40mm Cooling Fan, 5V (PWM Adjustable) - Waveshare

Product overview

Part Number: 40mm Cooling Fan, 5V (PWM Adjustable)

Manufacturer: Waveshare

Product Category: OTHER PARTS

Update Date: 2024-05-20

Description

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.

Detailed Information

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/bashsleep 10sudo /usr/bin/jetson_clockssudo 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 nanosudo nano /etc/rc.local

The color of Tach and PWM may be different among different batches, it is all to the actual products.

Price & Procurement

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