Sometime early last year I replaced my SmartThings home automation hub with a Home Assistant VM running on an Intel NUC.
Not long after that I converted my Envirosense boards (see previous post) to run the ESPHome firmware and started scraping Prometheus metrics from Home Assistant.
There was one thing I wasn’t happy about with my original design.
The PIR sensor was frequently showing false positive motion events.
This seems to have gotten worse with the switch to the ESPHome firmware. It appears to be a known issue that these HC-SR501 modules are easily triggered by Wifi interference.