GeeekPi-ZP-0110

The project contains scripts to configure and control the GeeekPi ZP-0110 heatsink with fan for use with Raspberry Pi 4B single board computers (SBC).

Automatic fan control is enabled with the raspi-config utility however it ONLY supports the Raspberry Pi OS. For other OS (e.g., Ubuntu) a python script will need to be used to automatically control the fan when the temperature threshold is reached.

Follow the instructions provided by GeeekPi to enable fan control on Raspberry Pi OS. For product details or a sample Python script you can refer to the 52pi.com wiki page at: https://wiki.52pi.com/index.php/ZP-0110

Prerequisites:

Install the Python and i2c packages using the command below:

sudo apt install -y python3-pip python3-dev python3-pil python3-setuptools python3-rpi.gpio i2c-tools

Add the user account to the i2c group.

sudo usermod -aG i2c someacct

Add the Automated Script:

Change to the /opt directory that is used for installing third-party (non-standard) software.

cd /opt

Clone the GeeekPi-ZP-0110 Github repository.

git clone https://www.github.com/WhirlyHat/GeeekPi-ZP-0110.git

Run the deployment script using sudo.

sudo bash ./GeeekPi-ZP-0110/deploy-service.sh

Answer the questions when prompted to continue the installation.

Existing service installation found.
Do you want to overwrite? (Y/n)
y
Creating a new service unit: /etc/systemd/system/pwm-fan-control.service
Successfully created service unit file.
Reloading systemd daemon...
Enabling the service: pwm-fan-control.service
Starting the service: pwm-fan-control.service
Service pwm-fan-control.service successfully enabled and started!

Use systemctl to view the service status.

systemctl status pwm-fan-control

Reboot the system.

sudo reboot now

Customize the Triggers and Polling Interval:

VERSION 2:

Modify the line below in the /service/pwm-fan-control.py python file to specify when the fan turns on/off and how frequently the script checks the temperature. The default values are used if no values are specified for the FanControlService constructor. Note: Temperatures are measured in Celsius by default.

GeeekPi = FanControlService(on_threshold=nn,off_threshold=nn,sleep_interval=ss)

Celsius degrees when the fan turns ON:

on_threshold  = <integer>

Celsius degrees when the fan turns OFF:

off_threshold = <integer>

Seconds to wait until the next core temperature polling:

sleep_interval = <integer>

VERSION 1:

Modify the following three variables in the /service/version_1/pwm-fan-control.py python file to specify when the fan turns on/off and how frequently the script checks the temperature. Note: Temperatures are measured in Celsius by default.

Celsius degrees when the fan turns ON:

ON_THRESHOLD  = <integer>

Celsius degrees when the fan turns OFF:

OFF_THRESHOLD = <integer>

Seconds to wait until the next core temperature polling:

SLEEP_INTERVAL = <integer>