rpi-temperature-monitor

About

This repository contains Python scripts that enable you to disable, enable, or cycle the power to USB ports of a Raspberry Pi based on the Raspberry Pi's CPU temperature.

The scripts have been tested on a Raspberry Pi 4 model B running Ubuntu Server 21.04.

Prerequisites

Python 3, libraspberrypi-bin and uhubctl - you can install these by running sudo apt-get install python3 libraspberrypi-bin uhubctl

Installation

Just suggestions. Feel free to deploy it however you like.

1. Clone this Github repository
2. Move it to /opt - sudo mv rpi-temperature-monitor /opt/rpi-temperature-monitor
3. Add the crontab entry - sudo /opt/rpi-temperature-monitor/bash/install-crontab.sh
4. Run a test - sudo /opt/rpi-temperature-monitor/bash/run.sh

Important notes

• The bash scripts rely on you using the /opt/rpi-temperature-monitor path
• You can modify the execution time to whatever you like. The default is every 5 minutes.

Future fixes and enhancements

• The power is disabled to all the Pi USB ports, not to a single port.
• The Python script does not check for the USB ports current power state, it only checks what the CPU temperature is and triggers the power enable or disable command.
• Add the ability to check muliple Pi's.