Developing CoAP applications for Thread networks with Zephyr This book will guide you through the operation of Thread, the setup of a Thread network, and the creation of your own Zephyr-based OpenThread applications to use it. You’ll acquire knowledge on: The capture of network packets on Thread networks using Wireshark and the nRF Sniffer for 802.15.4. Network simulation with the OpenThread Network Simulator. Connecting a Thread network to a non-Thread network using a Thread Border Router. The basics of Thread networking, including device roles and types, as well as the diverse types of unicast and multicast IPv6 addresses used in a Thread network. The mechanisms behind network discovery, DNS queries, NAT64, and multicast addresses. The process of joining a Thread network using network commissioning. CoAP servers and clients and their OpenThread API. Service registration and discovery. Securing CoAP messages with DTLS, using a pre-shared key or X.509 certificates. Investigating and optimizing a Thread device’s power consumption. Once you‘ve set up a Thread network with some devices and tried connecting and disconnecting them, you’ll have gained a good insight into the functionality of a Thread network, including its self-healing capabilities. After you’ve experimented with all code examples in this book, you’ll also have gained useful programming experience using the OpenThread API and CoAP.

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De Raspberry Pi Bumper is een opklikbare siliconen hoes die de onderkant en randen van de Raspberry Pi 5 beschermt. Kenmerken Flexibele siliconenrubberen bumper uit één stuk Maakt gemakkelijke toegang tot de aan/uit-knop mogelijk Bevestigingsgaten blijven toegankelijk onder de bumper Downloads Datasheet

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Technology is constantly changing. New microcontrollers become available every year and old ones become redundant. The one thing that has stayed the same is the C programming language used to program these microcontrollers. If you would like to learn this standard language to program microcontrollers, then this book is for you! ARM microcontrollers are available from a large number of manufacturers. They are 32-bit microcontrollers and usually contain a decent amount of memory and a large number of on-chip peripherals. Although this book concentrates on ARM microcontrollers from Atmel, the C programming language applies equally to other manufacturer’s ARMs as well as other microcontrollers. Features of this book Use only free or open source software. Learn how to download, set up and use free C programming tools. Start learning the C language to write simple PC programs before tackling embedded programming - no need to buy an embedded system right away! Start learning to program from the very first chapter with simple programs and slowly build from there. No programming experience is necessary! Learn by doing - type and run the example programs and exercises. Sample programs and exercises can be downloaded from the Internet. A fun way to learn the C programming language. Ideal for electronic hobbyists, students and engineers wanting to learn the C programming language in an embedded environment on ARM microcontrollers.

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Develop innovative hardware-based projects in C The Raspberry Pi has traditionally been programmed using Python. Although this is a very powerful language, many programmers may not be familiar with it. C on the other hand is perhaps the most commonly used programming language and all embedded microcontrollers can be programmed using it. The C language is taught in most technical colleges and universities and almost all engineering students are familiar with using it with their projects. This book is about using the Raspberry Pi with C to develop a range of hardware-based projects. Two of the most popular C libraries, wiringPi and pigpio are used. The book starts with an introduction to C and most students and newcomers will find this chapter invaluable. Many projects are provided in the book, including using Wi-Fi and Bluetooth to establish communication with smartphones. Many sensor and hardware-based projects are included. Both wiringPi and pigpio libraries are used in all projects. Complete program listings are given with full explanations. All projects have been fully tested and work. The following hardware-based projects are provided in the book: Using sensors Using LCDs I²C and SPI buses Serial communication Multitasking External and timer interrupts Using Wi-Fi Webservers Communicating with smartphones Using Bluetooth Sending data to the cloud Program listings of all Raspberry Pi projects developed in this book are available on the Elektor website. Readers can download and use these programs in their projects. Alternatively, they can customize them to suit their applications.

