A NOVEL HAND SANITIZER DISPENSER WITH ALARM BUZZER

Abstract

An automatic hand sanitizer dispensing machine is an automatic, noncontact, alcohol-based hand sanitizer dispenser, used in hospitals, worksites, offices, schools, etc. Alcohol is a solvent and is a much better disinfectant than liquid soap or solid soap, plus it does not require water to wash because it is volatile and evaporates immediately after application on hands. It has also been proven that 70% of alcohol can kill the coronavirus taken in hand. Here, an ultrasonic sensor senses the handheld near it, the Arduino UNO is used as a microcontroller, which senses the distance and the result when the pump hand is running to pump the sanitize.