A fan daemon for the orange pi zero. It gets too hot, so I needed to install a fan! The fan speed adapts to the temperature.
I got the original code from here. Only some changes were made to meet my needs, not in the functionality, but in the appearance.
The software was tested under Armbian with kernel 4.19.57-sunxi64
Pwm has to be enabled on Armbian. The easiest way is with armbian-config.
Run armbian-config -> system -> hardware, use arrow keys to highlight "pwm" and press spacebar to [*] enable it. Select save and reboot.
You can just download the binary, or compile it yourself with
gcc -std=gnu99 fand.c -o fand
To compile included fand.c source, if you edit it or do not trust the included binary.
After downloading/compiling the source you can check if works with just calling the binary as sudo and giving to it the correct rights.
sudo chown root fand
sudo chmod u+f fand
sudo <path_of_executable>./fan <frequence> <polling interval in seconds> <t_min> <t_max> <pwm_min> <pwm_max>
If this works, you can now just create a service and save it onto /etc/systemd/system/fand.service
[Unit]
Description=<Your Description>
After=syslog.target
StartLimitIntervalSec=0
[Service]
Type=simple
Restart=always
RestartSec=1
User=<your_user_or_root>
ExecStart=<path_of_executable>./fan <frequence> <polling interval in seconds> <t_min> <t_max> <pwm_min> <pwm_max>
[Install]
WantedBy=multi-user.target
Just call sudo systemctl enable fand. After a restart, your Fan will be working (You may turn off the OrangePi).
This project is licensed under the MIT License - see the LICENSE.md file for details.
Use without root permission