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”
Tag: IoT
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 4 – A tour of the core nodes
This lecture will take a look at the core set of nodes that Node-RED installs by default and then show you the extended set of nodes that the cloud-based Node-RED service – FRED – supports. Continue reading “Node-RED: Lecture 4 – A tour of the core nodes”
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”
Node-RED: Lecture 2 – Building your first flows
This lecture will introduce you to the Node-RED visual tool and get you started building your first flow. You’ll learn how to create simple flows, use debug nodes to track messages through the flows and how to use the Continue reading “Node-RED: Lecture 2 – Building your first flows”
Node-RED: Lecture 1 – A brief introduction to Node-RED
Node-RED is a powerful tool for building Internet of Things (IoT) applications with a focus on simplifying the ‘wiring together’ of code blocks to carry out tasks. It uses a visual programming approach that allows Continue reading “Node-RED: Lecture 1 – A brief introduction to Node-RED”