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Best of Make: Volume 2 by The Editors of Make:

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JOIN THE ROBOT UPRISING

BUILD

HOW TO CoffeeBots

Written by JUDY AIME’ CASTRO

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Nate Van Dyke

Build a simple, programmable robot with personality that’s approachable for all ages.

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Note: The 10KΩ resistor is matched to the photoresistor and the ambient light. The value of 10KΩ is suitable for a wide range of photoresistors and indoor lighting conditions. If your coffeebot doesn’t seem responsive outdoors or in a bright room, replace the 10KΩ resistors with 1KΩ resistors. You may have to experiment with different values to suit your conditions.

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