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Distance Measurement using Ultrasound


 This Project uses Ultrasound to measure distance. Measured distance is displayed on LCD.

You can use this digital output data in making many interesting projects such as accident proof vehicle or Robots, object identifier,  Sonar (detection of objects under water) etc.

distance measurement using ultrasound. Uses Arduino UNO, 2X16 LCD, Ultrasonic sensor HC-SR04

Parts used:

a) Arduino Controller Board

b) Ultrasound Module HC-SR04

c) 16X2 LCD

d) 10K Variable Resistance

Download C-Programme to be uploaded in Arduino UNO Board.

   Sound is a mechanical vibration transmitted by an elastic medium. Ultrasound are of frequencies greater than 20,000 Hz. Human can only hear approximately between 20 Hz and 20,000 Hz.

   The speed of sound travels depends on the medium which it passes through. In the air speed is approximately 345 m/s, in water 1500 m/s and in a bar of steel 5000 m/s. So we can use ultrasound and by calculating Time we can find distance. This type of range finding is also called Sonar. Sonar works similarly to Radar. To measure the distance of a sound ravelled, it needs to be reflected.

distance = time  X  velocity.

         Distance Measurement using Ultrasound

In this project you will need Transducer and Sensors for Ultrasound Transmission and Detection. One such Transceivers is HC-SR04 Module. These devices typically transmit a short burst of ultrasonic sound toward a target and detect sound back to the sensor. Beside this you will need Arduino Board and 16x2 LCD Display.

If you are new to Arduino, Please read our post categorize on Arduino Projects.

Circuit diagram of distance measurement using ultrasound, HC-SR04 sensor, 2X16 LCD

Distance Measurement using Ultrasound Circuit Diagram

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