What is Roastie?

Roastie is a small browser based application to monitor data collected while roasting coffee.

Prerequisites

• Docker (https://www.docker.com/)
• NodeJS (https://nodejs.org/en/download/)

In order to run this application, a small service providing sensor data on mqtt topics (one topic per sensor) must be present. In this repository the docker-compose file provides a mqtt broker and starts a container containing a python script, which collects sensor data on a modbus server and transfer this data to the mqtt topics. Start infrastructure (mqtt broker and service providing sensor data)

docker compose up --build

Access the app

The application is deployed using github-pages and can be reached under: https://timwue.github.io/roastie

How to start locally?

In the project directory, you can run:

npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.

After startup configure the url of the mqtt broker in the settings page.

How to provide data, which can be used by this application?

In order to provide own data, a mqtt broker must be available. The url of the broker needs to be set in the app's settings. In addition, each sensor's data should be provided on a designated mqtt topic. Each message should be a json Object containing the field value like {"value": 2}. Each topic name needs to be set in the app's settings as well.