Part 3

Introduction to Node-RED

• Estimated duration: 10 min
• Practical: Node-RED Setup

Receive Environmental Sensor Data in Node-RED

In this lab you will set up Node-RED and learn about low code programming with Node-RED.

• Estimated duration: 10 min
• Practical: Environmental Sensor Data

Node-RED Dashboard - Real Time Chart

In this lab you will import Node-RED flows which create Dashboard Charts. After learning about Node-RED Dashboard Charts, you will be able to display temperature and humidity graphs of the Device environmental sensors.

• Estimated duration: 15 min
• Practical: Plot Environment Sensor Data

Store Data in Cloud Storage

In this lab you will store the device environmental sensor data in a cloud database.

• Estimated duration: 10 min
• Practical: Write Sensor Data to Cloud Storage

Node-RED Dashboard - Historical Playback Chart

In this lab you will read the historical sensor data from a cloud storage database and create a graph of prior readings

• Estimated duration: 10 min
• Practical: Read Cloud Storage and Plot History Chart

Control your Device Reporting Interval

In this lab you will modify the ESP8266 Arduino program to receive MQTT commands and build a Node-RED Dashboard Form to dynamically change the reporting interval of the ESP8266 DHT environmental sensor data.

• Estimated duration: 20 min
• Practical: Change the Sensor Reporting Interval Dynamically

Control your LED via Device Commands

In this lab you will modify / control your Device program to receive MQTT commands and build a Node-RED flow to dynamically change the LED color of the device depending on Alert thresholds.

• Estimated duration: 20 min
• Practical: Control the LED Alert Colors from the Cloud