It's the handle of a water kettle. Behind the circuit board is nothing. There is also no other circuit board in the kettle. Is the yellow thing the beeper? Thanks for any help 🙏

  • birdcat@lemmy.ml
    hexagon
    ·
    1 year ago

    FOUND THAT PIECE OF SHIT! 🥳

    Hiding under a hidden and additionally enclosed and secured circuit board, omg cannot believe I didn't break it removing that shit 😅

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  • AbidingOhmsLaw@lemmy.ml
    ·
    edit-2
    1 year ago

    No beeper in this photo. Could be a piezoelectric disk hidden some where they are small and thin. what’s on the other side of the PCB? Also look stuck to the plastic, piezos are often stuck to the casing to use it as a sounding board.

    Edit: not sure what the yellow thing, cap maybe, can you get a better picture of the text on it ?

  • RocketBoots@programming.dev
    ·
    edit-2
    1 year ago

    Is the capacitor an x2 cap for voltage surges? Looks like it. The rest is just normal stuff. Not my field, been out of school for years and am an idiot. That being said I'm curious: what's the inductor by the Emi suppression capacitor for in this circuit? Is it just to form a tank circuit to heat the kettle more efficiently?

      • birdcat@lemmy.ml
        hexagon
        ·
        1 year ago

        idk, not familiar with those things. the kettle can has 5 modes of temperatures: 60–100 °C. Its really nice, just insanely loud. More pictures if case it gives more info, sorry for the bad quality, hope its readable

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        • RocketBoots@programming.dev
          ·
          edit-2
          1 year ago

          Top is a relay, bottom is a capacitor. Thanks! The sound you're hearing is probably from a piezo buzzer like some one else mentioned. I wish I was home so I could send you a picture of one. They can be really loud!

        • RocketBoots@programming.dev
          ·
          edit-2
          1 year ago

          Here's what those buzzers can sometimes look like:

          *removed externally hosted image*

          They just make sound to indicate the state of things when used as part of a circuit. Like your kettle being finished boiling water.