Radar Using The Arduino Board, Ultrasonic Sensor, Servomotor, and the Processing Development Environment" is a project that utilizes an ultrasonic sensor and a servo motor to create a radar system. The project is built using the Arduino board and the Processing development environment, which is a programming language and IDE for creating interactive graphics applications. The ultrasonic sensor is used to measure the distance between the sensor and an object, while the servo motor rotates the sensor to cover a 180-degree area. The processing development environment is used to display the radar system's output in real-time.