Service File Configuration

Important

Start the Service File Configuration only after all the InfluxDB and Grafana Configuration steps have been completed.

1. To ensure the influxdb-multisensor.py script runs even if the device reboots, we will use a service file.

   sudo nano /lib/systemd/system/influxdb-multisensor.service
   

2. Copy and paste the contents from influxdb-multisensor.service [found within the RPi-IoT folder or here: Link] into the new service file making sure to check the WorkingDirectory and ExecStart file path locations match the location of the "multisensors" folder. It should look something like this:

   [Unit]
   Description=Vivarium Monitor
   After=network-online.target
   
   [Service]
   Type=simple
   Restart=always
   RestartSec=60
   WorkingDirectory=/home/pi/RPi-IoT/multisensors/
   ExecStart=/usr/bin/python3 /home/pi/RPi-IoT/multisensors/influxdb-multisensor.py
   
   [Install]
   WantedBy=multi-user.target
   

   Save and close: Ctrl+X -> Y -> hit enter

3. Close the terminal window where the python script was printing realtime sensor values or hit Ctrl+C to interrupt the script

4. Enable the service file and reload all service files

   sudo systemctl enable influxdb-multisensor.service
   sudo systemctl daemon-reload
   sudo systemctl start influxdb-multisensor.service
   

5. You can test if the program restarts if the Pi loses power and reboots

   sudo shutdown -r now
   

   Once the Pi boots up:

   sudo systemctl status influxdb-multisensor.service
   

   You should see something like this:

   

   You can also open a browser and navigate to http://localhost:3000/ to check if grafana is receiving sensor values.

Once the above steps are completed, you can proceed to Cloudflare Configuration