Raspberry Pi MQTT Monitor

The easiest way to track your Raspberry Pi or Ubuntu computer system health and performance in Home Assistant.

Start monitoring your system in just a few minutes.
Monitor: cpu load, cpu temperature, free space, used memory, swap usage, uptime, wifi signal quality, voltage and system clock speed.
Automatic HASS configuration: Supports discovery messages, so no manual configuration in Home Assistant configuration.yaml is needed.
Automated installation and configuration: you can install it and schedule it with a service or cron with just one command from shell.
Configurable: You can select what is monitored and how the message(s) is send (separately or as one csv message)
Easy update: You can update the script by calling it with command line argument --update

What is new
CLI arguments
Installation
- Automated
- Manual
Configuration
Test Raspberry Pi MQTT Monitor
Schedule Raspberry Pi MQTT Monitor execution as a service
Schedule Raspberry Pi MQTT Monitor execution
How to update
Home Assistant Integration
To Do
Feature request

What is new

2024-02-05: System Restart button added (only works when running as service)
2024-01-28: Remote updates via Home Assistant are now available
2024-01-28: Improved error handling for the MQTT connection
2024-01-28: Script version is displayed in home assistant device information
2024-01-28: Update the script by calling it with command line argument --update
2024-01-27: Now you can run the script as a service (systemd) or as a cron job
2024-01-27: Support for command line arguments
2024-01-27: Added a binary sensor for github to monitor for new versions of the script
2024-01-27: Updated the sensors names not to include the device name as per home assistant guidelines
2024-01-10: Added support for Raspberry Pi 5 fan speed monitoring (only works on Raspberry Pi 5 with stock fan)

CLI arguments

usage: rpi-cpu2mqtt.py [-h] [--display] [--service] [--version] [--update]

options:
  -h, --help     show this help message and exit
  --display, -d  display values on screen
  --service, -s  run script as a service
  --version, -v  display version
  --update,  -u  update script and config

Installation

Automated

Run this command to use the automated installation:

bash <(curl -s https://raw.githubusercontent.com/hjelev/rpi-mqtt-monitor/master/remote_install.sh)

Raspberry Pi MQTT monitor will be intalled in the location where the installer is called, inside a folder named rpi-mqtt-monitor.

The auto-installer needs the software below and will install it if its not found:

python (2 or 3)
python-pip
git
paho-mqtt

Only python is not automatically installed, the rest of the dependancies should be handeled by the auto installation. It will also help you configure the host and credentials for the mqtt server in config.py and create the cronjob configuration for you.

Manual

If you don't like the automated installation here are manuall installation instructions (missing the creation of virtual environment).

Install pip if you don't have it:

sudo apt install python-pip

Then install this python module needed for the script:

pip3 install paho-mqtt

Install git if you don't have it:

apt install git

Clone the repository:

git clone https://github.com/hjelev/rpi-mqtt-monitor.git

Rename src/config.py.example to src/config.py

Configuration

(only needed for manual installation) Populate the variables for MQTT host, user, password and main topic in src/config.py.

You can also choose what messages are sent and what is the delay (sleep_time is only used for multiple messages) between them. If you are sending a grouped message, and you want to delay the execution of the script you need to use the random_delay variable which is set to 1 by default. This is the default configuration (check the example file for more info):

random_delay = randrange(1)
discovery_messages = True
group_messages = False
sleep_time = 0.5
service_sleep_time = 120
cpu_load = True
cpu_temp = True
used_space = True
voltage = True
sys_clock_speed = True
swap = True
memory = True
uptime = True
uptime_seconds = False
wifi_signal = False
wifi_signal_dbm = False
rpi5_fan_speed = False

If discovery_messages is set to true, the script will send MQTT Discovery config messages which allows Home Assistant to automatically add the sensors without having to define them in configuration. Note, this setting is only available when group_messages is not used.

If group_messages is set to true the script will send just one message containing all values in CSV format. The group message looks like this:

1.3, 47.1, 12, 1.2, 600, nan, 14.1, 12, 50, -60

Test Raspberry Pi MQTT Monitor

Run Raspberry Pi MQTT Monitor (you might need to update the path in the command below, depending on where you installled it)

/usr/bin/python3 /home/pi/rpi-mqtt-monitor/rpi-cpu2mqtt.py -d

Once you run Raspberry Pi MQTT monitor you should see something like this:

:: Device Information
   Model Name: Intel(R) Pentium(R) Silver J5040 CPU @ 2.00GHz
   Manufacturer: GenuineIntel
   OS: Ubuntu 23.10
   Hostname: ubuntu-pc
   IP Address: 192.168.0.200

:: Measured values
   CPU Load: 71.0
   CPU Temp: 68
   Used Space: 11
   Voltage: False
   CPU Clock Speed: False
   Swap: False
   Memory: 67
   Uptime: 0
   Wifi Signal: False
   Wifi Signal dBm: False
   RPI5 Fan Speed: False
   Git Update: off

Schedule Raspberry Pi MQTT Monitor execution as a service

If you want to run Raspberry Pi MQTT Monitor as a service you can use the provided service file. You need to edit the service file and update the path to the script and the user that will run it. Then copy the service file to /etc/systemd/system/ and enable it:

sudo cp rpi-cpu2mqtt.service /etc/systemd/system/
sudo systemctl enable rpi-cpu2mqtt.service

To test that the service is working you can run:

sudo service rpi-cpu2mqtt start
sudo service rpi-cpu2mqtt status

Schedule Raspberry Pi MQTT Monitor execution with a cron

Create a cron entry like this (you might need to update the path in the cron entry below, depending on where you installed it):

*/2 * * * * cd /home/pi/rpi-mqtt-monitor; /usr/bin/python /home/pi/rpi-mqtt-monitor/rpi-cpu2mqtt.py

How to update

Remote updates via Home Assistant are now available.

To use these you need to have the script running as a service. (the installer now supports this)

Manual update:

cd rpi-mqtt-monitor
python3 src/update.py

Home Assistant Integration

If you are using discovery_messages, then this step is not required as a new MQTT device will be automatically created in Home Assistant and all you need to do is add it to a dashboard.

moved to wiki

To Do

maybe add network traffic monitoring via some third party software (for now I can't find a way to do it without additional software)

Feature request

If you want to suggest a new feature or improvement don't hesitate to open an issue or pull request.

sunsided / rpi-mqtt-monitor