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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 …

Arduino weather station project

This tutorial will show you how to take temperature readings using the Freetronics temperature sensor and an Arduino Uno. Note that there are two different module types: the temperature sensor …