-
Air-Gradient-Extended
Using Air Gradient DIY kits and EspHome, with some additional sensors added in (TVOC and Pressure)
-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Woo I have a blog post that may help for button automations, https://lab.rapternet.us/?p=1506 you can also take a look at air gradient for air quality monitoring, it's entirely compatible with esphome, https://github.com/AeroSteveO/Air-Gradient-Extended I've been working on making some with additional sensors so you may need to cut out some of my config, but it should give a starting point.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.