Do you know how bats get around in the dark? Using echolocation, bats bounce sound waves off of nearby objects to find their way around in complete darkness. Through the Ultrasonic Sensor, you can experience this first-hand! In this project you will learn how to input a distance reading from an ultrasonic sensor and translate it into an output displayed on a LED bar graph and a tone played through a buzzer. Want to see more projects you could be creating every month?