How to open a door?
My working area is quite secured, everyone needs access before they enter to office, which we need to scan our badge on a sensor then sensor will detect if you are authorized to enter the door. On the other way, you only need to push a button besides the door for exiting the office. Every entrance are embedded with this access base sensor, scan badge to enter and push button to exit, it included the door to wash room. However, one of the door is having problem recently, where we can scan our badge to enter, but the button was loosen and missing, therefore we couldn’t go out but only can go in. Well, this will not bother me if I don’t use the door, but it is the closest exit for me to go to toilet, actually this creates a lot of trouble for us and everyone is waiting contractor for getting it fixed. This afternoon, I saw someone can go out from that door without the button fix, so that I am curious with that and fortunately I know someone and asked him, and the secret is hidden ...