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Feit Electric Smart WiFi Yard Stake: BK7231T Mainboard, UART1, I2C Bus, and Flasher Issues

mbetter 492 2
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  • #1 20760113
    mbetter
    Level 5  

    WiFi-controlled outdoor yard stake with 6 outlets. Bought at Costco.

    [url=https://obrazki.elektroda.pl/2219926000_1696564879.png]Green outdoor post with six sockets and a cord.
    Close-up of BK7231T motherboard with connections and components.

    View of the motherboard with BK7231T chip and pin labels.

    The mainboard has a BK7231T directly on the board. Through-holes (J2) give access to UART1 and CEN as indicated in the picture.

    There are also holes for a separate 4-pin header with I2C bus markings. The board can be powered with 5V via this input.
    The remaining pins on this I2C header are not connected to the SoC, instead there is an empty space for an IC.

    It seems similar in many ways to other outdoor outlets from Feit.

    Despite this, so far I was not able to flash (or even make a backup of the flash). The flasher gets stuck at "Reading 0x00". Possibly bad cables,
    will try replacing.

    Code: text Expand Select all Copy to clipboard
    
Flasher mode: BK7231T
Going to open port: /dev/ttyUSB0.
Serial port open!
Getting bus... (now, please do reboot by CEN or by power off/on)
Getting bus failed, will try again - 0/100!
Getting bus success!
Going to set baud rate setting (921600)!
Going to start reading at offset 0x00...
Reading 0x00...

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  • #2 20760181
    p.kaczmarek2
    Moderator Smart Home  
    I am glad to hear its working. Is the config the same as in the post you linked?
    Helpful post? Buy me a coffee.
  • #3 20760611
    mbetter
    Level 5  

    I use this config which matches the factory behavior of the LEDs. (Blue for WiFi, red for the relay)

    Code: text Expand Select all Copy to clipboard
    
{
  "vendor": "Feit",
  "bDetailed": "0",
  "name": "Smart Wi-Fi Yard Stake",
  "model": "PLUG/WIFI/STK/WP",
  "chip": "BK7231T",
  "board": "N/A",
  "flags": "1024",
  "keywords": [
    "outdoor",
    "outlet"
  ],
  "pins": {
    "7": "WifiLED_n;2",
    "8": "LED_n;1",
    "24": "Rel;1",
    "26": "Btn;1"
  },
  "command": "",
  "image": "https://obrazki.elektroda.pl/YOUR_IMAGE.jpg",
  "wiki": "https://www.elektroda.com/rtvforum/topic_YOUR_TOPIC.html"
}

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