Pradeeka Seneviratne - Beginning LoRa Radio Networks with Arduino: Build Long Range, Low Power Wireless IoT Networks
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Beginning LoRa Radio Networks with Arduino: Build Long Range, Low Power Wireless IoT Networks: summary, description and annotation
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Create your own LoRa wireless projects for non-industrial use and gain a strong basic understanding of the LoRa technology, LoRa WAN, and LPWAN.
Youll start by building your first LoRa wireless channel and then move on to various interesting projects such as setting up networks with a LoRa gateway, communicating with IoT servers using RESTful API and MQTT protocol, and real-time GPS tracking.
With LoRa wireless and LoRaWAN, you can build a wide array of applications in the area of smart agriculture, smart cities, smart environment, smart healthcare, smart homes and buildings, smart industrial control, smart metering, smart supply chain and logistics. Beginning LoRa Radio Networks with Arduino provides a practical introduction and uses affordable and easy to obtain hardware to build projects with the Arduino development environment.
What Youll Learn
Understand the hardware need to build LoRaWAN
Use the Arduino development environment to write code
Connect to Arduino hardware and upload programs and communicate with them
Setup networks with LoRa gateway
Show real time track with tail, and path history
Who This Book Is For
Inventors, hackers, crafters, students, hobbyists, and scientists
Pradeeka Seneviratne: author's other books
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Any source code or other supplementary material referenced by the author in this book is available to readers on GitHub via the books product page, located at www.apress.com/978-1-4842-4356-5 . For more detailed information, please visit www.apress.com/source-code .
is a software engineer with more than ten years of experience in computer programming and systems design. He is an expert in the development of Arduino and Raspberry Pibased embedded systems and is currently a full-time software engineer working with embedded systems and highly scalable technologies. Previously, Pradeeka worked as a software engineer for several IT infrastructure and technology servicing companies. He is the author of several books, including Beginning BBC micro:bit (Apress), Building Arduino PLCs (Apress), and Internet of Things with Arduino Blueprints (Packt).
is a senior consultant and a senior analyst/developer using Microsoft technologies. He works at BluArancio S.p.A ( www.bluarancio.com ) as senior analyst/developer and Microsoft Dynamics CRM specialist. He is a Microsoft Certified Solution Developer for .NET, a Microsoft Certified Application Developer for .NET, a Microsoft Certified Professional, and a prolific author and technical reviewer. Over the past ten years, hes written articles for Italian and international magazines and co-authored more than ten books on a variety of computer topics.
Radios are exciting pieces of hardware that can be used to build wireless communication links. Radios used to listen to voice and audio are known as receivers ; your home radio, for example, can only tune into and receive radio stations. Radios that can be used to transmit voice and audio are known as transmitters; radio stations use transmitters to broadcast programs. Radios that can do both (transmit and receive) are known as transceivers ; a walkie-talkie is an example of a two-way radio transceiver.
Transceivers use different types of modulations to send and receive data. The network coverage and data capacity are highly dependent on the frequency and type of modulation used. By using LoRa modulation, you can send data to long distances.
By reading this chapter, you will gain a basic understanding of LoRa, LoRaWAN, and LoRaWANs architecture.
The LoRa spread spectrum is a patented modulation developed by Semtech ( https://www.semtech.com/ ) based on the chirp spread spectrum (CSS) modulation. LoRa (short for long range) provides long-range and low-power consumption, a low data rate, and secure data transmission. LoRa can be used with public, private, or hybrid networks to achieve a greater range than cellular networks. LoRa technology can easily integrate with existing networks and enables low-cost, battery-operated Internet of Things (IoT) applications.
Lets try to understand how the LoRa Spread Spectrum Modulation works. A plain radio signal carries no information besides the transmitter being left on. The signal must be modified in some way to convey information. There are several ways in which this can be done. Two of the most popular methods are to modify the amplitude and to modify the frequency.
Amplitude modulation, including the information signal, carrier signal, and AM signal (source: https://en.wikipedia.org/wiki/Amplitude_modulation#/media/File:Illustration_of_Amplitude_Modulation.png by Ivan Akira, https://creativecommons.org/licenses/by-sa/3.0 )
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