Hardware example (Arduino)
Computer Fan Speed Modifier (in Under 30 Minutes) : 4 Steps (with Pictures) - Instructables
sensor - Arduino controlled PWM PC Fan - Electrical Engineering Stack Exchange
Temperature Control With Arduino and PWM Fans : 6 Steps (with Pictures) - Instructables
4-Wired Fan Control (PWM) - Hackster.io
Simple PWM Fan Speed Control - Project Guidance - Arduino Forum
25 kHz 4 Pin PWM Fan Control with Arduino Uno - Hackster.io
Amazon.com: HiLetgo DC 12V 5A PWM PC CPU Fan Temperature Control Speed Controller Board Speed Controller Temperature Probe Buzzle : Industrial & Scientific
Arduino Fan Control using High Frequency 25kHz PWM // 4-Wire CPU Fans - YouTube
4-Wired Fan Control (PWM) - Hackster.io
Arduino PWM Fan Controller – Microcontroller Based Projects
Control Speed of DC FAN Using Arduino PID Library - Arduino Stack Exchange
Temperature-dependent fan control using Arduino – Robert's Blog
Controlling a 4-wired fan PWM Signal using Arduino allows only two settings - Electrical Engineering Stack Exchange
How To Make a DC Fan Speed Controller | DC fan speed controller with IR remote - YouTube
Fan Controller - Lucky Resistor
Temperature Based Fan Speed Control & Monitoring With Arduino - YouTube
Arduino Fan Speed Controlled by Temperature
PWM 4 pin Fan jupping at 100% - Project Guidance - Arduino Forum
Read fan speed with Arduino
![Project] Arduino-based fan controller (4 fans) with support for automatic/manual control and speed display : r/hardware](http://i.imgur.com/f6DnIPy.jpg "Project] Arduino-based fan controller (4 fans) with support for automatic/manual control and speed display : r/hardware")
Project] Arduino-based fan controller (4 fans) with support for automatic/manual control and speed display : r/hardware
Arduino PWM DC Motor Fan Speed Control - YouTube
AC Fan Speed Control using Arduino and TRIAC
