Rancang Bangun Handsanitizer Otomatis dengan Sensor Suhu berbasis Arduino Uno

Abstract

Referring to the protocol designed to reduce the spread of Covid 19, each work unit implements the protocol in the general area of handling Covid 19, namely by promoting regular and thorough hand washing, and ensuring the availability of hand sanitizer. So this research was conducted aiming to produce a simple tool and work automatically only by measuring the temperature of the human body in measuring the specified temperature using the Arduino Uno-based DS18B20 temperature sensor. This type of research is research on making tools within the scope of Research and Development (Research and Development). The data is made based on the results of observations and experiments from the tool. The results of this study have been successfully designed on mechanical processes and automation systems in the working mechanism of the tool in the Design of Automatic Handsanitizer with Arduino Uno-Based Temperature Sensor.The working system of this tool is a temperature sensor and ultrasonic will take measurements where the temperature is between 31-36 normal body temperature then the tool will work and if the body temperature is above 36 body temperature is not normal then the buzzer will sound indicating that your body temperature does not meet the criteria for use of automatic hand sanitizer. Based on the testing of measuring instruments, the specifications obtained with the standard deviation value in the data above, namely 0,490856, the uncertainly value of the measurement results is 0,20391 with a total percentage of instrument error of 2,36 %.