Here is a cool robot that can draw with a pen on paper whatever your draw on your tablet. Line-us is an internet connected robotic arm that mimics your motion as you draw on your tablet. You can use it on any writable surface, send messages to friends, and receive drawings from other people.
According to developers, Line-us is compatible with Scratch, Arduino, Raspberry Pi, and Python. Line-us works with iPhone, iPad, Android, Mac, and PC platforms. Expected to ship in October.[Source]
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