CD-ROM DATATHEQUE ELEKTOR CI

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.

The mouse is one of the best proven, widely used and inexpensive man-machine interfaces ever devised, yet its presence in the world of embedded systems is still a rarity. Indeed, there are few embedded engineers today having practical experience of how to implement the hardware and software required to 'enable' mouse input. In Mouse Interfacing with USB and PS/2, the concepts needed are thoroughly explained. The practical development which stems from this knowledge is soon explored, with the feedback from each step providing impetus for the next. This book describes in-depth how to connect the mouse into new embedded applications. It details the two main interface methods, PS/2 and USB, and offers applications guidance with hardware and software examples plus tips on interfacing the mouse to typical microcontrollers. A wide range of topics is explored, including: Ballistic profiles for fast-yet-precise response ; A four-channel, millivolt-precision voltage reference ; USB descriptors; A variety of examples all with fully documented source-code. If you need to interface an embedded system to a mouse (PS/2 or USB), then this book will prove an invaluble tool. A wealth of clear illustrations enhance this highly readable text.

Résumé : This book contains 23 special and exciting artificiel intelligence machine-learning projects, for microcontroller and PC. Learn how to set up a neural network in a microcontroller, and how to make the network self-learning. Discover how you con breed robots, and how changing a fitness function results in a totally different behavior. Find out how a PC program exposes your weak spots in a game, and ruthlessly exploits them. Build a free-will robot, or have one clean your floor ! Example projects from the book : Microcontroller that learns what your favourite color is. Robot wandering about the house looking for someone to play with. Bred robot program that is incapable of crossing a black line. Microcontroller that learns how to play a game until You just can't win anymore. PC that programs a microcontroller all by itself. Complete with free software that you can download containing : All source code for the microcontroller. All sources of compiled PC programs (MS Windows). JAL programming language, with special editor and extension libraries. Robot breed program. Plus a support webpage with links, errata and FAQ. Several artificial intelligence techniques are discussed and used in projects such as expert system, neural network, subsumption, emerging behavior, genetic algorithm, cellular automata and roulette brains. Every project has clear instructions and pictures so you can start immediately. Suggestions and literature links allow you to go way beyond the scope of the book. Even after you have built all the projects contained within, this book will remain a valuable reference guide to keep next to your PC. A unique book for anyone with an interest in artificial intelligence and machine learning.

Résumé : The PC has longtime outgrown its function as a pure computer and has become an all-purpose machine. This book is targeted towards those people that want to control existing or self-built hardware from their computer. Using Visual Basic as Rapid Application Development tool we will take you on a journey to unlock the world beyond the connectors of the PC. After familiarizing yourself with Visual Basic, its development environment and the toolset it offers, items such as serial communications, printer ports, bitbanging, protocol emulation, ISA, USB and Ethernet interfacing and the remote control of test-equipment over the GPIB bus are covered in extent. Each topic is accompanied by clear, ready to run code, and where necessary, schematics are provided that will get your project up to speed in no time. This book will show you advanced things like: using tools like Debug to find hardware addresses, setting up remote communication using TCP/IP and UDP sockets and even writing your own internet servers. Or how about connecting your own block of hardware over USB or Ethernet and controlling it from Visual Basic. Other things like inter-program communication, DDE and the new graphics interface of Windows XP are covered as well. All examples are ready to compile using Visual Basic 5.0, 6.0, NET or 2005. Extensive coverage is given on the differences between what could be called Visual Basic Classic and Visual Basic NET / 2005.