taidacent raspberry pi cooling fan silent dc brushless fan 5v cooling board wind speed pwm controllable raspberry pi fan taidacent the fan heat sink adopts 4*4 large wind silent fan design, and the wind speed can be controlled and controlled by gpio, which can effectively reduce the temperature of the raspberry pie when working. <br> fan control code, for reference only:<br> open fan code<br> #!/usr/bin/env python<br> # -*- coding: utf-8 -*-<br> import rpi.gpio as gpio<br> gpio.setmode(gpio.bcm)<br> gpio.setup(22, gpio.out)<br> #io22 output high to turn on the fan<br> gpio.output(22, gpio.high)<br> -------------------------------------------------- -------------------------------------------------- ------<br> turn off fan code<br> #!/usr/bin/env python<br> # -*- coding: utf-8 -*-<br> import rpi.gpio as gpio<br> gpio.setmode(gpio.bcm)<br> gpio.setup(22, gpio.out)<br> #io22 output low to turn off the fan<br> gpio.output(22, gpio.low)<br>