rarely

@rarely@sh.itjust.works

I try things on the internet.

rarely, shit just works.

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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...

rarely,

Fantastic, thanks! I’ll take a look

rarely,

Oh yeah, I hear you on LLMs. Technically, ChatGPT has not “heard” of anything. It’s generally something I use as a jumping-off point when I’m desperate and don’t know what search query to use.

Does passive RFID harvest its power? I don’t know much about RFID (I’ll probably head over to wikipedia after this comment) but I figured that it was a circuit that, when given a bit of energy from a reader, sends back an RF signal with an encoded ID and that in the absence of that powered reader, the RFID device wouldn’t be transmitting anything.

rarely,

I guess the difference for me would be how long it stores that energy for, but the difference is probably semantic and easily changed with a few capacitors.

rarely,

Oh yeah, i’ve seen that before! I’ll need to try to make one of these as well. Looks like a fun experiment!

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