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Meowser: a laptop and Arduino for a led mineral cabinet March 30th, 2013 MEOWSER is a (M)ineral (E)lement Br(owser): a wooden display cabinet containing rocks and mineral samples with LED lighting controlled from a laptop computer. The laptop can display either the periodic table or a layout of the cabinets. When the user mouses over elements or minerals the appropriate lights in the wooden cabinet light up. An Arduino microcontroller serves as the computer – LED interface.