Abstract
Automatic controls play an ever-increasing role in a
human way of life.A circuit with LM35DZ
temperature sensor, PIC16F877A microcontroller, brush less DC
motor and few of electronic components is designed and
implemented to control the fan speed automatically.Automatic control is vast technological area
whose central aim is to develop control strategies that improve
performance when they applied to a system.One such
gadget is the fan.