Lecture 7: Node-Red dashboards (Part 3)

For our final example of building Dashboards and UIs we’ll use a generic technique we’ve experimented with before. That’s the web service approach that uses a http node to allow us to accept http requests and return web pages. We used this approach in example 1.3 but didn’t explain the details. Continue reading “Lecture 7: Node-Red dashboards (Part 3)”

Node-RED: Lecture 7 – Dashboards and UI techniques for Node-RED

In this lecture you will take a look at a few techniques to allow you to visualize data passing through flows. We’ll focus on three approaches, the use of a third party dashboard tool, FreeBoard (Part 1), using the default Dashboard UI nodes provided by default in Node-RED (Part 2) and a general technique using a standard JavaScript charting tool (Part 3). Continue reading “Node-RED: Lecture 7 – Dashboards and UI techniques for Node-RED”

Node-RED: Lecture 6 – Intermediate flows

This lecture will build on the ideas you saw in lecture 5 and focus on examples that explore some of the key concepts from that lecture. These include the ideas of context, messages and sub-flows. The examples in this lecture are a little more complex than previous examples Continue reading “Node-RED: Lecture 6 – Intermediate flows”

Node-RED: Lecture 5 – The Node-RED programming model

As you’ve seen in previous lectures, Node-RED uses a visual flow-based programming paradigm[1]. This is not unique to Node-RED. Similar approaches have been used in many other domains such as music and multimedia (Max MSP), toys (Lego Mindstorms), enterprise application integration and industrial automation (LabVIEW). Continue reading “Node-RED: Lecture 5 – The Node-RED programming model”

Node-RED: Lecture 3 – Basic nodes and flows

In this lecture you will get to see a few of the more commonly used nodes and build on some of the things you learnt in previous lectures. You’ll start off with a series of examples based around the popular MQTT protocol that shows how to wire together a set of basic but very useful message Continue reading “Node-RED: Lecture 3 – Basic nodes and flows”