Hello guys. My name is Lavya Gaonshindhe, and I study in class 7th. Today I have made an Automatic Door Opener. It uses an Arduino UNO board. The Arduino board takes a signal from the Ultrasonic distance sensor. Then, it controls a servo motor which will be attached to the door in such a way that, when the motor spins, the door opens.
Here is a picture of the following:
