Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4x4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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Livre : Mastering the Arduino Uno R4 Basée sur le processeur ATmega328P 8 bits économique, la carte Arduino Uno R3 est sans doute la plus populaire de la famille Arduino, et ce modèle robuste nous accompagne depuis de nombreuses années. Onze ans plus tard, son successeur tant attendu, l'Arduino Uno R4, a vu le jour. Elle est conçue autour d'un microcontrôleur Arm Cortex-M4 32 bits cadencé à 48 MHz et offre une mémoire SRAM et Flash considérablement étendue. De plus, un convertisseur analogique-numérique (CAN) plus précis et un nouveau convertisseur numérique-analogique (CNA) ont été ajoutés. La carte Uno R4 prend également en charge le bus CAN grâce à une interface dédiée. Deux versions de la carte sont disponibles : Uno R4 Minima et Uno R4 WiFi. Ce livre explique comment utiliser ces nouvelles cartes pour développer de nombreux projets variés et intéressants avec seulement quelques composants et modules externes. Tous les projets décrits dans ce livre ont été entièrement testés sur la carte Uno R4 Minima ou la carte Uno R4 WiFi, selon le cas. Les sujets abordés incluent la lecture, le contrôle et le pilotage de nombreux composants et modules du kit ainsi que sur la carte Uno R4 correspondante, y compris LED Afficheurs à 7 segments (utilisant des interruptions programmées) LCD Capteurs Lecteur RFID Clavier 4×4 Horloge en temps réel (RTC) Joystick Matrice de LED 8×8 Moteurs DAC (convertisseur numérique-analogique) Matrice LED Connectivité Wi-Fi UART série Bus CAN Contrôleur et récepteur infrarouge Simulateurs … le tout de manière créative et pédagogique, le fonctionnement du projet et les logiciels associés étant expliqués en détail. Arduino Uno R4 WiFi La carte Arduino Uno R4 est équipée du processeur Renesas RA4M1 ARM Cortex-M4 32 bits, offrant une puissance de traitement, une mémoire et des fonctionnalités considérablement améliorées. La version WiFi intègre un module WiFi ESP32-S3 en plus du RA4M1, élargissant ainsi les possibilités créatives des makers et des ingénieurs. L'Arduino Uno R4 fonctionne à 48 MHz, soit trois fois plus que la populaire Uno R3. De plus, la mémoire SRAM a été augmentée de 2 Ko à 32 Ko et la mémoire flash de 32 Ko à 256 Ko afin de prendre en charge des projets plus complexes. Suite aux retours de la communauté, le port USB est désormais de type USB-C et la tension d'alimentation maximale a été portée à 24 V, avec une conception thermique optimisée. La carte comprend un bus CAN et un port SPI, permettant aux utilisateurs de réduire le câblage et d'effectuer des tâches en parallèle en connectant plusieurs shields. Un convertisseur numérique-analogique (CNA) analogique 12 bits est également intégré. Spécifications Microcontrôleur Renesas RA4M1 (ARM Cortex-M4) USB USB-C Port de programmation Broches Broches d'E/S numériques 14 Broches Broches d'entrée analogiques 6 CNA 1 TCR 1 Broches PWM 6 Communication UART 1x I²C 1x SPI 1x Connecteur I²C Qwiic 1x CAN 1x Bus CAN Alimentation Tension de fonctionnement du circuit 5 V Tension d'entrée (VIN) 6-24 V Courant continu par broche d'E/S 8 mA Fréquence d'horloge Noyau principal 48 MHz Mémoire RA4M1 256 ko Flash, 32 ko RAM Matrice LED 12 x 8 (96 LED rouges) Dimensions 68,9 x 53,4 mm Téléchargements Datasheet Schematics Cette offre groupée contient : Livre : Mastering the Arduino Uno R4 (d'une valeur de 45 €) Arduino Uno R4 WiFi (d'une valeur de 30 €)

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Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4x4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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Mastering the Language and the Development Platform Many people would like to learn Java but getting started is not easy since programming with Java requires at least two things: mastering the programming language and the development environment. With the help of many examples, this book shows how the language is structured. In addition, it employs the Eclipse development environment as an example of a powerful tool to teach developing Java programs. In Basics, the first part of the book, you acquire your Java and Eclipse basic knowledge. This part lays the programming foundations, gives you an overview of Java technology, and shows you what is special about object-oriented programming. In the second part called Java Language, everything revolves around the subtleties of the Java language and this is where the first small Java applications are created, aided by a fine blend of the knowledge part and practical exercises. Java Technology is both the name and the focus of the third part which also introduces you to the rules to observe when programming, what class libraries are and what advantages they have. In addition, you will learn how to test programs, what algorithms are, and how to program them. The fourth part, Java Projects, enables you to apply all the previous elements in an application with a graphical user interface. The project shows how to develop a larger application piece by piece with the Eclipse development environment. The Appendix concludes with a section on frequent errors that can occur when working with Eclipse, and a Glossary.

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Mastering the Language and the Development Platform Many people would like to learn Java but getting started is not easy since programming with Java requires at least two things: mastering the programming language and the development environment. With the help of many examples, this book shows how the language is structured. In addition, it employs the Eclipse development environment as an example of a powerful tool to teach developing Java programs. In Basics, the first part of the book, you acquire your Java and Eclipse basic knowledge. This part lays the programming foundations, gives you an overview of Java technology, and shows you what is special about object-oriented programming. In the second part called Java Language, everything revolves around the subtleties of the Java language and this is where the first small Java applications are created, aided by a fine blend of the knowledge part and practical exercises. Java Technology is both the name and the focus of the third part which also introduces you to the rules to observe when programming, what class libraries are and what advantages they have. In addition, you will learn how to test programs, what algorithms are, and how to program them. The fourth part, Java Projects, enables you to apply all the previous elements in an application with a graphical user interface. The project shows how to develop a larger application piece by piece with the Eclipse development environment. The Appendix concludes with a section on frequent errors that can occur when working with Eclipse, and a Glossary.

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Practical Introduction to 3D Modeling from Enclosure to Front Panel Embedding a vintage component, creating a professional looking home for a circuit board, or even designing a complex apparatus complete with a chassis – these and many other challenges turn into a stimulating pleasure with FreeCAD. Once you have internalized the basic processes, there are virtually no limits to your imagination. Starting to use a new software is never straightforward – especially with a tool as versatile as FreeCAD. Manageable, but at the same time easily usable individual components provide the starting point in this book. Putting these components together later results in assemblies. In the FreeCAD universe, a workable trajectory is demonstrated. The described procedure is illustrative so the examples are easily applied to custom tasks. The devices were made by the author and illustrated with photos. Creating a 3D design is requiring some effort but the initial investment pays off soon. Besides the impressive spatial representation of the projects, the extracted drawings yield a solid base for documentation and production. Extended FreeCAD capabilities like the unfolding of sheet metal parts enormously add to efficiency and pushes models forward into practical assembly. Soon you will definitely not want to do without FreeCAD!

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Practical Introduction to 3D Modeling from Enclosure to Front Panel Embedding a vintage component, creating a professional looking home for a circuit board, or even designing a complex apparatus complete with a chassis – these and many other challenges turn into a stimulating pleasure with FreeCAD. Once you have internalized the basic processes, there are virtually no limits to your imagination. Starting to use a new software is never straightforward – especially with a tool as versatile as FreeCAD. Manageable, but at the same time easily usable individual components provide the starting point in this book. Putting these components together later results in assemblies. In the FreeCAD universe, a workable trajectory is demonstrated. The described procedure is illustrative so the examples are easily applied to custom tasks. The devices were made by the author and illustrated with photos. Creating a 3D design is requiring some effort but the initial investment pays off soon. Besides the impressive spatial representation of the projects, the extracted drawings yield a solid base for documentation and production. Extended FreeCAD capabilities like the unfolding of sheet metal parts enormously add to efficiency and pushes models forward into practical assembly. Soon you will definitely not want to do without FreeCAD!

