I’ve always been passionate about gardening, but managing a greenhouse manually was taking up too much of my time. That’s when I decided to automate it using Hubitat! 
The project started when my partner wanted to expand her garden, and we built a 6x8 greenhouse. I saw an opportunity to integrate smart home technology. The result? A fully automated greenhouse that maintains optimal conditions for plant growth. Let me share how it works!
The Setup:
- Components: I used a mix of Zigbee and Z-Wave devices for heating, ventilation, and circulation. The electric heater, vent fan, heating pads, and circulator fan are all connected and controlled via the Hubitat ecosystem.
- Sensors: A Sonoff SNZB-02D for greenhouse temp/humidity and an Ecowitt weather station for outdoor conditions.
How It Works:
- Heating: The heater kicks in at night to maintain warmth, turning off once the set temperature is reached.
- Ventilation: During the day, the multi-speed vent fan adjusts based on temperature thresholds, ensuring optimal cooling without wasting energy.
- Circulation: The circulator fan runs to keep the air moving, with settings to sync with heating or ventilation modes.
Dashboard Magic:
I designed a custom dashboard using Sweet Home 3D for a top-down view. It’s fully interactive, with animated icons for visual feedback. I even integrated Google Sheets for logging and charting data over time!
User-Friendly Controls:
I hijacked thermostat tile attributes to adjust setpoints and added buttons for enabling/disabling components. A command entry tile allows for quick adjustments, like changing multiple settings at once.
The Future of My Garden:
This project has been a labor of love, and I’m thrilled to see my plants thriving thanks to this automation. It’s not just about convenience—it’s about creating the perfect environment for growth. 
If you’re interested in the code or have questions, feel free to reach out! I’d love to help others automate their greenhouses too. Happy gardening! 