Our project name is Obstacle detection and ranging using Arduino. The components that are used-Arduino Uno, Ultrasonic Sensor, Servo Motor, Jumper Wires, Arduino IDE, Processing IDE. The main aim of this project is to detect the obstacle and it's range if the obstacle is within the range of 5cm then in the processing ide it will show a red portion. The red portion indicates that there is a presence of an obstacle and if there is no obstacle then it will show green portion.