Although not a prime example of time saving automation, I wanted more from my sprinkler timer when I was seeding my lawn so I used a raspberry pi and a 4 channe

Although not a prime example of time saving automation, I wanted more from my sprinkler timer when I was seeding my lawn so I used a raspberry pi and a 4 channel relay switch to schedule my sprinkler time with cron jobs. This way I could have the sprinklers come on more times a day than my old timer would allow. Now I use it to change schedules based on seasons. I also made it so I could turn on a single zone for 1 minute from my phone to make troubleshooting leaks in the spring easier. https://github.com/callahanrts/sprinklers https://github.com/callahanrts/sprinklers