Most card slots to work with a separate card, so the user gets an additional card pocket. Since every bank card today, Proton card, SIS card with a chip containing a unique identifier, it can also be used. The aim is to build a system where once the card is connected to a person (multiple cards per person possible) and that people can access data depending on hours or days. It should also be logged via PC which when entered. On the door to a welcome message with name appear