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Raspberry Pi cooling fan $13 keeps your CPU temperature down

12:19 pm December 3, 2019 By Julian Horsey

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Raspberry Pi fan

It is well known that the latest Raspberry Pi 4 mini PC has been running a little hotter than expected since its launch, but thanks to a number of firmware updates the temperature has now been brought under control and together with a Raspberry Pi cooling fan the mini PC can be pushed to its limits once again without causing unnecessary extra heat.

The Raspberry Pi fan specifically designed for the mini PC by ACE Design Studios is now available via Tindie priced at $13 and offers an easy way to help regulate the temperature of your Pi’s CPU and measures just 4 x 4 cm in size.

Raspberry Pi cooling fan

Features of the Raspberry Pi cooling fan include :

1.Fan, air speed controlled by GPIO(PWM), effectively reducing the temperature when the Raspberry Pi works.
2.The fan is powered on by default.
3.The product is handmade by me.
4.The item is not assembled .
5.Turn off the fan when IO17 outputs 0, and turn on the fan when output 1

Note: When using PWM to control the fan, the fan will not turn if the duty cycle is too low .
Code to control the ON/OFF as below for your reference

ON

!/usr/bin/env python
— coding: utf-8 —
import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM) GPIO.setup(17, GPIO.OUT)

IO17 output HIGH turn on the fan
GPIO.output(17, GPIO.HIGH)

OFF

!/usr/bin/env python
— coding: utf-8 —
import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM) GPIO.setup(17, GPIO.OUT)

IO17 output LOW turn off the fan
GPIO.output(17, GPIO.LOW)

Source : Tindie

Filed Under: Hardware, Top News

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