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  Ultrasonic distance sensor

In this lecture you will learn about how to measure distance using an ultrasonic distance sensor. This is a fairly sophisticated sensor that carries out a quite involved function when it comes to the physics of its implementation, however, as you will see, its application is as simple as it can be. You will also learn how to use a more advanced function of the Arduino language, the pulseIn function, through which you can time external events.


* HC-SR04 ultrasonic distance sensor.

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