Radar was developed as a method of detecting enemy aircraft in World War 2. Along with the developments in technology, these days it is used in a wide range of sectors. Since the last few decades, there have been significant advancements in the use of radar technology. In this project, we have designed an Arduino radar using Ultrasonic Sensor for detection of Targets and measuring Range. An Arduino microcontroller makes electronics more discipline. This Arduino radar project aims to achieve a radar system prototype based on an Arduino board that detects stationary and moving objects. The radar system has different performance specifications, and it is also available in a variety of sizes. Distance measurements and Target detection can be visualized by Processing application. Processing application is visual arts-based software for learning to code.