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Writer's pictureTechnical Tamizha

How to make Obstacle Avoiding + Line Following Car

Updated: Nov 10, 2021

Line Follower And Obstacle Avoiding Robot using Arduino, IR Sensor and Ultrasonic Sensor


Hew guy's ,here I will show how to make Obstacle avoiding + line follower with simple steps.


If you have any trouble comment or contact me in Instagram : @technical_tamizha_official




Components :

Arduino UNO

Ultrasonic sensors

L298n Motor Driver

IR Sensor x 2

Car chassis

4 x Bo motors & wheels

Male to Female Jumper Wires

2 x 18650 battery & Holder






Watch the tutorial video






  • Place all the components in the Acrylic Sheet

  • Connect all the components - refer circuit diagram

  • Upload the program after completion on circuit connection

  • Screw the Potentiometer to your own Value (If it nor work's well)

  • Now make a line with sellotape and start testing your project

If you have any trouble comment or contact me in Instagram : @technical_tamizha_official


Note : when it detects object it will move right delay(300) , left(delay 400) ,then left(200) it will returns to it path.Delay is set as per my drawn path (black line) ,for you if it not go back to it's path just change the delay time.


Circuit Diagram :



Program & Circuit Diagram :




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