PIC18F4620-Based Smart Fan

Features:

-Programmed PIC18F4620 microcontroller in C as PWM motor controller and tachometer.

-DIP switches allow 8 possible speed modes: Mode 0 (Fan off) to Mode 7 (nearly 100% PWM duty cycle)

-Displays System On/Off, Current Mode, Saved Mode, and RPM on TFT LCD.

-Configured software interrupts to store current Mode or run the fan at the saved Mode by pressing a push button switch.