I still don’t 100% know what the issue is but for the past several months, my PurpleAir Classic sensor has been incredibly flakey when it comes to reporting data. Home Assistant would report random bouts of “timeouts” while trying to poll the sensor and that would result in gaps in the data. In the best case, the gaps were only a few minutes long but sometimes they would last for hours at a time.
First, these things have existed for quite a few years now but people still seem to be discovering them. If you are one of todays lucky 10,000 people to find out about them, you’re welcome. I hope these can change your mind about rechargeable batteries; they’re good, now!
One of mine started failing with intermittent output voltage so I decided to take it apart and see what was inside.
Electric utilities can employ “load shed” devices throughout their grid to manage load. These devices are usually found on air conditioners, water heaters, pool pumps and other large electrical loads. Typically they’ll offer you a small financial incentive to allow the utility to cycle your device off for short periods of time during peak demand events.
The Corporate Systems Engineering SSHAAC00-S041911 is one such device.
This is a follow up to my ‘Frigate From Scratch’ post. Most of that post is still relevant today but I have since moved almost all of my workloads into Kubernetes.
This post is intended to document some of the issues I hit while trying to get Frigate running in my k8s cluster. This is not every issue I hit, just the ones that are not directly related to my specific environment/setup/workflows.
Bit of a change in format; instead of one massive post for all the misc. 11-11 teardowns, I’m grouping them. This post is the “LED Controller” group. I managed to snag the following on Ali Express:
To continue from last year’s trend, I waned to celebrate that all three of these LED controllers have:
