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CapillaryUpgrade

@CapillaryUpgrade@lemmy.sdf.org

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Is “harvesting” small amounts of electricity a fools errand?

Serious question from a beginner in electronics. For reasons I do not fully understand, I have become fixated on the idea of collecting small amounts of electricity from “interesting” sources. I don’t mean “free energy”, instead, I mean things like extracting a few mV from being so close to a AM radio tower using two...

CapillaryUpgrade,
@CapillaryUpgrade@lemmy.sdf.org avatar

I can’t find it now, but i’m pretty sure there exists smart home light switches that are powered by you pressing it.

IIRC they run Zigbee to communicate with the smart home and had a bit more resistance when pressing (= more energy).

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