Arduino for Beginners - 2022 Complete Course - Get the Distance from an Obstacle

The video tutorial explains how to use an ultrasonic sensor to measure distances. It covers setting up the sensor, defining digital pins, and programming the sensor to read data without using delays. The tutorial also includes creating functions to trigger the sensor and calculate distances using the pulseIn function. The explanation of the distance formula is provided, along with practical testing of the sensor to measure distances accurately.

What is the formula used to convert the duration to distance in centimeters?

Why is it important to use a double data type for distance calculations?

What practical considerations should be taken into account when measuring distance with the ultrasonic sensor?

How does the ultrasonic sensor behave when there is no object in front of it?