mBot 2.0: Seeing with Sound

In this lesson, students will learn that autonomous robots need to be aware of their surroundings when driving unattended to avoid any collisions with obstacles or persons. Students will learn that the mBot2 has a specific sensor for this action at the front and it is called the ultrasonic sensor. Students will learn that this sensor enables the robot to detect objects in its path using sounds that humans can’t hear – giving it the name (ultrasound).