“This project uses the Particle Photon and a relay module to create a 6 station sprinkler controller. It has these features not found in similar projects: Uses Weather Underground API to prevent watering when windy, rainy, or too cold. Signup for a free developer account here; Has a built in web interface that you can access from any browser device on your local WiFi network; Manual control page lets you trigger any zone from your phone’s browser to facilitate sprinkler adjustment and testing.”