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Tri-Color Animated LED Cube Lights Up the Night

Tri-Color Animated LED Cube Lights Up the Night

Tri-Color Animated LED Cube Lights Up the Night: Using bi-color LEDs, a little multiplexing, and a microcontroller, green, orange or yellow can be light up individually at any of the 27 locations on the cube. Each of the bi-color LED’s physically contain two LEDs inside of them with a common cathode. If both sides of the LED are on, the LED appears to glow yellow, making a third color.