Book Image

Arduino Data Communications

By : Robert Thas John
5 (1)
Book Image

Arduino Data Communications

5 (1)
By: Robert Thas John

Overview of this book

In our modern, internet-connected world, where billions of devices constantly collect and send data to systems to be stored and processed, it’s surprising how the intricacies of data transmission and storage are often overlooked in the IoT domain. With Arduino Data Communications, you'll bridge the knowledge gap and become an expert in collecting data from IoT sensors, transmitting data, and configuring your own databases. This book is an exploration of IoT’s inner workings, guiding you through the process of setting up an end-to-end system that you can employ to prototype your own IoT solutions, using easy-to-follow examples. It begins with a general overview of the Arduino ecosystem, acquainting you with various sensors and shields and unveiling the art of data collection. You’ll then explore data formats and methods to store data, both locally and on database servers. As you progress through the chapters, you’ll learn how to set up REST and MQTT infrastructure to communicate with databases and get hands-on with LoRaWAN, Ethernet, cellular, HC-12, and RS-485. The final chapters are your training ground for real-world projects, imparting the essential knowledge you need to tackle complex challenges with confidence. By the end of this Arduino book, you'll have seamlessly configured an end-to-end system, all while immersing yourself in practical scenarios that bring the world of IoT to life.
Table of Contents (20 chapters)
Part 1:Introduction to Arduino and Sensor Data
Part 2:Sending Data
Part 3: Miscellaneous Topics

Learning about certificate authorities

A CA is a trusted third party that issues certificates. These certificates are used to verify the identity of a computer or a website, as well as for encrypting and decrypting data.

While you can issue your own certificates, these are only for your private use. When you consider a website that you access using HTTPS, the web server uses a digital certificate that is globally recognized. The essence of the certificate is to confirm to others that the site they are visiting is what it claims to be.

The certificate contains the identity information of the entity that it is issued to, along with the entity’s public encryption key. This key is used by browsers to encrypt and decrypt data that is passed along between web/application servers and browsers/clients.

But how can you get a globally acceptable digital certificate?

Let’s Encrypt

Let’s Encrypt is a non-profit that makes obtaining certificates relatively easy...