tag
esp32
3 posts
A presence sensor that doesn't think I'm a cat
PIR sensors turn the lights off while I'm sitting still at my desk. An mmWave radar doesn't. Here is the whole build, from parts to automation.
E-paper room dashboard, battery for months
A 4.2" e-paper panel showing calendar, weather and energy use, waking once every 15 minutes.
Filament dry box that texts me when it's soggy
A heated, sealed box with an SHT31 sensor, reporting humidity per spool to Home Assistant.