Thinking of making robots, you might come up with ideas such as line tracking, obstacle avoider, anti-drop Robot, environment monitoring Robots, etc. But what we are going to make today, is a robot that follows an object, relentlessly. The basic function of this robot is simple: it follows you. It goes forward as you go forward; when you stop moving, it stops as well.I used an Ultrasonic range sensor to identify the moving direction of the object. You can also add more number. The minimum number that will do the job is one