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This is a 5V cooling fan powered by 5V that is speed adjustable via a PWM signal, often used with the Jetson nano board for extra cooling. Compared to the simple 40mm fan we sell, this one is significantly more powerful to help keep your Jetson cool under demanding loads.
Features
- Category: Jetson Nano cooling fan
- Connector: 4PIN reverse-proof connector
- Spec: 5V, PWM adjustment
- Dimensions: 40mm×40mm×20mm
Wire Pinout
Black -> GND; Red -> Vcc; Blue -> Tach; Yellow -> PWM.
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
The color of Tach and PWM may be different among different batches, it is all to the actual products.
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