RANCANG BANGUN SMART DOOR LOCK BERBASIS ARDUINO DENGAN QUICK RESPONSE CODE DAN SMARTPHONE ANDROID

Smart Door Lock is the development of conventional or manual home door locks. The security system on the existing door lock is generally a manual security system in the form of a conventional lock or padlock. Conventional lock systems have the disadvantage that homeowners must always carry the key when leaving the house, and homeowners often lose and even forget to lock the door when leaving the house. Situations like this will certainly risk a crime of theft at home. In addition, the security system with a conventional key is prone to theft, because the perpetrators of the theft can outsmart the door of the house with only a wire and screwdriver. This research aims to implement Arduino Uno with QR Code and Android Smartphone, which produces a smart door lock for home security. This study uses Arduino Uno as the main controller, solenoids as door locks, and HC-05 as a liaison between applications on Android Smartphones and Smart Door lock devices. The system development method used is the waterfall method. The results of this study are the prototype "Design and Build Smart Door Lock Based on Arduino with Quick Response Code and Android Smartphone". Test results show that all hardware and software components can work well.