Outline

This project uses a RPi SBC (version 4 or later), Cricket 2 external sensors, and Tasmota mains pwer sockets. It also requires the following software packages, Node-red, MQTT, InfluxDB, Grafana, Telegram.

The DockerPi2 server is a Raspberry Pi 400 Computer that connects to the Internet, and runs a set of programs which gather and process data from a number of sensors, and store the data, and render the data on one or more computers screens.

The Sensors transmit their data to the RPi using MQTT, the RPi runs a broker (server) that takes this data and passes it onto node-red for processing or forward transmission. Node-red allows for the creation of a number of dashboards to display the information:

Crickets Monitor Page

Tasmota Plugs Page

Node-red can be considered a toolbox which allows data to be processed, redirected, displayed and expanded (in the same way as a web-browser is expanded by plug-ins).

InfluxDB - Telegram

Grafana

Other software also runs on the RPi, like the mosquitto MQTT server, and RPi-connect for remote access.

Design Notes

Sensors providing data to node-red are primarily Cricket2 units, or smart sockets provided by living-bytes, these run tasmota. These send json data via MQTT.

Node-red runs javascript, and also provides a graphical programming interface, these are used to create the interface, custom javascript code handles the json unpacking/re-routing.

Todo: show Schematic