Process

The project started with identifying the sensors needed for the implementation. For sensing the entry and exit through the door, two IR break beam sensors were used. A single IR break beam sensor is sufficient to identify a break, but to have a sense of direction, two IR break beam sensors were employed. Next, to actuate the switch, a servo motor was the ideal choice. For the initial prototyping, an LED was used to see the correct functioning of the direction sensing algorithm.