In this context, we have conducted a minor project entitled “TEMPERATURE CONTROLLED AUTOMATIC AIR CONDITIONING SYSTEM” under the subject MINOR PROJECT(EX654) specified by Institute of Engineering,Tribhuvan University.The main theme of this project is to furnish a system which automatically monitor the room temperature and circulate fresh air inside the room.Essentially,this project have been designed using embedded system components like microcontrollers(ATMEL AT89S52) and various other components like ADC,optocoupler,darlington transistor etc. It is called so because air has to be heated or cooled (conditioned) to give us comfort. The single system which can perform both the functions of cooling and heating is called air conditioning system. Since we need cooling device during summers and heating device during winters, instead of having separate units, we can have a single unit which can perform both the functions of heating and cooling.
Though people can never overcome or win over nature, they have at least discovered cooling and heating devices to protect themselves from weather extremities. Likewise during winter season we need to get wrapped up with thick clothes to protect ourselves from cold. Compared to past days, it is even difficult to walk in day time and to sleep in night time during summers. Because of this it is too hot during summer season and too cold during winter season. Due to global warming and various other reasons, temperature of earth is increasing day by day.
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