A Python script for a Raspberry Pi running Raspian counting the waterflow of valves with reed pulse switches.
Reports readings to a DB (InfluxDB) and visualizes them with a Grafana Dashboard
on a raspberry pi with raspian
install database server
echo "deb https://repos.influxdata.com/debian stretch stable" | sudo tee /etc/apt/sources.list.d/influxdb.list
sudo apt update
sudo apt install influxdb
sudo systemctl enable influxdb
sudo systemctl start influxdb
influx
CREATE DATABASE h2oflow
install grafana visualization
sudo apt-get install -y adduser libfontconfig sudo wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana_5.4.0_armhf.deb sudo dpkg -i grafana_5.4.0_armhf.deb
edit grafana config to run on port 80
sudo nano /etc/grafana/grafana.ini
http_port = 80
sudo setcap 'cap_net_bind_service=+ep' /usr/sbin/grafana-server
sudo systemctl daemon-reload sudo systemctl enable grafana-server sudo systemctl start grafana-server
clone this repo
cd /opt sudo apt-get install git sudo git clone https://github.com/planet-winter/H2O-monitor.git cd /opt/H2O-monitor
install requirements
sudo apt-get install python3-pip sudo pip3 install --upgrade -r requirements.txt
Setup grafana dashboard.
* open the systems IP address or hostname in a browser
* log in with admin and password admin
* in a new dashboard settings tab enter the dashboard.json content
Setup grafana Postgres data source
* goto configureation > data souces
* choose PostgreSQL
* enter Host: localhost and h2o as credentials and db name
autostart service
sudo cp ./h2o-monitor.service /etc/systemd/system/ sudo systemd daemon-reload sudo systemd enable h2o-monitor sudo systemd start h2o-monitor
## Web Overview
open the systems IP address or hostname in a browser
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