This project is implementation of tic-tac-teo game on Arduino board. This game is multi-player and must be run on two seperated boards. The two boards can communicate with each other by XBee module from serial I/O. The simulation of the game is implemeted in Proteus application.
Here is a screenshot of the simulation environment:
Using pin number 21, you can choose your player mode. If you set this pin in HIGH voltage, you will be the beginner and X player. By setting this pin to LOW voltage, you will be O player.