This project was based on the Domain "Internet of things" with the help of The RaspberryPi 3 which is implemented in an office and consist of following module, In an office of a 3 story building Running down stairs every time to find the bathroom occupied became a common annoyance for everyone working in the office. So why not make a monitoring system so we can check if anyone is in the bathroom from the comfort of their working space.
RaspberryPi once connected to the network same as that of the office network can tell you who's inside the office with a detailed timeline of how long he was in his office as long as he is connected to office network.