@androidarts@mastodon.gamedev.place
2026-03-21 21:35 UTC
I wonder if it's possible to use a physical switch... like a leaf switch that heats up in the sun, makes contact, then cools and retracts. What DIY material do I have that expands in the sun that I can use for DIYing a switch? A sealed tube with water, and a flotation contact?
Thermal switches seem to be a thing you can buy. some are be fluid expansion based judging by pics.
I actually do have a few thermal switches. They're found in egg and water boilers, but might be the wrong temp.
Replies (1)
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@androidarts@mastodon.gamedev.place 2026-03-21 22:01
Looking on ebay, thermal switches can be bought normally open and closed, at most Celsius temp ranges. Painted black they might trigger at 40-50 degress or so. Just a few quid each... but in a land far far away. Can also get a 30 degree one and put directly in the bird house, triggering the fan. Once cool, it shuts off. Might result in teetertottering and battery drain though.