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Using an ultrasonic sensor with Arduino

In this tutorial, you will learn how to connect an ultrasonic sensor (HC-SR04) to an Arduino. An Ultrasonic Sensor is used to measure distance. It emits ultrasound at 40,000 Hz (40kHz) which travels through the …

Artboard 1arraymethods

JavaScript array methods

This tutorial explains how to use the following array methods in JavaScript: push() to append elements to the end of an array pop() to remove the last element from an array …