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

Introduction to LoRa and LoRaWAN

A Wide Area Network (WAN) can be loosely defined as any technology that can connect devices across a large geographical area, and in some cases, even across the world. Working backward, we see that LoRaWAN is a WAN that we can set up using LoRA, which is a long-range, low-power technology. LoRaWAN is a type of Low-Power WAN (LPWAN) connectivity protocol. LoRa is the physical communication layer that powers LoRaWAN.

LPWAN setups do not provide a large bandwidth, meaning that devices can only send small amounts of data at any point in time, and usually at a periodic interval, such as hourly. It is important to note that you cannot send a continuous stream of data on a LoRaWAN network. You can’t send accelerometer data, for example. You also can’t send images and videos on the network. If you wish to conserve power, you will need to use a fire-and-forget methodology where you program devices to send messages without waiting for confirmation...