Hi everyone, I wanted to share my recent project where I integrated Node-RED with ESPHome to create a smart irrigation system. It’s been a fascinating journey, and I thought I’d walk you through my setup and some of the lessons I’ve learned along the way.
I started with a basic irrigation setup using a Sonoff 4CH Pro R2 running ESPHome. The goal was to automate watering for my garden based on soil moisture levels and weather conditions. I set up one zone initially, using a doorbell transformer for power, and connected everything through Node-RED for automation.
One of the challenges I faced was ensuring consistent moisture readings. I experimented with different sensor placements and found that burying the sensors at a slight angle provided more accurate readings. I also integrated weather data from OpenWeatherMap to adjust watering schedules based on rainfall predictions.
The automation rules I created were pretty straightforward. For example, if the soil moisture drops below a certain threshold and it hasn’t rained in the past 24 hours, the system triggers the irrigation for a set duration. I also added a failsafe to prevent overwatering by checking the system’s last run time.
I’m really impressed with how Node-RED handles the logic and integration with other smart home components. It’s incredibly flexible, and I can see myself expanding this setup in the future to include more zones and advanced features like water usage tracking.
One thing I’m still considering is moving to a more dedicated irrigation component in Home Assistant, like the one developed by @klogg. It offers a lot of advanced features that could take my setup to the next level. However, for now, Node-RED has been more than sufficient for my needs.
If anyone has tips or suggestions for optimizing this setup or integrating additional sensors, I’d love to hear them! It’s been a great learning experience, and I’m excited to see how this project evolves over time.
Best regards,
[Your Name]