Book Image

Building IoT Visualizations using Grafana

By : Rodrigo Juan Hernández
5 (1)
Book Image

Building IoT Visualizations using Grafana

5 (1)
By: Rodrigo Juan Hernández

Overview of this book

Grafana is a powerful open source software that helps you to visualize and analyze data gathered from various sources. It allows you to share valuable information through unclouded dashboards, run analytics, and send notifications. Building IoT Visualizations Using Grafana offers how-to procedures, useful resources, and advice that will help you to implement IoT solutions with confidence. You’ll begin by installing and configuring Grafana according to your needs. Next, you’ll acquire the skills needed to implement your own IoT system using communication brokers, databases, and metric management systems, as well as integrate everything with Grafana. You’ll learn to collect data from IoT devices and store it in databases, as well as discover how to connect databases to Grafana, make queries, and build insightful dashboards. Finally, the book will help you implement analytics for visualizing data, performing automation, and delivering notifications. By the end of this Grafana book, you’ll be able to build insightful dashboards, perform analytics, and deliver notifications that apply to IoT and IT systems.
Table of Contents (21 chapters)
1
Part 1: Meeting Grafana
4
Part 2: Collecting Data from IoT Devices
8
Part 3: Connecting Data Sources and Building Dashboards
12
Part 4: Performing Analytics and Notifications
15
Part 5: Integrating Grafana with Other Platforms

What is CoAP?

Constrained Application Protocol (CoAP), as its name implies, is tailored to run in constrained devices, such as microcontrollers.

Let’s see some characteristics:

  • It runs on UDP.
  • It has low header overhead and parsing complexity.
  • Its packets are much smaller than HTTP.
  • It has asynchronous message exchanges.
  • It allows UPD broadcast and multicast.
  • It has UIR and content-type support.
  • It uses methods like HTTP: GET, PUT, POST, and DELETE.
  • CoAP can interact with HTTP using proxies.
  • It has low resource and power consumption.

Although CoAP uses UDP, it allows requesting confirmation packets. Any request or response message can be tagged as confirmable or nonconfirmable. If the receiver gets a message tagged as confirmable, it will send an ack to the sender. On the other hand, if the message is tagged as nonconfirmable, it will not send any ACK message. CoAP packets are transported over UDP, so you can’t use SSL...