Using Sunrise and Sunset for Smart Lighting Automation

Hey everyone, I’m really excited to share my experience with setting up smart lighting automation using sunrise and sunset times. I recently installed a few smart lights around my house and wanted to make them automatically turn on and off based on the natural light cycle. It’s been a fun project, but I did run into a few challenges along the way!

Initially, I tried using the built-in sunrise and sunset commands in my smart hub, but I kept getting errors. After some research, I realized I needed to use the getSunriseAndSunset() function to fetch the correct times. Here’s a quick snippet of how I set it up:

groovy
// Fetch sunrise and sunset times
def localSun = getSunriseAndSunset()

// Set lights to turn on at sunrise
schedule(localSun.sunrise, {
lights.on()
})

// Set lights to turn off at sunset
schedule(localSun.sunset, {
lights.off()
})

This setup worked like a charm! Now, my lights automatically adjust to the changing daylight, which has been a huge convenience. I especially love how it adapts during different seasons when the sunrise and sunset times vary.

I also wanted to share a tip for anyone else working with time-based automations: always test your schedules with a small delay or offset. This way, you can ensure everything works as expected without any unexpected behavior. For example, I added a 15-minute buffer to make sure the lights don’t turn off too early on cloudy days.

If you’re looking to take your smart lighting to the next level, I highly recommend exploring sunset and sunrise-based automation. It’s a simple yet effective way to make your home more energy-efficient and comfortable. Happy automating! :sunrise: