IAQ with Grafana

This tutorial will guide you to create a Grafana installation on a Raspberry Pi which logs temperature, humidity, air pressure and indoor air quality (IAQ) from a card10 badge. It will look similar to this:

The individual steps are:

• Prepare card10

  • Turn on Bluetooth
  • Turn on BSEC in BME680 app

• Prepare Raspberry Pi 3/4

  • Install latest “Raspberry Pi OS Lite” onto an SD card
  • Boot Raspberry Pi
  • Login
  • Change the password via passwd
  • Configure any network interfaces as needed using rpi-config
  • sudo apt update
  • sudo apt upgrade
  • sudo reboot
  • sudo apt install git

• Install IOTstack

  • git clone https://github.com/SensorsIot/IOTstack.git IOTstack
  • cd ~/IOTstack
  • ./menu.sh
  • Let it install dependencies
  • Restart when asked
  • Edit /etc/group and add pi to the docker group: docker:x:995:root,pi
  • Logout
  • Login again, run menu.sh again
  • Ignore error message because of docker version
  • Select “Build Stack”
  • Select grafana, influxdb, nodered using space
  • Enter the nodered menu to build addons list with the right arrow key

  

  • Press enter

  

  • Add node-red-contrib-generic-ble using space

  

  • Hit enter to build addons_list.yml
  • Hit escape to go back
  • Hit enter to start the build
  • Go to “Docker Commands”
  • Select “Start stack”
  • Wait for containers being built
  • Press enter
  • Press escape

• Pair card10 to system

  • Run bluetoothctl
  • scan on
  • Enter Bluetooth menu on card10
  • Wait until something like [NEW] Device CA:4D:10:XX:XX:XX card10-xxxxxx appears
  • pair CA:4D:10:XX:XX:XX (replace with MAC that is shown in bluetooth menu)
  • Type yes, hit yes on card10
  • Try again if the pairing fails
  • disconnect
  • exit

• Create influx database

  • docker exec -it influxdb influx
  • create database card10
  • (use card10)
  • create user "nodered" with password 'supersecure'
  • create user "grafana" with password 'supersecure'
  • grant all on card10 to nodered
  • grant all on card10 to grafana
  • exit

• Configure grafana

  • Go to <IP of your Raspberry Pi>:3000
  • User admin, Password admin
  • Select a new password
  • Add new data source influxdb

  

  • Url: http://influxdb:8086

  

  • Database: card10
  • User: grafana
  • Password: supersecure
  • Method: GET

  

  • Press “Save & test”

  

  • Import Air-1641131410916.json

  

  • Select the InfluxDB data source you created before

  

  • Press Import

• Add card10 in nodered

  • Go to <IP of your Raspberry Pi>:1880
  • Import card10-iaq-flow.json

  

  • Change mac of device to CA:4D:10:XX:XX:XX (same as above)

  

  • Set user of influxdb to nodered
  • Set password of influxdb to supersecure

  

  • Deploy flow
  • Reboot (takes some time)
  • Check that card10 BLE connection goes to “Active”

You should now see data coming in in the grafana dashboard that you created before under http://<IP of your Raspberry Pi>:3000