Orange Pi PC: Fan on GPIO

Hi all, I'm not very familiar with linux scripting especially for controlling GPIO on Orange Pi. So my question is: is it possible to connect a fan to a GPIO port that is activated when temperature goes above a given value? Does anyone have a script for that or can suggest how to get it done? I have a plastic housing for the board and a fan attached to it that is constantly running. But for 95% of the time I don't have load on the pi and don't need the fan... Thanks in advance

I think that a fan controller is a nice thing to play with. But when you use Armbian with H3 devices there's really no need for a fan, since a quality heatsink is enough (you don't even a heatsink if you are able to accept that throttling will happen earlier, you only loose performance but that's it -- your H3 is always save). Please read through post #2 here: http://forum.armbian.com/index.php/topic/1850-pi-fan-issues-on-orange-pi-pc/?p=14192 Apart from that I've looked a lot into how consu

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