I started a project earlier this year to build a remote controller for my live well using wifi. This was done by building a custom PCB with a micro controller that had wifi allowing me to use my iPhone to set and control on/off time. You can view the project here:
http://old.charlestonfishing.com/forums/Topic/Posts/181487?pagenum=1&archived=0
I have just finished version 3 that now uses bluetooth communication on the iPhone and/or Apple Watch. Using the same PCB board, I was able to switch from wifi to bluetooth…the watch makes it SO much easier to use! Below is a quick video demonstration