Hi everyone,
I want to share another real-world automation project I use at home, this time for smart water tank monitoring using a TUYA ultrasonic sensor integrated with Home Assistant.
Channel: Home Assistant PC
Technical content, straight to the point and without unnecessary details.
The sensor measures water height, and all the “magic” happens within Home Assistant,
where I convert the data into liters, consumption, costs, and visual automations.
Project repository on GitHub
What is shown in the project and video
- Physical installation of the ultrasonic sensor in the water tank
- Integration of the TUYA sensor into Home Assistant
- Conversion of percentage to liters
- Custom sensors (input, output, and variation)
- Utility Meter (daily, monthly, annual)
- Calculation of consumption and cost in reais (Brazilian currency)
- Identification of water supply from the utility company
- Last supply with formatted date
- Alert automations (low, medium, and critical levels)
- Advanced visual cards with color-coded indicators
- Functional and organized dashboard for daily use
Everything done practically, with real examples, exactly as I use it in my environment.
If anyone wants to adapt it for another type of tank, another sensor, or discuss improvements to the calculation and cards, I am available.