Rancang Bangun Sistem Kunci Pintu Digital Berbasis Arduino Mega 2560 (original) (raw)

Most doors still use manual keys that still have flaws like keys that are easy to duplicate, the small lock shapes make keys easily lost. Therefore, it takes a system that can replace the manual key function, one of which is to replace the manual key with password usage. This research provides an alternative solution by securing the door using a password that features a notification message to alert the owner of the house or room when there are people who do not have access to try to enter. The development done in this research is using keypad as input password. The method used in the development of this system is a prototype method where this method has seven stages of needs gathering, prototype building, prototype evaluation, coding system, system testing, system evaluation, and system implementation. This system uses Arduino Mega 2560 module equipped with microcontroller Atmega 2560 as main device and supporting device that used is GSM SIM800L, ultrasonic sensor and door lock solenoid. After passing several experimental tests it can be concluded that the system can run as expected.