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[BK7231N/T34] TW2-0003A -Bingoelec DIY Series Smart WiFi Wall Touch Switch Base 3 Gang

simovicsava 1269 3
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  • Helpful post
    #1 20748736
    simovicsava
    Level 7  
    First of all, I would like to praise the SUPER Forum and all its super members

    I've been interested in getting all my light switches off the cloud for a while now, and using OPENBK for some where I can't use Tasmota

    One of them is Bingoelec Wifi Touch Switch 3Gang With Normal EU Socket Without Wifi 3 Color Crystal Glass Panel Smart Switch

    LINK

    Three-color Bingoelec panel with EU socket and three touch switches.

    Turns out the switch is actually Bingoelec 1/2/3/4 Gang WiFi Smart Touch Switch Accessories Neutral Live Wire Switch Function Keys DIY Part EU Standard Base

    LINK

    Bingoelec T34 board with three white touch panels.

    I flashed it with the following software: BK7231GUIFlashTool

    Pins on the Bingoelec 3 Gang Standard Base are as follows:
    P10 - RX
    P11 - TX
    GND
    3.3V
    CEN (it didn't work for me, so I just did ON-OFF)

    Some pictures of me while I was flashing:

    Close-up of a circuit board with wiring and components. Close-up of the inner side of a Bingoelec touch switch with wires. Close-up of a Bingoelec touch switch circuit board with visible contacts and pin descriptions.

    I had to carefully remove one of the master plates in order to have access to P10 and P11
    I used the information from the link: LINK

    {
      "vendor": "Tuya",
      "bDetailed": "0",
      "name": "Bingoelec DIY Series Smart WiFi Wall Touch Switch Base",
      "model": "DIY Series Smart WiFi Wall Touch Switch 3 gang",
      "chip": "T34 Tuya(BK7231N)",
      "board": "TW2-0003A",
      "flags": "1088",
      "keywords": [
        "Bingoelec",
    	"DAJIMEI",
    	"T34",
    	"TW2-0003A"
      ],
      "pins": {
        "14": "Btn;2",
        "15": "Rel;1",
        "16": "Btn;1",
        "17": "Rel;2",
        "20": "WifiLED_n;0",
        "24": "LED_n;4",
        "25": "Btn;2",
        "26": "Rel;3",
        "28": "Btn;3"
      },
      "command": "",
      "image": "https://obrazki.elektroda.pl/1582514300_1695766732.jpg",
      "wiki": "https://www.elektroda.com/rtvforum/topic_YOUR_TOPIC.html"
    }


    Pin 24 has the ability to turn on or off the LED Backlight switch.

    I hope I saved someone time and trouble.

    PS: this is my first topic, so if there are any mistakes, I apologize, and I would ask the administrators to correct them. Thank you
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  • #2 20795670
    ozkankaratass
    Level 1  

    Hello,
    Relay 2 turns itself on when I restart or turn it off and on from the Wi-Fi router.
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  • #3 20795861
    simovicsava
    Level 7  
    I have no such problems, check the PIN settings and the channels they are on

    Screenshot of device PIN configuration settings.
  • #4 21620149
    DGAlexandru
    Level 7  
    Hi,

    how is the experience with this Smart WiFi Touch Switches?
    I need to buy about 5 of them, 3 Gang ones, and I'm not sure if I can configure them to have the status LED color controlled independently of the relay status.
    I see from the images you put that the LED status control is configured only once, so maybe you have defined each LED's state somewhere else (like in a script or autexec.bat file).

    Does your model also have RF control (433MHz)? I don't need it, but I guess I can hardware disable it :D

    Until now I have these 2 options that look good enough for me:
    https://www.aliexpress.com/item/1005004333305312.html - 1000W /relay and only 300W if load is a LED.
    https://www.aliexpress.com/item/4000100341188.html - rated at 10A per relay, 2000W, no idea what is the max load for controlling light sources made of LEDs.

    I don't think I'll use the internal relays for driving the loads as I'll use them in an apartment where all the light loads and all the switches have been wired to a central location where I'll use dedicated relays to drive each load, so most probably if I decide to use this switch's internal relay, it will be only to have a backup for the central system that reads the switches by WiFi MQTT and acts on it.
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