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Technology is constantly changing. New microcontrollers become available every year. The one thing that has stayed the same is the C programming language used to program these microcontrollers. If you would like to learn this standard language to program microcontrollers, then this book is for you! Arduino is the hardware platform used to teach the C programming language as Arduino boards are available worldwide and contain the popular AVR microcontrollers from Atmel. Atmel Studio is used as the development environment for writing C programs for AVR microcontrollers. It is a full-featured integrated development environment (IDE) that uses the GCC C software tools for AVR microcontrollers and is free to download. At a glance: Start learning to program from the very first chapter No programming experience is necessary Learn by doing – type and run the example programs A fun way to learn the C programming language Ideal for electronic hobbyists, students and engineers wanting to learn the C programming language in an embedded environment on AVR microcontrollers Use the free full-featured Atmel Studio IDE software for Windows Write C programs for 8-bit AVR microcontrollers as found on the Arduino Uno and MEGA boards Example code runs on Arduino Uno and Arduino MEGA 2560 boards and can be adapted to run on other AVR microcontrollers or boards Use the AVR Dragon programmer/debugger in conjunction with Atmel Studio to debug C programs

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This e-book (pdf), a software-only follow up to the best-selling Elektor Visual Studio C# range of books, is aimed at Engineers, Scientists and Enthusiasts who want to learn about the C# language and development environment. It covers steps from installation, the .NET framework and object oriented programming, through to more advanced concepts including database applications, threading and multi-tasking, internet/network communications and writing DLLs. The DirectX chapters also include video capture. The e-book concludes with several chapters on writing Android applications in C# using the Xamarin add-on. This e-book is based on the Visual Studio 2015 development environment and latest C# additions including WPF applications, LINQ queries, Charts and new commands such as await and async. The latest Visual Studio debugging features (PerfTips, Diagnostic Tool window and IntellTrace) are covered. Finally, the Android chapters include GPS, E-mail and SMS applications. Additionally, the e-book provides free on-line access to extensive, well-documented examples — in a try for yourself style — together with links to the author’s videos, guiding you through the necessary steps to get the expected results.

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39 Experiments with Raspberry Pi and Arduino This book is about Raspberry Pi 3 and Arduino camera projects. The book explains in simple terms and with tested and working example projects, how to configure and use a Raspberry Pi camera and USB based webcam in camera-based projects using a Raspberry Pi. Example projects are given to capture images, create timelapse photography, record video, use the camera and Raspberry Pi in security and surveillance applications, post images to Twitter, record wildlife, stream live video to YouTube, use a night camera, send pictures to smartphones, face and eye detection, colour and shape recognition, number plate recognition, barcode recognition and many more. Installation and use of popular image processing libraries and software including OpenCV, SimpleCV, and OpenALPR are explained in detail using a Raspberry Pi. The book also explains in detail how to use a camera on an Arduino development board to capture images and then save them on a microSD card. All projects given in this book have been fully tested and are working. Program listings for all Raspberry Pi and Arduino projects used in this book are available for download on the Elektor website.

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Elektronische systemen in een voertuig worden steeds belangrijker. Dit wordt mede veroorzaakt door de toenemende milieu- en veiligheidseisen en de wensen ten aanzien van het comfort. Dit leidt niet alleen tot een toename van het aantal regeleenheden (tot 80 stuks in een enkel voertuig) maar deze regeleenheden, die vaak van verschillende leveranciers zijn, moeten ook met elkaar communiceren. Vanaf 2008 is het voor nieuwe voertuigen die voor typegoedkeuring worden aangeboden, verplicht om ten aanzien van emissiegerelateerde storingen via de CAN-bus met een externe diagnosetester te communiceren, volgens een door Europese regelgeving vastgestelde norm. Er wordt uitgebreid aandacht besteed aan de opbouw en werking van het CAN-protocol, gezien vanuit zowel de software als de hardware. Onderwerpen die aan bod komen zijn onder andere de opbouw van een CAN-bericht, de prioriteitsregeling en de fysieke verbinding. Behalve de CAN-bus komt ook EOBD via de CAN-bus uitgebreid aan de orde: hoe werkt EOBD, en welke diagnostische gegevens zijn met behulp van een diagnosetester toegankelijk. De ‘rode draad’ wordt gevormd door de regelgeving van de Europese Unie en de internationale ISO- en SAE-normen. Deze regelgeving en normen moeten er voor zorgen dat de milieubelasting tot een minimum wordt beperkt en een milieugerelateerde storing snel gesignaleerd (en gerepareerd) wordt. Na het doorlezen en bestuderen van de inhoud wordt de CAN-bus en de diagnose via de CAN-bus voor iedereen inzichtelijk; de hobbyist die een CAN-bericht wil begrijpen en eventueel een eigen CAN-bussysteem wil opzetten, de sleutelaar die de storingen van zijn eigen voertuig wil uitlezen en repareren, maar ook de professionele diagnosetechnicus die een lastige fout moet opsporen. Daarnaast kunnen studenten en ontwikkelaars van CAN- en EOBD-applicaties door bestuderen en vooral experimenteren een basis leggen voor eigen toepassingen.

