Category: Nodes

JSONata is a lightweight query and transformation language for JSON data and allows queries to be carried out directly on

The table  dashboard ui widget node is used to add tabular data to a dashboard. The node is based on

The node-red email node most commonly used is the node-red-node-email which consists of three nodes. A send node receive node

Most MQTT implementations use SSL by default for data security. However SSL is a link encryption method and doesn’t secure

Some nodes like the MQTT-in and MQTT-out nodes share configuration data. The MQTT-in and MQTT-out nodes share the broker configuration.

This node allows dynamic control of the dashboard. A typical use is for creating dynamic menus. A dashboard consists of

The chart node is used to display input data in various chart forms.(line, pie, bar etc).

The input data is usually time based but doesn’t need to be.

The input data can be real time or inserted from a database or log file

To implement a web server with node-red you require two nodes. They are: http-in -accepts requests from a client. http-response

The exec node allows you to take any existing system command, python program or script that you have written and