This document summarizes a student project to build an obstacle avoiding car using an Arduino microcontroller. The car uses an ultrasonic sensor to detect obstacles in its path and changes direction to avoid collisions. It consists of an Arduino Uno, motor driver, ultrasonic sensor, DC motors, and power supply. When an obstacle is detected, the ultrasonic sensor measures the distance and sends a signal to the microcontroller, which then controls the motors to divert the car around the obstacle. Potential applications include mining vehicles, driverless transport systems, and autonomous cleaning robots. The project provides an opportunity to develop mechanical and electronics skills while gaining experience in robot construction.

1. WELCOME

2. Government College of Engineering
Karad
Department of Mechanical Engineering
1st year
Project title-
“obstacle avoiding car”
Under the Guidance of Prof. Krishna Alsundkar
Presented by-
Urvela Mohite

3. Obstacle avoiding car using Arduino

4. Index
Introduction
Components
Circuit Diagram
Working
Application
Advantage and disadvantage

5. Introduction
 Obstacle avoidance robot is capable of detecting an obstacle in its path.
 It can avoid the obstacle on its own by changing its direction. Principle: Proximity of obstacle is detected
 using IR sensors and path is adjusted suitably.
 Its major application is in Automation of vehicles.
 The main scope of project is to automatically changing the direction of robotic vehicle as required whenever
any obstacle comes on its way.
 Here an ultrasonic sensor is used which detects the presence of any obstacle and sends the signal to
microcontroller which changes the direction of the robot.

6. Components
 Arduino Uno
 Motor Driver L293D
 CSR04 Ultrasonic Sensor
 DC Motors
 Servo motor
 Power supply

7. Circuit diagram

8. Working
 In Obstacle avoiding robot,
 there is a sensor that is known as the ultrasonic sensor. Which has the capability to measure the distance in front of the
sensor.
 In the below paragraph we will know how does the sensor work. This obstacle-avoiding robot using Arduino Uno works as a
distance measurer.
 An ultrasonic sensor has two parts one is a transmitter and another is the receiver that is known as a trigger and echoes.
 The trigger is the transmitter part and transmits the ultrasonic wave.
 Another part that is receiver an echo receive that transmitter ultrasonic waves transmitted from the trigger.
 Now we calculate that in how much time the ultrasonic waves return back to the receiver and divide by 2 because the time
travel is double.

9. Application
 Obstacle Detection for a Mining Vehicle.
 Driverless vehicles running along beams.
 Obstacle detecting system for a motor vehicle.
 Autonomous cleaning robot.

10. Advantages and disadvantages
 Advantages:
 Whenever robot senses any obstacle automatically diverts its position to left or right and follows the path without human
guidance
 The programming of the microcontroller is easy.
 It is a low cost circuit.
 Disadvantages:
 It is time consuming project.
 It is use for short distance only.
 It is not recommended to keep the range very long because this would cause the ROBOT to keep moving forward and
backward as it senses any obstacle, even far away from
 It is not in human control

11. Conclusion
 It gives on an opportunity to test his mechanical and electronics and
programming skills.
 Obstacle Avoidance Robotic Vehicle project also provides robot construction
experience to beginners.
 This technology has application everywhere from industry to home appliances all
that is required is to implement it correctly to get the best out of it.

12. Thankyou