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Tout sur les protocoles et leur mise en œuvre avec Arduino Initialement destiné aux véhicules routiers, le réseau CAN (« Controller Area Network ») et son successeur le réseau CAN FD (« Flexible Data ») ont vu leurs champs d’application s’élargir à de nouveaux domaines. L’industrie propose de nombreux modules microcontrôleurs dotés d’une interface CAN et/ou CAN FD. L’environnement de développement Arduino a démocratisé la programmation de ces modules et il existe des bibliothèques qui implémentent un pilote CAN et/ou un pilote CAN FD. La première partie dresse un rapide historique des réseaux CAN et CAN FD et expose la problématique des lignes de transmission en abordant succinctement leur théorie et présentant des résultats de simulation Spice. La deuxième partie est consacrée au réseau CAN, en détaillant successivement la fonction logique du réseau, les transcepteurs, les contrôleurs, la topologie la plus classique (le bus) et d’autres moins courantes, les répéteurs et les passerelles. Les aspects particuliers du protocole, tels que le bit stuffing, l’arbitrage, les trames d’erreur, la détection des erreurs sont exposés. La discussion de la fiabilité du protocole est illustrée par des exemples mettant en évidence ses faiblesses. La troisième partie présente le protocole CAN FD, ses deux variantes CAN FD ISO et CAN FD non ISO, leurs fiabilités, leurs faiblesses, mises en évidence par des exemples. Différents transcepteurs et contrôleurs CAN FD sont décrits. La quatrième partie est dédiée aux applications : comment utiliser les services d’un pilote, concevoir une messagerie, utiliser un analyseur logique. Deux exemples d’application terminent cette partie. Ce livre s’adresse aux amateurs et aux ingénieurs non spécialistes pour comprendre les possibilités qu’offre un réseau CAN et comment on le met en œuvre. Un enseignant trouvera des informations pour approfondir ses connaissances et pour concevoir des travaux pratiques. Une connaissance des microcontrôleurs, de leur programmation, de l’électronique numérique aidera à la lecture des schémas. La connaissance du langage C++ et du langage de simulation électronique Spice facilitera la compréhension des programmes qui sont décrits dans le livre. Tous les codes source sont disponibles sur le dépôt GitHub de l’auteur. Téléchargements GitHub

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TINA Design Suite is a professional, powerful and affordable circuit simulator. It is a circuit designer and PCB design software package for analysing, designing, and real-time testing of analogue, digital, IBIS, VHDL, Verilog, Verilog AMS, SystemC, MCU, and mixed electronic circuits and their PCB layouts. In this book, top-selling Elektor author, Prof. Dr. Dogan Ibrahim aims to teach the design and analysis of electrical and electronic circuits and develop PCB boards using both TINA and TINACloud. The book is aimed at electrical/electronic engineers, undergraduate electronic/electrical engineering students at technical colleges and universities, postgraduate and research students, teachers, and hobbyists. Many tested and working simulation examples are provided covering most fields of analogue and digital electrical/electronic engineering. These include AC and DC circuits, diodes, zener diodes, transistor circuits, operational amplifiers, ladder diagrams, 3-phase circuits, mutual inductance, rectifier circuits, oscillators, active and passive filter circuits, digital logic, VHDL, MCUs, switch-mode power supplies, PCB design, Fourier series, and spectrum. Readers do not need to have any programming experience unless they wish to simulate complex MCU circuits.

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