Node-RED: Lecture 3 – Example 3.5 Scaling input with the range node

When dealing with real world input from sensors and other devices, an ability to scale input data is often required. Node-RED provides the scale node to support this and allows you to scale (linearly) an input value.

This example continues our theme of manipulating MQTT input data. If you aren’t familiar with how to setup an MQTT node then refer to Example 3.1.… Read the rest