My objective is to push a button on one arduino, and have this turn on an LED on another arduino wirelessly. The arduinos will be 50 miles away from eachother hence wifi seems the most efficient connectivity option.
I have found lots of resources on controlling arduinos through web clients however cannot find anything on just direct communication between 2 modules over wifi.
If possible it would be great to have as quick as possible response time as possible, so the push button can be pressed to give a succession of flashes on the receiving arduino.
I will be preferably be using the small cheap wifi modules off ebay as yuns work out a bit too expensive for this hopefully cheap project.
Any help or pointing in the right direction would be great.