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THE FINALS: Season 4 Power Shift - #45 Worldwide

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Cake day: March 4th, 2024

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  • I used to work as a PQI contractor at Nest, and we actually had test setups like this in the office that were just a circuit breadboard mounted on a plate behind the thermostat. The thermostat doesn’t really “communicate” with the HVAC control system at all (all it does is just send ~3V along the circuits based on its current mode), so as long as you have the circuits routed properly on your board, the thermostat will think it’s connected to a real system.

    The stock firmware doesn’t let you go above a certain temp (like 80F or something, I forget the exact limit). But if your custom firmware allows it, the only thing that would realistically happen is that it just runs a 3V circuit to what it thinks is the heater, infinitely, since nothing is actually causing the ambient temperature to raise at all. The ambient temp reading comes from a sensor on the thermostat, itself.





  • Chozo@fedia.iotoMemes@sopuli.xyzNot impressed
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    3 days ago

    I had a teacher in 6th grade who told us that God placed the earth the perfect distance from the Sun; a few inches closer and we’d all burn, and a few inches further and we’d all freeze. I got detention for standing on top of my desk and asking why I wasn’t on fire yet.

    That kinda shattered my view of teachers being arbiters of knowledge.