CD Tugas Akhir
Perancangan Prototipe Alarm Keamanan Pada Pintu Rumah Menggunakan Relay
ABSTRACT
Prototype of Security Alarm on Home Doors Using Relays, this tool is made to
strengthen security in homes and private places that we want to protect, crimes that
often occur, both personal factors due to negligence in locking the house and there
are also factors that are done by the crime Therefore, this prototype is designed in
such a way as to prevent and reduce crime. This tool can detect the initial act of
crime
On the movement of the doorknob of the house ,Preventing the perpetrators of deadly
MCB crimes at home ,Movement when the door has been opened
The components in this prototype only use and utilize simple electronic components,
such as: limit switches, batteries, 5 foot relays, adapters, buzzers and also relay times
that function as time settings for the buzzer to be active.
Keywords: limit switch, relay timer, buzzer
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