This paper explains the functionality of a Smart classroom. The room consists of a home gateway and all the IoT devices like a smart window, laptop, camera, door, and fan are connected to it. An RFID reader is integrated into the door. When the student/faculty scans the student id card (RFID Card)/faculty id card the door automatically opens and the student roll number/faculty id number is stored in the server. The laptop is the admin laptop and all the IoT devices in the room can be controlled and monitored like turn on/turn off the fan, open/close the window, turn on/turn off the camera. The door is connected to the laptop which makes the opening and closing easier when a student/faculty forgot to carry the ID cards. There is a smartphone integrated into the network where the Head of the department can monitor the classroom from anywhere. The camera helps to check whether the classes are functioning properly on time.