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Joined 2 years ago
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Cake day: June 15th, 2023

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  • Not exactly the same, but I have an air quality sensor I use to turn the HVAC fan mode on/off to filter. Also a CO2 sensor. Both wired to the RPi I run homeassistant on. The HVAC is controlled via T6 pro Z-wave now, but I started out with a Zooz Zen15 switch to just turn the whole thing on/off.

    The CO2 sensor has been pretty stable for 4(?) years - it has an internal recalibration routine that resets its baseline based on the past week’s data. My readings range from 400-ish with the windows open & fans to 1200+ cooking with gas in the sealed house. Averages around 800 with the AC or 500 with the furnace (which exhausts combustion gasses). The aq sensor has been replaced once after 3-4(?) years. It reads exactly what purpleair says is outside with the windows open, drops to 0-2 µg/m3 with the filters running, spikes to 300+ cooking.











  • You can configure HA to use an external database, so you could (presumably) config two instances to use the same DB. Not sure how much conflict that would cause for entities that are only attached to one of those instances, but it seems like both should have the same access to state data and history. Could probably even set one instance up with read-only DB access to limit data conflicts, although I imagine HA will complain about that.

    Even with an external database, HA still uses its internal DB for some things, so I don’t think you’d ever get identically mirrored instances.


  • If you make it to Medicare age, it gets a lot less stressful. eg: my folks have had 4 knees replaced with very little out-of-pocket cost. There’s still supplemental insurance, but Medicare, not the profit-driven insurance company, determines what gets covered, and they mostly listen to doctors. There’s always edge cases, where some treatment might not be covered, but I feel like those are uncommon.

    One way or the other, my ultimate health care plan is 9mm.


  • That’s my point: fusion is just another heat source for making steam, and with these experimental reactors, they can’t be sure how much or for how long they will generate heat. Probably not even sure what a good geometry for transferring energy from the reaction mass to the water. You can’t build a turbine for a system that’s only going to run 20 minutes every three years, and you can’t replace that turbine just because the next test will have ten times the output.

    I mean, you could, but it would be stupid.




  • I have 8 Z-wave devices now, including a couple “long range” devices. With the first couple, I would sometimes have trouble with the farthest, battery-powered device dropping out of the network occasionally, but that hasn’t happened as I’ve added more devices. I fought with pairing the initial devices - clicking the right series of buttons at the same time as telling HA to look for devices to join - but all the recent devices have just has a QR code - scan it into HA, and the device just shows up when I turn it on. I don’t know how much of this difference between new and old is my learning curve vs better product support, but I am really happy with my Z-waves now.

    Z-wave rather than wifi so I know they aren’t phoning home.




  • I feel like ‘normal’ politicians are more beholden to old-guard oligarchs, because those are the ones that brought their parents and grandparents to power. The people who’ve been funding them through their whole, 50-year careers. Those oligarchs have generally learned to avoid the public eye, including politicians that attract public scrutiny.

    Donald Trump doesn’t care about relationships, heritage, or established trust. He just wants money and flattery, right now, in great volume, and that makes him uniquely susceptible to new money tech bros.