Kunci Pintu Otomatis Berbasis Mikrokontroler Atmega 8535

Abstract

Lock the door becomes very important for the safety of a home. Many types of home or room key locks on the market but still so easily when anyone wants to harm me to go into the house or room with ease. Method for making this automatic door lock using 8535 Microcontroller Atmega with electronic circuit the workings from the system very easy to use by simply entering a password on the keypad then the automatic door of the house or room will open by itself. With this tool system we no longer need to carry a key or door room when want to leave home. As for the parts of the instrument are the automatic door lock: Microcontroller Atmega 8535, 3x4 Keypad, Push buttons, limit switches, solenoid, Optocoupler, Relay, Transistor. After making tools microcontroller based automatic door locks, it can be the result of the tool's ability to safety the house from evil intentions who want to steal, because not everyone who can enter into the house or room and just who understand the working of the system is the tool that can be entered into houses and room.