HAsmartirrigation

Abstract

1. Introduction

This integration calculates the time to run your irrigation system to compensate for moisture loss by evapotranspiration. Using this integration you water your garden, lawn or crops precisely enough to compensate what has evaporated. It takes into account precipitation (rain, snow) and moisture loss caused by evapotranspiration and adjusts accordingly. If it rains or snows less than the amount of moisture lost, then irrigation is required. Otherwise, no irrigation is required. The integration can take into account weather forecasts for the coming days and also keeps track of the total moisture lost or added ('bucket'). Multiple zones are supported, each zone having its own configuration and set up.

The HA-native configuration panel — instant-save editing, native controls, everything in one place.

2. Objective

Smart Irrigation custom component for Home Assistant

This project demonstrates how Python can be applied to a real-world Internet of Things (IoT) problem.

3. Key Features / Modules

• Switch weather service on the fly — move between OpenWeatherMap and Pirate Weather, and update the API key, without removing and re-adding the integration.
• One-click Backup / Restore of your entire configuration as a JSON file.
• ⏰ Flexible start triggers around sunrise, sunset or solar azimuth — each firing its own identifiable event for your automations.
• Actively maintained — steady fixes, refinements and new features.
• Recurring schedules — daily / weekly / monthly / interval-based schedules via the smart_irrigation.create_recurring_schedule service.
• Seasonal adjustments — automatically adjust irrigation parameters based on the season.
• Irrigation Unlimited integration — bidirectional integration with the Irrigation Unlimited component.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Python 3.8 or later
• pip / virtualenv for dependencies
• VS Code, PyCharm or Jupyter Notebook
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/altmenorg/HAsmartirrigation.git
cd HAsmartirrigation

1. In HACS, search for Smart Irrigation and click Download.
2. Restart Home Assistant, then add it from Settings → Devices & Services → Add Integration → Smart Irrigation.

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add a mobile dashboard using Blynk or Firebase
• Store readings in a cloud database for history charts
• Add alerts via SMS / Telegram when thresholds are crossed

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which microcontroller / board and sensors are used and why?
2. How does the device send data (Wi-Fi, MQTT, HTTP, Bluetooth)?
3. Where is the sensor data stored and visualised?
4. How is power consumption managed?
5. How would you secure the device and its communication?

9. Source Code & License

This project is developed by altmenorg and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.