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Le kit de test Super Servo Elektor permet le contrôle des servomoteurs et la mesure de leurs signaux. Il permet le test simultané de quatre servomoteurs. Le testeur est fourni en kit. Tous les composants nécessaires à l'assemblage du dispositif sont fournis dans le kit. Une expérience basique de soudure électronique est nécessaire pour réaliser l'assemblage du kit. Le microcontrôleur est préprogrammé. Le testeur Super Servo est doté de deux modes de fonctionnement: Control/Manual et Measure/Inputs : Dans le mode Control/Manual, le Testeur Super Servo délivre à ses sorties , les signaux de contrôle pour quatre servomoteurs, ou pour un contrôleur de vol ou un contrôleur de vitesse ESC (Electronic Speed Controller) pour moteur sans balai (brushless). Les signaux sont contrôlés par quatre potentiomètres. Dans le mode Measure/Inputs le Testeur Super Servo mesure les signaux des servomoteurs reliés à ses entrées. Ces signaux peuvent par exemple provenir d'un ESC, d'un contrôleur de vol, d'un récepteur ou de tout autre dispositif. Les signaux sont également dirigés vers ses sorties afin de contrôler les servomoteurs, l'ESC ou le contrôleur de vol. Les résultats sont visualisés sur l'écran. Spécifications Modes de fonctionnement Control/Manual et Measure/Inputs (Contrôle manuel et mesures) Nombre de canaux 3 Entrées des signaux des servomoteurs 4 Sorties des signaux vers les servomoteurs 4 Alarme Buzzer & LED Affichage Écran OLED de 0,96' (128 x 32 pixels) Tension d'entrée K5 7-12 V CC Tension d'entrée K1 5-7,5 V CC Courant d'entrée 30 mA (9 VDC sur K5, K1 et K2 non reliés) Dimensions 113 x 66 x 25 mm Poids 60 g Inclus Résistances (0,25 W) R1, R3 1 kΩ, 5% R2, R4, R5, R6, R7, R9, R10 10 kΩ, 5% R8 22 Ω, 5% P1, P2, P3, P4 10 kΩ, potentiomètre vertical linéaire/B Condensateurs C1 100 µF 16 V C2 10 µF 25 V C3, C4, C7 100 nF C5, C6 22 pF Semiconducteurs D1 1N5817 D2 LM385Z-2.5 D3 BZX79-C5V1 IC1 7805 IC2 ATmega328P-PU, programmé LED1 LED, 3 mm, rouge T1 2N7000 Divers BUZ1 Buzzer Piezo avec oscillateur K1, K2 Connecteur à 2 rangées de 12 broches à 90° K5 Connecteur jack K4 Connecteur à 1 rangée de 4 broches K3 Connecteur à 2 rangées de 6 broches S1 Interrupteur à glissière 2P2T S2 Interrupteur à glissière 1P2T X1 Quartz, 16 MHz Support DIP 28 broches pour IC2 Circuit imprimé Elektor Afficheur OLED de 0,96', 128 x 32 pixels, interface I²C à 4 broches Liens Elektor Magazine Elektor Labs

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Space, the final frontier, will become more and more popular. The space industry is continually growing and new products and services will be required. Innovation is needed for the development of this industry. Today it is no longer possible to follow all the events in field of space. The space market is growing and activities are increasing, especially the market for small-satellites. This book wants to help close the gap and encourage electronic engineers to enter into the fascinating field of space electronics. One of the main difficulties is finding people with knowledge of space electronics design. Nowadays companies have to invest a lot of time and resources to instruct electronic engineers with no experience of space. Only a brief and basic introduction of this topic is typically achieved at university in space engineering lectures. Professionals with practical experience and the necessary theoretical knowledge are scarce. Companies from the space sector are searching for staff with knowledge of space electronics. This book will bring space closer aspiring to the space electronic hobbyists.

