A Security Radar System on a Semi-Autonomous Car based on the Ultrasonic Sensor, Servo Motor and Arduino Uno

This research aims to develop a RADAR system using an ultrasonic sensor (HC-SR04), servo motor (SG90), and Arduino UNO. This RADAR system can detect objects in the vicinity and display information about the distance and position of the object in the Arduino IDE and Processing program. The ultrasonic sensor is used to measure the distance between the object and the radar system. The servo motor functions as a device that moves the ultrasonic sensor so that it can detect objects in its surroundings. Arduino Uno is used as a control system that regulates the movement of servo motors and processes data from ultrasonic sensors. The method used in this research is experimentation by testing the radar system at different distances. The test results show that the developed radar system can detect objects with a maximum distance of about 30 cm with an accuracy rate of 97.5%. With the use of relatively cheap and easily available components, this radar system can be used as an effective and efficient alternative for detecting objects in certain environments.