Thank you for your answer.
Sorry, I didn't write this, but GPIO is sterring the fan through a transistor.
I will check it on a newer version of the distribution, the one I have is the beta version. Maybe that's the problem.
Hello
I'm running the NAS on Orange PI 5. I've run Armbian with EDK2 from https://github.com/armbian/build/pull/5900. The system starts from SSD disk connected via PCIE card with 4 SATA ports. I wanted to run simple fan control via GPIO, but setting the value 1 or 0 on GPIO has no effect and the multimeter connected to GPIO always shows 2.85V. How I did it. I installed wiringOP as the manual says. I selected GPIO 0 and entered the commands
gpio mode 0 out
gpio write 0 0
I connected a multimeter to GPIO 0 but it always shows 2.85V
when I did
gpio write 0 1
the multimeter also shows 2.85V
gpio readall
shows 1 in column V when "gpio write 0 1" command is
shows 0 in column V when "gpio write 0 0" command is
Does anyone have an idea what I'm doing wrong?