Interfacing Ultrasonic Sensor HC-SR04 with Arduino Uno R3
Here we come with the topic Interfacing Ultrasonic Sensor HC-SR04 with Arduino Uno R3. After getting the interfacing successfully lots of projects window will be open for us. In my earlier post we saw that how to interface LM35 analog temperature sensor with Arduino at “Arduino based digital thermometer”. So to know the Interfacing Ultrasonic Sensor HC-SR04 with Arduino Uno R3, first we have to know about What is an Ultrsonic sensor? And how it work? HC-SR04 module: The ultrasonic sensor also known as distance measuring sensor provides 2cm to 4m of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only four pins that you need to worry about on the HC-SR04: V CC (Power), Trigger, Echo, and GND (Ground). Interfacing this Sensor with Arduino is easy. Apparatus required : – Arduino Uno R3 (ATMega328P) with Arduino Cable Ultras...