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

Introducing RS-485

RS-485 is a standard for serial communication that allows multiple devices to communicate on the same bus. It is a differential voltage signaling standard, which means that it uses two wires to transmit data. This makes it less susceptible to noise than other serial communication standards, such as RS-232.

RS-485 is a half-duplex communication method, so, as such, only one device can transmit at a time. You can still use it to create a multi-drop network where multiple devices can share the same bus. You can utilize it in the following settings:

  • Industrial automation: RS-485 is used in industrial automation and control systems to communicate between devices such as Programmable Logic Controllers (PLCs), sensors, and actuators
  • Building automation: RS-485 is used to control Humidity Ventilation and Air Conditioning (HVAC) systems, as well as lights, security, and access control
  • Medical equipment: RS-485 is used to communicate between devices such...