Arduino – Ultrasonic Sensor
What is meant by the effectual angle in the ultrasonic sensor?
The object doesn’t need to always lie at the center line of the sensor. It may be present at some angle concerning the sensor center, this angle is known as an effectual angle in ultrasonic sensors.
What is the formula used for calculating the distance of an object by the sensor?
The formula used is distance is half times the speed multiplied by the time.
Distance =(speed × times)/2
What are the four terminals of the ultrasonic sensor?
The ultrasonic sensor has four terminals namely +5V, Trigger, Echo, and and ground(GND).
Arduino – Ultrasonic Sensor
Sensors are widely used for detecting devices by approximating their distance from the source. One such example of a sensor is the HC-SR04 ultrasonic sensor which uses the SONAR technique for the sensing purpose. The main feature of this sensor is to mimic the nature of bats and therefore predict the distance of objects without actually establishing contact with the device.
In this article, we will study how to design this ultrasonic sensor using the Arduino board and programming software. We will study the specifications needed for this sensor, and the methods and circuit diagrams used for designing this sensor. In addition to this, we will see the Arduino code written on IDE that will result in a sensor.
Table of Content
- Ultrasonic Sensor
- Technical Specifications
- Apparatus
- Working
- Circuit Diagram
- Arduino Code