@thesis{thesis,
		author={NAFI HASAN  AHMAD},
		title ={RANCANG BANGUN PENDETEKSI GERAK PADA PINTU 
RUMAH SEBAGAI PERINGATAN BAHAYA PENCURI
BERBASIS SENSOR ULTRASONIK},
		year={2019},
		url={http://eprints.stta.ac.id/2207/},
		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}
		}