Pembuatan Sistem Monitoring Pengukur Tinggi Badan Menggunakan Sensor Ultrasonik HC-SR04 Berbasis Android

Abstract

Height Measuring Equipment Using Ultrasonic Sensors and Buzzers is an instrumentation tool that functions to measure height to determine the development of a person's body. The purpose of making an android-based height measuring device is to find out the height automatically so that it can save time in measurement. The sensors used in the manufacture of this height measuring device are Ultrasonic Sensors of type HC-SR04 and Alarm Buzzer which are controlled by the NODEMCU ESP8622 Microcontroller and are equipped with the Blynk application in displaying the measurement data results. The method used in testing this height measuring device is a method of collecting data on five samples. The results of testing and application of this height measuring device obtained an average error of 0.852 % when compared to standard measuring instruments with a difference of 7 cm.