Robots & Electronics
Sensors, motors, lights and circuits: how robots notice the world and decide what to do.
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What Is a Robot?
Find out what makes a machine a real robot, and learn the three-step secret that every robot follows.
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How Robots Sense the World
Meet the sensors that let robots notice light, touch, distance, sound and temperature, and match each one to a human…
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Light It Up!
Build your very first circuit with a coin battery and an LED, and learn why the electricity needs a closed…
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Switches Are Decisions
Make a paper-and-foil slide switch for your LED, and discover that a switch works just like an if in code.
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Motors, Wheels and Gears
Find out how robots roll, steer and turn on the spot using two wheels, and how gears make things slower…
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Follow That Line!
See how a robot with two light sensors can follow a dark line using four simple rules, then test the…
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Don’t Bump Into Things
Teach a robot to spot obstacles with a distance sensor and steer around them, then test the rule in Python.
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Program Beep on a Grid
Plan routes for Beep with forward, left and right commands, then find and fix a bug in a program that…
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Robots at Work and in Space
Meet robot vacuums, factory arms and a Mars rover, and find out why a robot far from home must make…
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Design Your Own Robot
Invent a robot of your own, choose its sensors and actions, and write its rules as a flowchart.