Using the Node Red Status Node

In Node red any node can report status information in the visual editor. The screen shot below shows the MQTT node. It shows a green circle to indicate that it is connected and the text connected underneath the node. Click to rate this post! [Total: 1 Average: 5]

Continue reading

Node-Red HTTP Request Node for Beginners

In node-red there are three core http nodes. http-in -Used to configure a web server http response – used with http-in to send responses. http request – used for making http requests i.e an http client. The http request node can be used for. Retrieving web pages from a website Making API Requests Sending and receiving JSON data to a website or API. etc The node will send a request and receive the response. The request node handles both the request and theĀ  response. Note: if you are not familiar with the http protocol then I suggest you read the http basics tutorial. Click to rate this post! [Total: 3 Average: 5]

Continue reading

Using the Node-Red Function Node- Beginners Guide

The function node is used to run JavaScript code against the msg object. The function node accepts a msg object as input and can return 0 or more message objects as output. This message object must have a payload property (msg.payload), and usually has other properties depending on the proceeding nodes. Click to rate this post! [Total: 5 Average: 5]

Continue reading