Pool Automation in a Smart Way
An Open Source Project to manage your Swimming Pool using Home Automation. Control circulation, heating, and monitoring - all from your smartphone.
WARNING: 230V Mains Voltage
This project operates with 230V AC mains voltage and should only be built by individuals with basic electronics knowledge. Always use an RCD (residual-current device). This project is not CE/UL certified and not intended for commercial use.
✨ Why Smart Swimming Pool?
Runs on its own
The control logic lives on the ESP32. Circulation and heating keep working without internet, WiFi or a smart home server.
Circulation and solar heating
Timed filter-pump circulation and solar heating with hysteresis. Operation modes: Auto, Manual, Boost and Timer.
Smart home ready
Home Assistant discovers the controller automatically via MQTT Discovery. openHAB and other MQTT systems connect with manual configuration.
Built to be reliable
Settings survive reboots, a hardware watchdog recovers from faults, and the relays stay off while the controller boots.
Easy to operate
Built-in web interface for configuration and control, plus over-the-air firmware updates.
Open and modular
MIT licensed. Start with the controller (electronics ca. 35–55 €) and add monitor, Grafana dashboard or water quality monitor later.
🧭 Where to start
- Start Here — pick the path that fits your setup
- Quick Start — breadboard setup in 60 minutes, or the detailed Build Guide
- Bill of Materials and Commissioning Checklist — before any pump touches mains voltage
- Home Assistant or openHAB integration
Everything else is in the full documentation.
