I am building a laser tag system with an Arduino in each gun.
I want the guns to be linked during game play for many different reasons:
- Start/Stop game
- Nearby teammates
- When a flag is captured
I don't know how to link the guns to one another during game play because the field may be large (e.g. a park). Wifi has too short of a range, cellular would cost, linking to a phone via bluetooth would drain the phone battery (and require each player have a smart phone to play).
Can you think of another way to link the guns? Radio transmitters?