Category: Useful Sensor
Useful Sensor: Cardinal Wind Direction for Home Assistant
As someone who cycles to work most days, I keep a pretty close eye on the weather. One thing I like to know is which way …
Useful Sensor: Bayesian Sleep Detection in Home Assistant
Sleep is not something I can directly observe in my smart home (at least not until I build that DIY bed sensor). It would be nice to …
Home Assistant: Making My Plants Talk with IoT Sensors and a Python Script
Living in an urban city without a garden, I have been exercising my green thumb by accumulating more and more houseplants. I have them tucked away …
Useful Sensor: Motion Last Seen & Meta Motion Sensor
You know what’s great about motion sensors? They are very, very cheap to build yourself. All it takes is an esp8266 module like the Wemos …
Presence Detection Part 2: Improving Presence with Node-Red
In my previous post about presence detection, I showed how you can combine multiple device trackers into one highly accurate Bayesian sensor. In Home Assistant, this …
Presence Detection Part 1: Home Assistant & Bayesian Probability
One of the most useful things to track for home automation is whether anyone is home or not. If you want the lights to turn off …