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[BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver

wenkman 552 1
  • wenkman - 20 Jan 2023 00:35
    This is a short teardown and flashing guide for ANTELA ceiling lamp PLAFONIERA 20W
    [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver
    Wenkman - 20.01.2023
    Brand: Immax
    Model: ‎AN-EU-CL260-WIFILIC-RGBCW-TD-01
    Chip: BK7231N
    LED Driver: SM2235EGH
    Shop: Amazon

    I searched Amazon for a ceiling light made by Tuya, found the above, ordered it, arrived 10 days later and immediately disassembled it.

    [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver

    I quickly found the "3.3V,GND,RX,TX" pins on the underside, but still wanted to try the tuya-cloudcutter first.

    first connected the lamp to the SmartLive app to find out the current firmware
    [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver

    Then immediately disconnected the lamp again.

    I have now followed this guide again.
    I pulled the current firmware for the BK7231N from Github
    wget https://github.com/openshwprojects/OpenBK7231T_App/releases/download/1.15.344/OpenBK7231N_UG_1.15.344.bin

    and then started the flashing with the start command:
    sudo ./tuya-cloudcutter.sh -w wlan0

    [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver

    After flashing, you should definitely check which version was installed, it must be at least 1.15.345
    [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver
    otherwise update under OTA

    after that define the pins
    
    P24: SM2235DAT
    P26: SM2235CLK
    

    [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver

    now just create an autoexec.bat and add the following code (for BGRCW customization).
    
    SM2235_Map 2 1 0 3 4
    

    [BK7231N/SM2235] RGBCW ANTELA Alexa Deckenlampe LED WiFi 20W (Immax) with SM2235EGH LED driver
    then just confirm with the button "Save, Reset SVM and run file as script thread" and the lamp is ready.

    I hope I could help someone with this.

    Cool? Ranking DIY
    About Author
    wenkman
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    wenkman wrote 4 posts with rating 4. Been with us since 2023 year.
  • #2
    p.kaczmarek2
    Moderator Smart Home
    Thank you, it's good to see that SM2235 driver is useful for users.

    SM2235 driver is very similar to SM2135, but it offers a 10bit colour precision, which is better than 8 bit in SM2135 version.

    So we already support SM2135, SM2235, BP5758 and BP1658 - are there any more drivers needed?

    Btw, the SM2235 autostart was resolved/added, it should work in further updates.