Microcontroller Based Automatic Control Home Appliances
نویسندگان
چکیده
This paper presents the “Automatic control of home appliances include Room Light and Fan Controller Using Microcontroller AT89C51” is a reliable circuit that takes over the task of controlling the room fan and room lights as well as counting number of persons / visitors in the room very accurately .When somebody enters into the room then the counter is incremented by one and the light in the room will be switched ON and when any one leaves the room then the counter is decremented by one. The speed control of fan will depend on PWM signal. It contain temperature sensor that can sense the temperature & gives the control commands for microcontroller .Then microcontroller increases as well as decreases the speed of the fan.. The total number of persons inside the room is also displayed on the liquid crystal display. The microcontroller does the above job. The main objective of control is to get the desired output and in energy conservation. KEYWORDSMicrocontroller (AT89C51), PWM, LCD, IR Module, LM35
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