Push metrics from Enviro+ to InfluxDB for Grafana.
Adjust database parameters before first use.
Gas readings were calibrated according to https://forums.pimoroni.com/t/enviro-ohms-to-ppm/12207/6, sensors need ~100 minutes of warm-up before first database push for accurate PPM readings. This is really important - each RPi and Enviro board can produce different outputs!
If you want to run it with external PMS5003 sensor, run the following commands:
sudo raspi-config nonint do_serial 1
raspi-config nonint set_config_var enable_uart 1 /boot/config.txt
Double-check that dtoverlay=pi3-miniuart-bt is enabled in /boot/config.txt . Reboot the Pi afterwards.
It's important that sensors run in a consistent matter - for accurate readings.
Supervisor can monitor python PID and make sure it's always up:
sudo apt-get install supervisor
sudo mkdir /var/log/enviro
sudo nano /etc/supervisor/conf.d/enviro.conf :
[program:enviro]
command=python measurements_to_influx.py
directory=/home/pi/GitHub/enviro
autostart=true
autorestart=true
startretries=3
stderr_logfile=/var/log/enviro/measurements_to_influx.err.log
stdout_logfile=/var/log/enviro/measurements_to_influx.out.log
user=pi
sudo supervisorctl reread
sudo supervisorctl update