This time, we’re going to do something a little more useful with our sensor.
We’re going to push the data to a real-time publish/subscribe system online, using the Heroku platform. We will take this data and visualise it on a web accessible URL, where we will first present real-time data, and add a one-hour time series graph. We will then expand this into a dashboard, with a feedback message telling us about the light levels as text.
Nearly all of this we will achieve without writing any code, though we will see entry points where we can perform data manipulation if we needed to. [Read more…] about Using Node-Red to visualise sensor data over the internet without writing code, Part 2