Common PWN FAN doesn't stop on 0% PWM signal and still running on minimum RPM. It is possible to control the fan speed not by fan PWM, but by PWM of DC input. In that case the fan can be stopped, but ...
Of course, the standard way of controlling CPU fans these days is with PWM, so he built a circuit which essentially converts the PWM signal from the motherboard into a phantom thermistor.
I modified the script to make it suitable for the Raspberry PI 5. The script can be used with ANY fan, using proper interfacing techniques. Anyway, any 5V PWM NOCTUA fans have the advantage of being ...
We have a fan driver circuit from a customer that doesn't work. I think the design intent was to filter the gained-up (logic level) pwm signal. The pi-filter LC section has a cutoff of 72Khz, so I ...
The Arctic S12038-8K is a 120mm cooling fan with a PWM-controlled RPM range from 800 to 8,000 (it can also be controlled via voltage regulation). The unit comes equipped with a standard four-pin ...