DevTerm/Code/devterm_fan_daemon_cm4/README.md

Fan control daemon for devterm cm4(rpi os)

Install

Devterm is pre-installed this package, so devterm cm4 users do not need to repeat the installation steps

wget -O - https://raw.githubusercontent.com/clockworkpi/apt/main/debian/KEY.gpg | sudo apt-key add -
echo "deb https://raw.githubusercontent.com/clockworkpi/apt/main/debian/ stable main" | sudo tee -a /etc/apt/sources.list.d/clockworkpi.list

sudo apt update && apt install -y devterm-fan-temp-daemon-cm4

Change the threshold temperature

Edit /usr/local/bin/temp_fan_daemon.py

line starts with MAX_TEMP=80

For devterm cm4(rpi os) the recommended MAX_TEMP is in range 60-80

then restart systemd service to take effect

sudo systemctl restart devterm-fan-temp-daemon

How to control the fan from GPIO

sudo gpio mode 17 out
sudo gpio write 17 1

sudo gpio mode 17 out
sudo gpio write 17 0