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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: 0.209s | 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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newmac ◴[28 Apr 23 19:07 UTC] No.35745702[source]▶
Our house has a commercial style HVAC system. The controllers for everything (relays) are very simple. The run on a protocol called BACNet that is unauthenticated and pretty straightforward.

I was able to read in all the data points and then use the weather forecast and a few other data points to make changes to my HVAC system. The comfort different has been very drastic. Our house doesn't overheat on hot days and doesn't get cold fast when the temperature drops. (I am in the Northeast where there are big swings).

replies(1): >>35823062 #
1. Rediscover ◴[04 May 23 22:39 UTC] No.35823062[source]▶
Hey, I apologize You were exposed to BACNet. Seriously. That was one the worst HVAC protocols I've dealt with. It seemed (1990's) to do most stuff in obtuse ways compared to other HVAC comms.

At least The standards were supported (eg. 4-20mA).

Again, sorry. And glad You toppled it.