We took out an old controller and replaced it with a wireless device.
This uses a wi-fi connection with a full-control smartphone app. Our yard has 16 stations that can be individually controlled via the app. Each station can be separated or combined in the schedule.
The controller gathers weather information from local sites and will not water if either it will rain or the ground is too wet.
We have used this controller for 3 years and easily can recommend.