CPU FAN Controller based on CPU temperature

by mohamed
(gaza)

This project is required to control 5 or 12v FAN that cools a CPU.
The speed of the fan must be adopted according to the CPU
temperature. At least there are 3 speeds.
PIC microcontroller must get an analog signal from a thermostat
connected to CPU and convert this signal to digital and then generate
PWM signal to control the speed of the fan. In addition to that, The
temperature (Celsius) and the speed (round per minute rpm) must be
shown on an LCD and must be updated every second.