Sistem Pencegahan Pencurian Menggunakan Papper Spray Di Pintu Rumah Kos Berba…

The theft prevention system using papper spray on the door of the arduino uno-based boarding house is a tool that aims to prevent and minimize theft at the boarding house or in homes also gives a deterrent effect to the thief because it uses chili liquid. This tool works automatically according to the hours that have been set on the RTC DS3231 and the battery becomes a backup power supply for t…