This document provides a progress report on developing a radar detector using Arduino. The goal is to create a rangefinder device that can measure distance from 3cm to 40cm using an ultrasonic sensor controlled by a servo motor. The theoretical approach, hardware used, software used, circuit diagram, code for Arduino and Processing 3, and current progress are described. The device is able to detect distance and the angle of detection is planned to be increased by adding a second ultrasonic sensor. Future additions may include connecting to a smartphone via Bluetooth and developing a mobile app.

1. RADAR
DETECTOR
USING
ARDUINO
PROGRESS
REPORT

2. What Are We Trying To Achieve?
We are basically developing a rangefinder device which is explained below.
A rangefinder is a device that measures the distance from the target to the
observer, for the purposes of surveying, determining focus in photography, or
accurately aiming a weapon .
In this technical project, we make a simple radar using the ultrasonic sensor, this
radar works by measuring a range from 3cm to 40 cm as non-contact distance,
with angle range between 15˚ and 165˚.The movement of the sensor is
controlled by using a small servo motor. Information received from the sensor
will be used by “Processing Development E”

3. Theoretical Approach:
(1) Using IO trigger for at least 10us high-level signal
(2) The Module automatically sends eight 40 kHz and detect whether there is a
pulse signal back.
(3) IF the signal back, through high level, time of high output IO duration is the
time from sending ultrasonic to returning.
Test distance = (high level time × velocity of sound (340M/S) / 2.

4. Hardware For This Project
(1)Arduino Board UNO Model.
(2)Ultrasonic sensor HC- SR04.
(3)Servo Motor tower pro micro servo 9g.
(4)Breadboard and Jump Wires.

5. Software Used:
● ARDUINO IDE
● PREPROCESSING 3

6. Circuit Diagram
We connected the Ultrasonic Sensor HC-SR04 to the pins number 10 and 11 on
the Arduino Board.
TrigPin = 10.
EchoPin = 11.
And the servo motor to the pin number 12 on the Arduino Board.

8. Connections
• SERVOMOTOR:
• RED SLOT TO 5V
• BLACK SLOT TO GROUND
• YELLOW TO PIN 12 ARDUINO
• SONAR:
• Vcc TO 5 V
• GND TO GROUND
• TRIG TO PIN 10 ARDUINO
• ECHO TO PIN 11 ARDUINO

9. Arduino Ide:
• Ardunio uno micro controller board was connected with via standard Usb
cable.
• The program code were written in C complier based Ardunio Ide.
• Sensor and Motor input and output were assigned into the program.

10. PROCESSING 3:
• Serial output data of Ardunio contains present status of rotation angle and
measured distance by sensor in centimeter.
• These three serial output parameters were transferred to processing
environment software.
• With the help of java script coding a visual interface was developed and using
the serial o/p parameter from ardunio, real time visualization of the dual
radar was developed.

11. Arduino Code:

13. Processing 3 code

16. Our Progress
– Hardware collected
– Arduino code completion
– Processing 3 code under development
– Area of detection due to 1 sensor is compromised so installing a new sensor
Depending upon 2 factors
1. Bigger sweep angle
2. A second sensor coupled

17. Add Ons:
We are trying to add certain additional functionality to our project.
● Use of another Ultrasonic sensor to increase the sweep angle to 355˚ approx.
● Establishing a connection between Arduino through the use of bluetooth
transmitter.
● Get the output on our smartphone screen along with getting it on our
computer screen through the development of an mobile application built
through Android.

18. THANK YOU!