PERANCANGAN ALAT PENGUKUR TINGGI BADAN DIGITAL DENGAN METODE SONAR

Abstract

Sonar is an abbreviation of (sound of ranging), which means the technique of spreading the sound for navigation and communicating or detecting other ships. Sonar can be applied to measure the distance of an object by reflecting ultrasonic waves to the object and then captured through the reciver. The ultrasonic wave is reflected by the SR04 sensor and uses Arduino Uno as a microcontroller where its distance is calculated. LCD is used to display measurement results so that it is easier to take height measurements. Arduino is a device that can be programmed and connected directly with an ultrasonic sensor used for measurements. The ultrasonic sensor is placed on a pole as high as 200 cm, and the distance of 200 cm is used as a benchmark measurement. Measurement using manual and digital can work well, but using digital level measurement speed is better than measuring using a manual.