CD-ROM ELEKTOR 98

Résumé : This is a highly-practical guide for Hobbyists, Engineers and Scientists wishing to build measurement and control systems to be used in conjunction with a local or even remote Personal Computer. The book covers both hardware and software aspects of designing typical embedded systems based on personal computers running the Windows operating system. It's use of modern techniques in detailed, numerous examples has been designed to show clearly how straightforward it can be to create the interfaces between digital and analog electronics, programming and Web-design. Hardware developers will discover how use of latest high-level language constructs overcomes the need for specialist programming skills. Software developers will appreciate how a better understanding of circuits will enable them to optimize related programs, including drivers. There is no need to buy special equipment or expensive software tools in order to create embedded projects covered in this book. You can build such quality systems quickly using popular low-cost electronic components and free, distributed software tools. Some knowledge of basic electronics plus the very basics of C and C# programming only is required. With an emphasis on learning by doing, readers are encouraged by examples to program with ease; the book provides clear guidelines as to the appropriate programming techniques "on the fly". Complete and well-documented source code is provided for all projects. If you want to learn how to quickly build applications able to collect, process and display data on a PC from various analog and digital sensors, then even how to pass this data via a network and more then this is the book for you

Résumé : Le monde de l'électronique est à la fois vaste et... tout petit ! Voici un livre qui confirme ces deux constatations contradictoires. En effet, en électronique, tout touche à tout, d'une manière ou d'une autre. Le plus petit détail peut avoir les plus grandes conséquences, et pas toujours celles que l'on attendrait. L'objectif de l'auteur de cette série d'articles autonomes intitulée hors-circuits, réunis ici en un livre, n'est pas de vous tenir par la main. Robert Lacoste, électronicien professionnel de haut-niveau, vous donne des pistes pour comprendre ce qui paraît mystérieux. Il vous guide juste assez pour vous permettre ensuite de progresser tout seul. Avec lui, non seulement vous repousserez vos propres limites, mais saurez aussi détecter celles du matériel et du logiciel que vous utilisez. En vous invitant à repasser par les notions de physique de base, il vous permettra de séparer les véritables progrès techniques des laïus commerciaux. Les bases, ça peut mener loin D'où vient la sensibilité d'un récepteur d'ondes radio ? Pourquoi le téléchargement d'une vidéo sur votre portable est-il beaucoup plus lent à la campagne qu'en centre-ville ? Si pour vous la réponse technique à des questions comme celles-ci (et bien d'autres que vous n'osez peut-être même pas vous poser) n'est pas évidente, ce livre vous aidera à y voir plus clair. Oui, on peut être à l'aise avec les microcontrôleurs, mais dérouté par le comportement d'un simple transistor. Vous sentez-vous concerné par de telles interrogations ? Ce livre est donc pour vous. Sans aucune formule mathématique qui ne soit pas à la portée d'un lycéen, il balaye tout le champ de l'électronique, depuis l'analogique jusqu'au traitement numérique du signal en passant par le domaine si redouté des hautes-fréquences. La théorie ne s'y éloigne jamais beaucoup de la loi d'Ohm ! Avec des mots simples, l'auteur explique comment ça marche, pourquoi parfois ça ne marche pas comme on veut, et comment mieux utiliser différentes techniques dans vos propres projets pour que ça marche.

Résumé : This book is about a state of the art tool, Flowcode, and how you can use Flowcode to develop microcontroller applications. The book starts very simply with a tutorial project and step-by-step instructions. As you go along the projects increase in difficulty and the new concepts are explained. Each project has a clear description of both hardware and software with pictures and diagrams, which explain not just how things are done but also why. Ail sources are available for free download. Since Flowcode is a high level language the intricacies of microcontroller programming are hidden from view. For that reason it doesn't make much difference whether the program is meant for a PIC, AVR or ARM microcontroller. On a high level the programs for these microcontrollers, although vastly different in internal structure, are identical. For that reason this book is on microcontroller application design in general, not just for one type of microcontroller. If you don't own the microcontroller described in a project you can usually convert it to another microcontroller quite easily. E-blocks will be used as hardware for the projects in this book. This way the hardware can be put together quickly and reliably. Fully tested units simply connect together using connectors or short flat ribbon tables to form completed projects. This book covers 45 exciting and fun projects for beginners and experts such as:

Résumé : The newcomer to Microchip's PIC microcontrollers invariably gets an LED to flash as their first attempt to master this technology. you can use just a simple LED indicator in order to show that your initial attempt is working, which will give you confidence to move forward. This is how the book begins - simple programs to flash LEDs, and eventually by stages to use other display indicators such as the 7-segment display, alphanumeric liquid crystal displays and eventually a colour graphic LCD. As the reader progresses through the book, bigger and upgraded PIC chips are introduced, with full circuit diagrams and source code, both in assembler and C. In addition, a small tutorial is included using the MPLAB programming environment, together with the EAGLE schematic and PCB design package to enable readers to create their own designs using the book's many case studies as working examples to work from.