I have a question referring to this, from the wiki on github
For Tinker Board 2 / Tinker Board 2S
The FAN connector offers 500mA maximum by hardware design.
It provides be controlled High/Low speed by software and kindly find the control method below:
High speed setting on FAN_SPD_CTRL
sudo -i
echo "154" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio154/direction
echo "1" > /sys/class/gpio/gpio154/value
Low speed setting on FAN_SPD_CTRL
echo "0" > /sys/class/gpio/gpio154/value
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This works flawless, I can set 2 speeds. „Fast“ and I’d call it „medium“.
i would appreciate a „slow“ and „silent“ setting! The two that are already available are to fast and loud. How can I get this feature? Can someone Programm it?
(I tried to plug my fan in the 3volt and it runs super silent but I am afraid to damage something related to the max 50ma output . The fan is at 48ma at 5V in the documentation)
Cheers
Andreas