Obstacle Avoidance Robot using Arduino Nano

When powering up this robot will move forward. Also, the ultrasonic sensor calculates the distance to the front obstacle. In this case, if the front distance is less than or equal to 10cm, the robot will stop. Then, the servo motor is turned left side and right side and the  ultrasonic sensor receive the distance on both sides. Afterwards, the Arduino board calculates the side of the longest distance. Then, the robot turns to that side and moves forward. Also, this process is continuous.