RANCANG BANGUN AKSES PINTU KELUAR MASUK MENGGUNAKAN PIN BERBASIS MIKROKONTROLLER AT89S52
DOI:
https://doi.org/10.22441/jte.v4i1.743Abstrak
Perkembangan teknologi semakin maju, sehingga manusia berusaha sekeras mungkin untuk merealisasikan alat – alat pendukung untuk mendapatkan kemudahan dan kenyamanan. Perkembangan teknologi yang seperti ini tidak hanya pada dunia industri saja, melainkan diberbagai bidang.
Pemikiran untuk membantu mengatasi masalah keamanan pada suatu ruangan yang selama ini masih banyak aktivitas pencurian saat pemilik rumah tidak berada ditempat. Oleh karena itu pada penelitian ini dibangun sistem yang dapat mencegah pihak yang tidak berwenang untuk masuk ke dalam dan keluar dari ruangan tersebut, maka digunakan PIN ( Personal Identification Number ) sebagai kode akses untuk dapat melewati ruangan.
PIN yang terdiri dari 4 angka digunakan sebagai kunci untuk dapat memasuki ruangan atau gedung. Sistem pengendali utama dari peralatan ini adalah mikrokontroller AT89S52 yang berfungsi sebagai pembuat keputusan. Penekanan nomor PIN pada papan kunci ( keypad ) merupakan sinyal masukan yang kemudian diolah oleh mikrokontroller untuk dapat mengaktifkan rangkaian driver motor DC dimana perputaran motor DC ini mengakibatkan membuka dan menutupnya pintu suatu ruangan.
Kata Kunci : Pintu, Mikrokontroller, Motor DC, Keypad
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