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WB03A Chip Pinout and Identification for 3Gang Smart Switch Soldering

rufus33 30 1
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  • #1 21836503
    rufus33
    Level 2  
    I got a new 3-gang switch, but this chip is labelled WB03A. I really need help
    Opened three-gang wall switch: green PCB with radio module and three tactile buttons next to the cover
    on its pinouts to solder and what kind of chip this is. Back of a “WiFi Smart Switch” BW1 module with terminals labeled L, L1–L3, and N
    Blue WB03A electronic module with PCB antenna on a green printed circuit board

    PCB in a white case with three tactile switches and a blue module with a printed antenna


    AI: Can you provide the brand and full model number of your 3-gang Smart Switch?
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  • #2 21836555
    divadiow
    Level 37  
    Maybe an RTL8720CM?

    is there any readable text on the square black chip? I can't see anything in the pics.
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