Internet of Things - BeagleBone - page 445

Figure 6-7. The Node-RED web page
Building a Node-RED Flow
The example in this recipe builds a Node-RED flow that will toggle an LED whenever a
certain hashtag is tweeted. But first, you need to set up the Node-RED flow with the
twitter node:
1. On the Node-RED web page, scroll down until you see the social nodes on the
left side of the page.
2. Drag the twitter node to the canvas, as shown in Figure 6-8 .