Recommended for Middle School through High School.
A shell game is a contest in which a person hides a small object underneath one of three nutshells, cups, or thimbles, and then rapidly shuffles them about on a flat surface. The spectators must pay close attention during the shuffling process in order to try and guess the final location of the hidden object. It is typically a sleight-of-hand swindling game. In this project, your challenge is to build a robot to play the shell game with you. The robot will act as the spectator, while you will hide a magnet under one of three walnut shells. Then the robot will use a Vernier Magnetic Field Sensor to determine the location of the hidden magnet.
In this project, you will design and build a mobile robot for pinpointing the location of a hidden magnet. The magnet should be hidden under one of three identical objects, such as walnut shells. The walnut shells should be laid out in a line so that the robot can drive by the shells while measuring the magnetic field of the area using a Vernier Magnetic Field Sensor. The location of the hidden magnet will be determined by feedback from the sensor of the strongest reading. Your robot should return to the location of the hidden magnet and give an audio indicator.
Sensors and Equipment
This project/activity features the following Vernier sensors and equipment.