Abstract :
Technology at this time has developed rapidly, one of which is a home
security system, CCTV cameras are often used as a monitoring tool for security.
Just using a CCTV camera is not enough to make an early compilation that goes
through the main door of the house. Then additional tools are needed that can be
ordered directly to the owner of the house if there is an indication of a thief, that is
by supporting the movement at the door of the house and sending messages of
renewal.
The sensor used is the HC SR04 ultrasonic sensor as a motion tracking
device on the main door of the house. In this study an early inspection system was
designed that can move the movement and delivery of messages containing the
dangers of SMS (Short Message Service) which is controlled by the microcontroller
and GSM module as the sender of the message.
The results of the study prove that the tool can detect the movement of doors
and can send SMS requesting danger by opening the door 2,792º with a reading
error value of 0% at a range of 2- 29 cm