A linux PID controller for fans.
I simple fan controller I wrote for fun for my rockpro64. While maxing out all six cores with a tall heatsink, the controller seems to settle on a pwm value of 121 and a temperature of 61°C. With the default target temperature value being 40°C, at idle the fan doesn't even run. I'm not sure how it would work on other boards. Those have yet to be tested. USE AT YOUR OWN RISK.
- Runs as a systemd service.
- Tuneable PID controller.
- 🦀
Fanboi - A fan PID controller
USAGE:
fanboi [FLAGS] [OPTIONS]
FLAGS:
--dry-run Set program the dry run.
-h, --help Prints help information
-V, --version Prints version information
-v, --verbose Sets the level of verbosity
OPTIONS:
-c, --cpu-temp-ctl <CPU_TEMP_FILE> The CPU temperature file. Default='/sys/class/thermal/thermal_zone0/temp'
-d, --dvalue <D> Sets the D gain value of the PID controller. Default=4°C
-f, --fan-pwm-ctl <FAN_FILE> Fan control file. Default='/sys/class/hwmon/hwmon0/pwm1'
-g, --gpu-temp-ctl <CPU_TEMP_FILE> The GPU temperature file. Default='/sys/class/thermal/thermal_zone1/temp'
-i, --ivalue <I> Sets the I gain value of the PID controller. Default=0.7°C
--minimum-pwm <PWM> The minimum control output pwm before activating the fan. Default='50'
--poll-interval-secs <SECONDS> The frequency at which to poll the temperature and update fan pwm.
Default='10'
-p, --pvalue <P> Sets the P gain value of the PID controller. Default=1°C
-t, --target-temp <VALUE> Target temperature. Default=40°C
Comes with a nix config for generating a minimalist docker image.
nix-build docker.nix && docker load -i ./result
If you use Nix, the shell.nix config will give you a development environment:
nix-shell
Otherwise, if you're on anything else:
cargo build