Design and Development of NodeMCU Based Smart IoT Door System

In this technological world, the lifestyle of everyone changes day by day and people become busier. People wish not to waste even one minute apart from their careers. All people could not be able to access the entry door with a key in order to let the people in. The physically challenged people cannot maneuver a wheelchair into a position to either open the door or grasp the doorknob. It requires manpower to open the door. In addition to that, security is very important. This study purely based on security options. This methodology introduced the concept for opening and closing the door automatically with the help of IoT based on the command given by the user. The user will be able to see the person who is waiting outside the door. With the help of mobile app he/she will be able to open or close the door just by giving the commands. This concept works by PIR pulses. In normal time (owner presence) if people arrive in front of the door, then the owner will be indicated by the arrival of person through mobile app by message notifications. During security mode (owner absent) he/she will be alerted with buzzer sound for security purpose. The message from the owner can be visible on LCD. ESP CAM plays a major role for capturing the images of the person and sends it to owner continuously. So, the owner can able to know that the person easily. The foremost thing is that, it is fully operated with wireless operations and concerned person can only access it. It doesn't require any well-equipped techniques. It will give best result in future. This idea can be developed with more advancement in future. Then, the main advantage is, Security can be achieved in this ideology with the help of IOT. This can be handled only the person who has secured mobile app with IoT.