In this video, I’ll be showing you how to build your own Arduino based obstacle avoiding robot car. The car uses a servo mounted ultrasonic sensor to detect objects in front of and on either side of the car and an L293D DC motor driver shield to drive four geared motors, one on each wheel. An Arduino Uno underneath the shield controls the motor shield, ultrasonic sensor, and the servo.

The car drives itself forward until an object comes within the range of the sensor. The car then monitors the object until it is within the minimum distance and then stops moving. The servo is then used to turn the ultrasonic sensor left and the right, taking distance measurements in each direction. The car then decides which direction to turn based on which side has more distance available to move, then turns and continues on until the next object is detected. If both sides are blocked, the car will turn around and drive back out the way it came.

Full step by step written guide along with print files & code - [ Ссылка ]

Components Required & Purchase Links
• Arduino Uno – [ Ссылка ]
• L293D Motor Driver Shield– [ Ссылка ]
• Micro Servo – [ Ссылка ]
• Ultrasonic Sensor Module – [ Ссылка ]
• 4 x Geared DC Motors & Wheels – [ Ссылка ]
• 9-12V Battery Pack
• 8 x M3 x 15mm Socket Head Screws – [ Ссылка ]
• Ribbon Cable – [ Ссылка ]
• Header Pins – [ Ссылка ]

If you've got any suggestions for future Arduino or electronics projects, let me know in the comments section.

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