setChannelLabel 1 Water
    // now wait for MQTT
    waitFor MQTTState 1
    // extra delay, to be sure
    delay_s 1
    
    // publish water state at least once after boot
    publishchannel 1
    DSEdge 0
    // All good, sleep for 1 day or next water event after 60s
    delay_s 60
    PinDeepSleep 86400


    Images attached.
    White water leak sensor with cable and “Wi‑Fi Zigbee Water Leakage Detector” leaflet on a wooden surface Disassembled water leak sensor with exposed PCB and cable on a wooden tabletop
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