LED Matrix Bike Safety Backpack using arduino

Biking around cars can be a frightening thing, and staying visible at night is crucial for your safety. This tutorial will teach you how to make a custom LED Matrix Backpack that is much larger and brighter than traditional rear bike lights. Parts You'll Need: Individually-addressable RGB LEDs Arduino Pro Mini (or any Arduino, this one is just conveniently small.) Note that if you use the Pro Mini, you will ...

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