Raspberry-Pi-PWM-fan

Based on DriftKingTW's instructable.

I use a 25mm 5V 0,2A fan.

The circuit needed to drive it

• 5V, GND and GPIO inputs (from left to right)
• 1kOhm resistor
• 2N2222 NPN transistor
• 1N4001 diode
• 5V and GND output for the fan (from left to right)

Setting to use:

Install the RPi.GPIO package :

sudo apt-get install rpi.gpio

Download the script file from the repository:

wget https://raw.githubusercontent.com/AstaRom/RPi-PWM-Fan-Control/main/fan_control.py

Move the script to '/usr/local/bin', which is the ideal location for scripts.

sudo mv fan_control.py /usr/local/bin/
sudo chmod +x /usr/local/bin/fan_control.py

Download the shell script file:

wget https://raw.githubusercontent.com/AstaRom/RPi-PWM-Fan-Control/main/fan_control.sh

Move this file to '/etc/init.d', and make it executable:

sudo mv fan_control.sh /etc/init.d/
sudo chmod +x /etc/init.d/fan_control.sh

Now we'll register the script to run on boot:

sudo update-rc.d fan_control.sh defaults

Now, you can either restart your machine, or kick this off manually since it won't already be running:

sudo reboot or sudo /etc/init.d/fan_control.sh start