Abstract:
In the "New Normal" which means normal activities in pandemic time, people need to work outside and other activities. In term of study activities especially in the classroom, a system that can effectively spray disinfectant to the classroom automatically need to be made. This study aims to design a system that can spray disinfectant automatically based on Arduino UNO. The device will spray the classroom automatically following the class timetable. The problems that need to be solved are how to design an automatic disinfectant sprayer based on Arduino UNO, how it will work, and how much it will cost. This study will not include how to control the water pump, what kind of disinfectant is applied, how to use the Arduino UNO, and unscheduled class spray.