Our great sponsors
-
esphome
ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems.
-
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.
Others have suggested Home Assistant. That will run on a Raspberry Pi 4 and would be an excellent starting point. For building your own sensors, take a look at https://esphome.io/ - this works with Home Assistant and allows you to build your own sensors (and output devices) using the inexpensive NodeMCU Esp8266 modules.
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.