Ultrasonic Sensor Tutorial With Deshbot

by devkrishnavhora in Circuits > Arduino

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Ultrasonic Sensor Tutorial With Deshbot

This project demonstrates how to measure the distance between an object and an ultrasonic sensor using an Arduino Nano. The HC-SR04 ultrasonic sensor measures distance by transmitting ultrasonic sound waves and detecting their echoes.

Supplies

Deshbot Shield

Arduino Nano

HC-SR04 ultrasonic sensor

Pin Connections


HC-SR04 PinArduino Nano

VCC - 5V

GND - GND

TRIG - A3

ECHO - A4

Working Principle


The ultrasonic sensor sends out high-frequency sound waves through its transmitter. When these waves hit an object, they reflect back to the sensor.

The sensor measures the time taken for the sound waves to return. The Arduino Nano uses this time to calculate the distance between the sensor and the object.

The calculated distance is displayed in centimeters on the Serial Monitor of the Arduino IDE.

Software Requirements

  1. Arduino IDE
  2. Arduino Nano board support
  3. Serial Monitor

Applications

  1. Obstacle detection in robots
  2. Distance measurement systems
  3. Automatic parking systems
  4. Water-level monitoring systems
  5. Smart dustbins
  6. Object detection projects


Downloads

ultrasonic_tutorial.ino

Conclusion


This project demonstrates how to interface an HC-SR04 ultrasonic sensor with an Arduino Nano to measure distance. It introduces ultrasonic sensing, time measurement, and distance calculation, providing a foundation for robotics and automation applications.