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One thing to come of this pandemic is the unintended stress and integration tests being put to our systems, especially home automation. In my house, we have, by being home 24/7 for the past two weeks, put enough unexpected stress on our house that some very interesting failure modes are starting to make themselves known
It started when a couple of my smoke detectors started giving false alarms. This wasn't a case of low or dead batteries, and it tended to happen early in the morning. Some research indicated that the particular model I have tends to give false alarms when dirty. Sure enough, taking them down, the amount of dust was higher than usual. My only hypothesis is that everyone being home 24/7 and the house being mostly closed because of cool weather means more humidity. That could mean dust is "sticking" to things. So, time to clean all the detectors.
And our smart thermostats are completely confused. The concept of "home" and "away" is nonsensical to it now, and its learning logic doesn't appear to know how to cope. I've turned them to full manual and nailed them to the temperature we want. I'll reprogram them later and turn off learning entirely. There is no "house arrest" mode. There should be!
One stress test that we've all been part of has been the Internet and cell system - and it's notable that it's held up pretty well for the most part. Usage patters have changed considerably, but we're all still online. We're all trying to work from home and binge watch movies. Bandwidth usage has spiked - but nothing's fallen down. This is good news.