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If you have the right tools, designing a microprocessor shouldn’t be complicated. The Verilog hardware description language (HDL) is one such tool. It can enable you to depict, simulate, and synthesize an electronic design, and thus increase your productivity by reducing the overall workload associated with a given project.Monte Dalrymple’s Microprocessor Design Using Verilog HDL is a practical guide to processor design in the real world. It presents the Verilog HDL in a straightforward fashion and serves as a detailed introduction to reducing the computer architecture and as an instruction set to practice. You’re led through the microprocessor design process from start to finish, and essential topics ranging from writing in Verilog to debugging and testing are laid bare.The book details the following, and more: Verilog HDL Review: data types, bit widths/labeling, operations, statements, and design hierarchy Verilog Coding Style: files vs. modules, indentation, and design organization Design Work: instruction set architecture, external bus interface, and machine cycle Microarchitecture: design spreadsheet and essential worksheets (e.g., Operation, Instruction Code, and Next State) Writing in Verilog: choosing encoding, assigning states in a state machine, and files (e.g., defines.v, hierarchy.v, machine.v) Debugging, Verification, and Testing: debugging requirements, verification requirements, testing requirements, and the test bench Post Simulation: enhancements and reduction to practice Monte Dalrymple received a BSEE (with highest honors) and an MSEE from the University of California at Berkeley, where he was elected to Phi Beta Kappa. Monte started his career at Zilog, where he designed a number of successful products, including the Serial Communication Controller (SCC) family and the Universal Serial Controller (USC) family. He was also the architect and lead designer of the Z380 microprocessor. Monte started his own company, Systemyde International Corp., in 1995, and has been doing contract design work ever since. He designed all five generations of Rabbit microprocessors, a Z180 clone that is flying on the Juno mission to Jupiter, and a Z8000 clone that flies in a commercial avionics air data computer. Monte holds 16 patents as well as both amateur and commercial radio licenses. Monte wrote 10 articles for Circuit Cellar magazine between 1996 and 2010. He recently completed a side project to replace the CPU in an HP-41C calculator with a modern FPGA-based version.

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Lorsque vous expérimentez régulièrement avec le Raspberry Pi et que vous connectez une variété de matériel externe au port GPIO via le connecteur, il se peut que vous ayez causé des dommages par le passé. La carte tampon Raspberry Pi d'Elektor est là pour éviter cela ! La carte est compatible avec les Raspberry Pi Zero, Zero 2 (W), 3, 4, 5, 400 et 500. Les 26 GPIO sont protégées par des convertisseurs de tension bidirectionnels afin de protéger le Raspberry Pi lors de l'expérimentation de nouveaux circuits. Le circuit imprimé est destiné à être inséré à l'arrière du Raspberry Pi 400/500. Le connecteur à connecter au Raspberry Pi est un réceptacle 40 voies à angle droit (2x20). La platine est seulement un peu plus large. Un câble plat à 40 voies avec des connecteurs 2x20 appropriés peut être connecté au connecteur de sortie du tampon pour expérimenter avec par exemple un circuit sur une plaque d’expérimentation ou sur une platine. Le circuit utilise 4x circuits intégrés TXS0108E de Texas Instruments. Le circuit imprimé peut également être monté sur un Raspberry Pi. Téléchargements Schematics Layout

