40mm Cooling Fan, 5V (PWM Adjustable)

Software setting

• Running fan: you can use the command below to run the fan at full speed.

sudo sh -c 'echo 255 > /sys/devices/pwm-fan/target_pwm' 

【Note】You can change the 255 to another value (0~255) to change the speed of fan.

• You can also set the fan run when booting by creating and modifying rc.local file.

sudo vi /etc/rc.local

• Add statements below to rc.local file and save.

#!/bin/bash
sleep 10
sudo /usr/bin/jetson_clocks
sudo sh -c 'echo 255 > /sys/devices/pwm-fan/target_pwm'

• Modify file permission.

sudo chmod u+x rc.local

• Then reboot and testing

sudo reboot

【Note】if you are strange with the vi editor, you can also install nano and use it for editing:

sudo apt-get install nano
sudo nano /etc/rc.local