When we carrying something and walking out of office, it is not convenient to press the button to open the door. How can we make the door smarter that recognises people and open the door automatically when someone is going out of office?
We made a door opening device which is very responsive to people. When people (even pets) walking out of office, the door will unlcok and re-lock automatically. This frees us from pressing the button when we holding something.
2. Infrared human sensor