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Réalisez vos propres projets avec la carte d'apprentissage Elektor Arduino Nano MCCAB Le microcontrôleur est probablement le sous-domaine le plus fascinant de l'électronique. Grâce à la multitude de fonctions qu'il combine sur sa puce, il constitue un outil universel permettant aux développeurs de réaliser leurs projets. Pratiquement tous les appareils d'usage quotidien sont aujourd'hui dotés d'un microcontrôleur. Cependant, pour un débutant en électronique, réaliser ses propres idées avec un microcontrôleur est resté jusqu'à présent une chimère en raison de sa complexité. Le concept Arduino a largement simplifié l'utilisation des microcontrôleurs, de sorte que même les débutant peuvent désormais réaliser leurs propres idées électroniques avec un microcontrôleur. Livre et matériel dans un pack : apprendre par la pratique Ce livre, qui est inclus dans le pack, montre comment vous pouvez réaliser vos propres projets avec un microcontrôleur, même sans grande expérience en électronique et en langages de programmation. Il s'agit d'un cours pratique sur les microcontrôleurs pour débutants, car après un aperçu des éléments internes du microcontrôleur et une introduction au langage de programmation C, le cours se concentre sur les exercices pratiques. Le lecteur acquiert les connaissances nécessaires en apprenant par la pratique : dans la vaste section pratique comprenant 12 projets et 46 exercices, ce qui est appris dans la première partie du livre est étayé par de nombreux exemples. Les exercices sont structurés de telle sorte que l'utilisateur se voit confier une tâche à résoudre en utilisant les connaissances acquises dans la partie théorique du livre. Chaque exercice est suivi d'un exemple de solution qui est expliqué et commenté en détail, ce qui aide l'utilisateur à résoudre les problèmes et à les comparer avec sa propre solution. Arduino IDE L'Arduino IDE est un environnement de développement logiciel qui peut être téléchargé gratuitement sur votre PC et qui contient l'ensemble des logiciels nécessaires à la réalisation de vos propres projets de microcontrôleurs. Vous écrivez vos programmes (sketch) avec l'éditeur de l'IDE dans le langage de programmation C. Vous les traduisez en bits et octets que le microcontrôleur comprend à l'aide du compilateur intégré à l'IDE Arduino, puis vous les chargez dans la mémoire du microcontrôleur sur la carte d'apprentissage Elektor Arduino MCCAB Nano à l'aide d'un câble USB. Interroger ou contrôler des capteurs, des moteurs ou des ensembles externes Outre un module microcontrôleur Arduino Nano, la carte d'apprentissage Elektor Arduino Nano MCCAB contient tous les composants nécessaires aux exercices, tels que des diodes électroluminescentes, des interrupteurs, des boutons-poussoirs, des émetteurs de signaux acoustiques, etc. Ce système de formation à microcontrôleur permet également d'interroger ou de commander des capteurs, des moteurs ou des assemblages externes. Spécifications (Carte de formation Arduino Nano MCCAB) Alimentation électrique Via la connexion USB du PC connecté ou un bloc d'alimentation externe (non inclus) Tension de fonctionnement +5 Vcc Tension d'entrée Toutes les entrées 0 V to +5 V VX1 and VX2 +8 V to +12 V (uniquement en cas d'utilisation d'une alimentation externe) Périphérie du matériel LCD 2x16 caractères Potentiomètre P1 & P2 JP3 : sélection de la tension de fonctionnement de P1 et P2 Distributeur SV4 : Distributeur pour les tensions de fonctionnementSV5, SV6 : Distributeur pour les entrées/sorties du microcontrôleur Interrupteurs et boutons Bouton RESET sur le module Arduino Nano 6x interrupteurs à bouton poussoir K1 ... K6 6x interrupteurs à glissière S1 ... S6 JP2 : Connexion des interrupteurs avec les entrées du microcontrôleur Buzzer Buzzer piézo Buzzer1 avec cavalier sur JP6 Voyants lumineux 11 x LED : Indicateur d'état des entrées/sorties LED L sur le module Arduino Nano, connectée au GPIO D13 JP6 : Connexion des LED LD10 ... LD20 avec les GPIO D2 ... D12 Interfaces sérieSPI ET I²C JP4 : Sélection du signal à la broche X du connecteur SPI SV12 SV9 à SV12 : interface SPI (3,3 V/5 V) ou interface I²C Sortie de commutation pour les appareils externes SV1, SV7 : sortie de commutation (maximum +24 V/160 mA, alimentation externe) SV2 : 2x13 connecteurs pour la connexion de modules externes Matrice de 3x3 LED(9 LED rouges) SV3 : Colonnes de la matrice LED 3x3 (sorties D6 ... D8) JP1 : Connexion des lignes avec les GPIOs D3 ... D5 Logiciel Bibliothèque MCCABLib Contrôle des composants matériels (interrupteurs, boutons, DEL, matrice de DEL 3x3, buzzer) sur la carte de formation MCCAB. Température de fonctionnement Jusqu'à +40 °C Dimensions 100 x 100 x 20 mm Spécifications (Arduino Nano) Microcontrôleur ATmega328P Architecture AVR Tension de fonctionnement 5 V Mémoire flash 32 Ko, dont 2 Ko utilisés par le chargeur de démarrage SRAM 2 KB Vitesse d'horloge 16 MHz Connecteurs d'entrée analogique 8 EEPROM 1 KB Courant continu par connecteur d'E/S 40 mA sur un connecteur d'E/S, maximum total de 200 mA sur l'ensemble des connecteurs Tension d'entrée 7-12 V Connecteurs E/S numériques 22 (dont 6 PWM) Sortie PWMt 6 Consommation électrique 19 mA Dimensions 18 x 45 mm Poids 7 g Inclus Elektor Arduino Nano MCCAB Training Board Arduino Nano Livre : Microcontrollers Hands-on Course for Arduino Starters

