fanctl

Active Fan Thermal tool, to Control Processor Temperature on RockPro64 Single Board Computer,

But Could be adapted to other boards too.. This tool is system Agnostic.

The Control is Made via SysFS, based in the Lua Scripting Language. You can Adapt the file fanctl, if you want( its configured for RockPro64 )

Characteristics:

1. Temp < 45 Degrees Celsius,
	Fan will Stop

2. 45 <= Temp <= 62 , Temp is Adjusted

3. 63 <= Temp < 70 Degrees Celsius,
	System will UnderClock Frequencies

4. Temp >= 70 Degrees Celsius,
	System will shutdown in 10 Seconds..

Requirements:

Only a Single Dependence,
The Lua 5.3 Runtime.

Debian/Ubuntu

Install Dependencies.

apt-get install lua5.3

Then made the Symbolic Link:

ln -s /usr/bin/lua5.3 /usr/bin/lua

Configure fanctl

Copy Fanctl to /usr/sbin/

cp fanctl /usr/sbin/ && chmod 550 /usr/sbin/fanctl && chown root: /usr/sbin/fanctl

Copy the Systemd Service file to Destination Folder

cp fanctl.service /lib/systemd/system

Enable and Start Service

systemctl enable fanctl && systemctl start fanctl

Check the Status

systemctl status fanctl

root@rockpro64:# systemctl status fanctl
● fanctl.service - Active Thermal Fan Service
   Loaded: loaded (/lib/systemd/system/fanctl.service; enabled; vendor preset: enabled)
   Active: active (running) since Sat 2018-09-01 23:23:49 WEST; 3h 0min ago
 Main PID: 704 (lua)
	Tasks: 3 (limit: 4915)
   CGroup: /system.slice/fanctl.service
	       ├─  704 lua /usr/sbin/fanctl
	       ├─19575 sh -c sleep 5
	       └─19576 sleep 5
Sep 01 23:23:49 rockpro64 systemd[1]: Started Active Thermal Fan Service.

That's it!!!