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Anonymous Coward writes "A calculator enthusiastic has managed to allow TI-83 Plus and TI-84 Plus graphing calculators to connect to the Internet with the help of an Arduino board. It is called Global CALCnet 2.2 and there is already a chat program demonstrating it. Multi-player games for gCn such as a Scorched-Earth clone are currently in the works. Maybe in the near future we will be playing some variant of Ztetris against our friend on the other side of the world?" Link to Original Source
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