Embedded Controller Based Smart Card Access

The most common devices used to control access to private areas where sensitive work is being carried out or where data is held, are keys, badges and magnetic cards. These all have the same basic disadvantages: they can easily be duplicated and when stolen or passed on, they can allow entry by an unauthorized person. This paper proposed a low cost embedded controller based smart card which consists of contact less card and a card reader. This Card reader is ideal for applications such as access control, attendance monitoring etc.