Contact-Less Hand Disinfection Using Arduino and UV Lighting

In order to lower the risk of illness transmission among people and among members of the medical community, hand cleanliness is more crucial than ever. You should wash your hands numerous times in the afternoon, as has been advised since the COVID pandemic started. In addition to reducing the transmission of germs from one individual to another, hand sanitizer eliminates pathogens that are already on our hands. The COVID-19 pandemic has increased interest in contactless disinfection methods. The device described in this paper uses an Arduino and UV illumination to disinfect hands without physical contact. The proposed system uses an ultrasonic sensor to identify the user's hand and turn on the UV-C lights for disinfection. The system is made to be portable and is simple to set up in public locations like businesses, hospitals, and airports. The use of hand sanitiser can help us fight COVID-19 virus effectively and reduces the usage of water. Numerous pathogens, including bacteria, viruses, and fungus, are successfully eliminated by the system's UV-C radiation. The device also has a special feature of automatic refilling of the sanitiser provided and alerting the user via messages with the help of sim 900 GSM module. The device offers a 95% disinfection rate in less than 10 seconds, making it a quick and effective hand hygiene solution. The system can be easily controlled and customized thanks to the use of Arduino because of its cheap cost and simplicity of use. The proposed method could help people practice better hand hygiene and stop the transmission of infectious diseases, which makes it a valuable weapon in the war against COVID-19 and other viruses.