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How to Interface Arduino with HC-SR04 Ultrasonic Sensor | Project CIRCUIT & CODE | Measure Distance
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Tutorial on Ultrasonic sensor HC-SR04 - Connections, interfacing & coding with Arduino
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Using the HC-SR04 Ultrasonic Distance Sensor with Arduino - Everything you need to know!
In this Arduino Tutorial you will learn how to use the HC-SR04 Ultrasonic sensor. It can measure distance from 2 cm to 4 meters with a ranging accuracy up to 3mm. The working principle of this module is quite simple.
In this tutorial you will learn how to connect the ultrasonic sensor HC-SR04 OR ping OR range sensor to Arduino along with the coding part ! Hey Guys! We are back with the Arduino Series, in this series we are going to teach you every basic things about Arduino. This video is all about programming Arduino, How to program Arduino? How to interface Ultrasonic sensor with Arduino? What is an Ultrasonic sensor? and all other stuffs.
The HC-SR04 Ultrasonic sensor is a versatile device that has become a staple in robotics projects. This inexpensive component measures the distance between itself and the nearest solid object using pulses of ultrasonic sound. It has reasonable accuracy “out of the box” and can be made even more accurate with one additional component.
In this tutorial, we’ll learn how to use the HC-SR04 with an Arduino. As it turns out there is more than one way to do this, so we’ll examine them all. You can apply the same knowledge to use the sensor with other microcontrollers or with a microcomputer like the Raspberry Pi.
We’ll start by learning how the HC-SR04 works and how its input and outputs function.
Next, we’ll connect it to an Arduino and write a simple sketch to make it work. I'll show you the test arrangement I set up on my workbench and we’ll use that to measure the accuracy of the sensor.
Then we’ll move on to some improved code using a “code library” called “NewPing”. If you are new to the Arduino and have not used a code library before then this is an excellent opportunity to learn how to increase your programming expertise. Actually, we will end up using three code libraries by the time the video has finished and I’ll show you two different methods of doing this.
While the sensor is reasonably accurate there is room for improvement, as our bench testing will confirm. I’ll show you how you can add an inexpensive temperature and humidity sensor to increase the accuracy of the HC-SR04 by compensating for the change in the speed of sound due to the ambient temperature and humidity.
We will also see how the HC-SR04 can be used in “3-Wire Mode”, eliminating one connection to the Arduino without sacrificing performance. This is great information if you need to save an Arduino I/O pin for another application.
And finally, we will see how we can use multiple HC-SR04’s in the same circuit, a common requirement when building a robot.
If you like it then don't forget to share this video to others who wants to learn about Arduino and want to make some cool projects. In this video, lets connect the HC-SR04 Ultrasonic sensor to our Arduino and learn how to code the ultrasonic sensor. We also learn how to run the sensor.
The ultrasoinc HC-SR04 sensor can be used to make obstacle avoidance robots, or ultrasonic radar or other ultrasonic arduino projects.
This tutorial for the HC-SR04 sensor should teach you how to code easily and build your arduino projects.
