User manual

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ABSTRACT
Nowadays, people often waste energy without realizing it. Home automation
concept had been introduced to save power consumption. A counter system circuit
was designed and set up to turn on or off the lights. This system is useful when
someone in a room forgot to turn off the light when they leave only when nobody left
in the room. Moreover, this device can be used to measure the number and direction
of people traversing a certain passage or entrance. So, the counter system can count
visitor pass through in a room. It turns on the light when the first visitor enters the
room while it will turn off the lighting system when the last person leaves the room.
In addition, it also can measure the height of the visitor. However, this device only
limited with a room which provide an entrance only. The system uses
microcontroller with PIC 18F452 and displayed at LCD display. Microcontroller use
microC programming and this program consider limited probabilities but can be
replacing with improved programming. In addition, system comes with sensor as
input and relay as the output. The sensor and relay is responsible to detect visitor and
control the lighting system. This concept can be further utilized by the hotels or
building management to control their lights in their units effectively. Therefore the
power consumption can be managed and reduce the emission of green house gases
indirectly. Several assumptions and probabilities were made when setting up this
prototype system and future improvement and research of this work also been
studied.