The Raspberry Pi 5 automatically switches on the fan when the temperature rises and speeds it up or slows it down depending on the temperature:
- Below 50°C, the fan is switched off completely
- From 50°C it turns moderately at 30% speed
- At 60°C it goes up to 50% speed
- 67.5°C increases to 80% speed
- 75°C ensures full (= maximum) speed
Contributed by <@1187039958561726494>
## Connector
4pin JST SH connected (aka Qwiic)
Pin 1 - Red wire +5 volt
Pin 2 - Blue wire PWM
Pin 3 - Black wire GND
Pin 4 - Yellow wire Tach