Design and build obstacle avoidance robot by using Arduino Uno R3

This robot is able to read the distance of objects or obstacles on the front, right and left in accordance with the distance that has been set. In order for the robot to read the obstacles on the front, right and left, the robot is paired with HC-SR04 sensor combined with a Mini Motor Servo Pro SG90 RC that is useful to move the sensor HC-SR04. Important main series of obstacle robots are Arduino Uno R3 Microcontroller that functions as a robot brain and Adafruit Shield L293D Motor Driver that serves as a supporter of DC Motor crusher. If the robot is stuck in the center of the front-right-left, then the robot will take a long time to get out. The design of the obstacle avoidance robot includes three things: mechanical systems, electronics, and Arduino software for programming robots. The language used in robot instalation is the Arduino programming language. In the design of this robot will be seen aspects that can be considered as the development of robots