Difference between revisions of "Fan-4020-PWM-5V"

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Revision as of 17:21, 19 March 2021


Categories: Jetson

Brand: Waveshare





Related products



Fan for Jetson Nano, support PWM controlling Template:Amazon

How to use

Hardware connection

Please connect the Fan to Fan interface of the Jetson Nano Developer Kit, note the direction.

Software setting

  • Running fan: you can use the command below to run the fan in full speed
sudo sh -c 'echo 255 > /sys/devices/pwm-fan/target_pwm' 

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

  • You can also set the fan ran when booting by creating and modifying rc.local file
sudo vi /etc/rc.local
  • Add statements below to rc.local file and save
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 to the vi editor, you can also install nano and use it for editing:

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


What functions do the four wires of Fan-4020-PWM-5V separately?

Black -> GND; Red -> Vcc; Blue -> Tach; Yellow -> PWM The color of Tach and PWM may be different among different batch, it is all to the actual products.

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