My brother is addicted on small funny games so he decided to build a four in a row game. The game is controlled by a PIC microchip 18F252 controller and you can play against one of your friends, while the PIC keeps track of games won and who's turn it is. I must say I am very pleased with the finished result.
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It is reds turn to place the "ball", it is random who gets to start the game.