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Ask HN: Most interesting tech you built for just yourself?

1901 points l2silver | 1 comments | 27 Apr 23 15:04 UTC | HN request time: 0s | source

Maybe you've created your own AR program for wearables that shows the definition of a word when you highlight it IRL, or you've built a personal calendar app for your family to display on a monitor in the kitchen. Whatever it is, I'd love to hear it.
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kubota ◴[28 Apr 23 17:13 UTC] No.35744212[source]▶
I have a tractor. Mice like to chew electrical wiring because the wire casings are made of soybeans, so the tractor dealer recommended setting several traps by my tractor. I couldn't stand killing a mouse so I used "humane" catch and release traps, the problem was a mouse died because I forgot to check the trap. So I put a reed switch and an esp-32 on a catch and release mouse trap that when tripped, sent an mqtt message to aws iot, that triggered a lambda function that sent me an email notifying me I had a mouse to let out of its trap.
replies(2): >>35748053 #>>35765582 #
1. ThomasMidgley ◴[30 Apr 23 19:03 UTC] No.35765582[source]▶
Oh, I built something similar with Homematic. When one of our mousetraps closes, I immediately get a message via my Pushover app.