Internet of Things Building Blocks with Arduino and Node RED

This document discusses the building blocks of the Internet of Things using Arduino and Node RED. It introduces Arduino as a relatively easy to use and cheap computer that is well suited for IoT applications. It also introduces Node RED as a visual programming tool and application server made for IoT that allows connecting hardware devices like Arduino to the cloud in a simple way without extensive coding. The document provides an overview of the software and tools needed like the Arduino IDE, Fritzing, Node RED, and instructions for installing NodeJS and Node RED.