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How the parts work, the numbers that matter, and the mistakes to avoid.

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Sensors7 min readHow an ultrasonic sensor sees, and when it does not

Learn robotics by building. Try every project in the simulator, then build it for real.

Projects First steps Robot cars With sensors Lights and sound Servos and mechanisms

Lessons Start here Electricity Arduino Programming Modules and parts Robots

Market Kits Boards Motors and drivers Sensors Buttons and input LEDs and sound

Articles Components Sensors Power Tools and workshop

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