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Armanda Putra/ JOJAPS – JOURNAL ONLINE JARINGAN PENGAJIAN SENI BINA
A. Hardware
1. PIR sensor
Sensor PIR (Passive Infra Red) is a sensor used to detect infrared rays from an object. PIR sensors are passive, meaning
that the sensor does not emit infrared rays but only receives infrared radiation from outside.
Figure 2. How it Works PIR Sensor
2. Servo Motor
Servo motors are one type of DC motor using a feedback system (feedback) in which the rotor position will be
communicated to the control circuit that existed at the servo. This motor consists of a DC motor, a set of gear,
potentiometer, and a control circuit. The potentiometer serves to determine the angle of rotation servo limit. While the
angle of the servo motor axis is set based on the pulse width of the signal sent through the legs of servo motor cables.
Figure 3. Servo Motor parts
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