I am new to arduino and I am planning to do a personal hobby project which involves 2 boards communicating wirelessly. I plan to use the Yun board but i am not sure whether this wireless communication between 2 board is possible.
Another requirement is that one board send signal when i push one button, then the other board responds if it is near n what is the distance.
Is this possible? What are the sensor(for long distance measurement) and wireless communication; and board (YUN or other) do I need?