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

Working with databases

You can use a database to keep information organized. Databases are frequently backed by an engine called the database server. How a Database server does its job is not as important as what a database server empowers you to do.

While we have been able to store data on a file, we need to ask ourselves, “What happens if the file gets corrupted? How do we provide backup for this data?” database servers can provide redundancy, replication, and high availability for our data when we need it.

You can use a database server to store and retrieve information when you need to. When you retrieve information from a database, you specify what you want and not how to get it. This is different from how we have done things so far, where we have to program the microcontroller to do exactly what we want the way we want it. When we tell a microcontroller how to do something, that style of programming is called imperative. When we let the database determine how...