Node-RED

If you boot up our tech stack using docker-compose you already have a Node-RED instance running on your local machine.

First steps

For debuging I am going to install Node-RED's own dashboard.

Shell into your Docker container.

Inside the container you can install the Node-RED Dashboard (we will switch to Grafana, soon):

npm install node-red-dashboard

The dashboard should be visible on the righmost menu item in Node-RED.

In Node-RED you can add a MQQT node to receive values from the power monitor.

To simply display the values in a gauge (or chart) you can hook it up to a gauge node.

In the dasboard section you have to create a tab. Inside this tab you have to create a group.

The tricky part is putting the gauges in the group. This is done in the gauge's settings (not in the dashboard's settings).

You can view the dashboard in an (also mobile) web browser.

Have a look at the flow also in this repository.