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DIY Gyroscope Messenger As Christmas Gift

Csiko writes "The ingredients in this do-it-yourself Christmas project are a felt pen, a bunch of old CDs, an embedded microcontroller (MCU), some LEDs and a big portion of nerdism. While the gyroscope spins, the MCU controls the LEDs so that a writing appears in real-time. Nice project, but it definitely needs a nerd girlfriend to appreciate it."

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DIY Gyroscope Messenger As Christmas Gift

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The first version always gets thrown away.