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Rockpro64 CPU fan
#11
(07-31-2018, 02:29 PM)DIDquest Wrote:
(07-30-2018, 03:46 PM)ayufan Wrote: Try `rock64_diagnostic.sh -m` to display current status of the system.

I will tune the fan controls later to give more fine control. It is all about the duty cycle and period of square wave. We might be looking at 50-200Hz instead of last released 1kHz, and previously 100kHz.

The command on its own when entered into terminal results in "command not found". It seems like a bash file, but when I searched for it: no results. If it is a bash file, where is it located so I can test it?

Code:
/usr/local/sbin
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#12
Take a look at this thread:
https://forum.pine64.org/showthread.php?tid=6489

Regards
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#13
(07-30-2018, 10:10 AM)Luke Wrote: As of today, if you want to try out the fan then you'll need to update the kernel:
Code:
https://github.com/ayufan-rock64/linux-kernel/releases/tag/4.4.132-1077-rockchip-ayufan


Currently the fan works in an on/off mode (at least for me):
Code:
nano /sys/class/hwmon/hwmon0/pwm1


The range should be from 0 - 255, but for now ... for me ... 0, 1 and 2 are 'off' while 3 and up is 'on'.

I connected a standard 12 V computer case fan. Around 80 the fan starts spinning slowly. But it vibrates until I set the value around 240.
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