Introduction
Chapter 1: The Motion-Activated Critter Cam
Chapter 2: The LEGO-Compatible Laser
Chapter 3: The Laser Security Fence
Chapter 4: Morse Code Transmitters
Chapter 5: Infrared Message Transmitters
Chapter 6: The Automatic Insect Trapper
Chapter 7: The Motion-Sensing Radar
Chapter 8: The Tower of Eratosthenes
Chapter 9: Hacking LEGO Light Bricks
Chapter 10: The Flickering Fireplace
Chapter 11: The Laser Light Show
Chapter 12: The Infrared Thermometer and Cannon