The ultrasonic RADAR uses an Arduino UNO, ultrasonic sensor, servo motor, and 16x2 LCD to display the polar coordinates of detected objects. The ultrasonic sensor measures distance by emitting ultrasonic soundwaves and measuring the reflection time, while the servo motor rotates 180 degrees clockwise and counterclockwise to measure the angle. The Arduino calculates the distances and angles and displays them on the LCD.

1. Elecbits
Ultrasonic RADAR

2. Description
 Arduino UNO is Brain of this Project.
 Ultrasonic RADAR consist of few Components like HC-
SR04(Ultrasonic Sensor), SG-90(Servo motor), 16X2 LCD.
 Ultrasonic RADAR displays Polar Coordinates of Object(s) on LCD.
 Servo motor is responsible for 180° clockwise and Anti-Clockwise
Rotation.
 Ultrasonic Sensor measures distance of object from it.

3. Block Diagram

4. Working
 Ultrasonic RADAR works by measuring distance with Ultrasonic
Module and angle by servo motor’s feedback system.
 Ultrasonic Sensor first emits a burst of ultrasonic soundwave and
then this soundwave reflects back from object and piezo crystal in
Ultrasonic Module receives it and by measuring time between arrival
and departure of soundwave we can measure distance between
object and Ultrasonic sensor.
 Arduino UNO calculates Distances and angles and print it on 16X2
LCD.

5. arduino uno

6. ULTRASONIC SENSOR
Ultrasonic sensors works on a
principle similar to radar or sonar which
evaluates attributes of a target by
interpreting the echoes from radio
or sound waves respectively.
Ultrasonic sensors generate high
frequency sound waves and evaluate the
echo which is received back by the
sensor.

7. ARDUINO UNO

8. servo motor

9. servo motor

10. circuit diagram:

11. software results

12. SOFTWARES USED
• AVR STUDIO 4
• AVR LOADER V2.0
• PROTEUS DESIGN SUITE

13. Applications
1. Used to measure the obstacle distance.
2. This system used in automotive parking sensors
and obstacle warning systems.
3. Used in terrain monitoring robots.
4. Military surveillance.
5. Meteorologists use radars to track storms

14. Thank You