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Jan Didden a créé Linear Audio en 2010 et a publié 14 volumes entre 2010 et 2017. Chaque volume de 200 pages contient en moyenne 10 articles rédigés par des auteurs experts dans le domaine de l'audio, de l'acoustique et de l'instrumentation. Que vous vous intéressiez aux amplificateurs à tubes, aux équipements à semi-conducteurs, à la conception de haut-parleurs, à la distorsion des condensateurs et des résistances ou à la mesure de la distorsion, vous y trouverez certainement des conseils utiles et des réflexions intéressantes. Du niveau débutant au niveau avancé, pour le professionnel de l'audio ou l'amateur sérieux, cette collection d'experts vous permettra d'améliorer votre compréhension et vous offrira de nouvelles perspectives sur des problématiques courantes. Le contenu bonus inclus dans cette collection est constitué d'une série YouTube en 5 parties sur le feedback négatif appliqué à l'audio par l'auteur renommé Jan Didden, en plus de neuf articles et présentations audio de référence. Si vous vous intéressez sérieusement à l'audio, à l'acoustique et à l'instrumentation, ne manquez pas cette collection ! Le contenu publié est indexé et entièrement consultable et constituera une ressource presque illimitée pour l'avenir. Vous pouvez en savoir plus sur les auteurs deLinear Audio et la table des matières de chaque volume à linearaudio.net.

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Quelles que soient les méthodes ou même les moyens financiers dont vous disposez pour faire fonctionner vos circuits, l'alimentation électrique doit figurer en bonne place, voire numéro un, dans vos considérations. Le bloc de conception simplement appelé « alimentation » est extrêmement sous-estimé, tant dans la création que dans la réparation de produits électroniques. Pourtant, le « PSU » présente une énorme diversité et se présente sous des formes très différentes comme AC/DC, générateur, batterie (rechargeable ou non), panneau photovoltaïque, de table, linéaire ou à découpage, pour n'en citer que quelques-uns. Les plages de sortie sont également stupéfiantes, du nano-ampère au kiloampère et il en va de même pour les tensions. Ce spécial couvre les caractéristiques et les aspects de conception des alimentations. Contenu Les bases Gestion de la batterie Ce qu'il faut savoir lors de l'utilisation de piles (au lithium). Alimentation à tension fixe utilisant des régulateurs linéaires Le meilleur résultat juste après les piles. Récupération d'énergie lumineuse Un petit panneau solaire est utilisé dans un projet de récupération d'énergie pour gérer et charger quatre cellules AAA. Conception de l'adaptateur alimenté par secteur Circuits de base et conseils pour transformateurs, redressement, filtrage et stabilisation. Démarrage progressif LM317 L'impulsion de courant d'appel élevée doit être évitée. Redresseurs contrôlables Quelques suggestions pour maintenir la perte de puissance dans le régulateur linéaire aussi faible que possible. Composants Feuille de travail : Les régulateurs de tension LM117 / LM217 / LM317 Supercapsules Basse tension mais beaucoup de courant… ou pas ? Commentaires Kit d'alimentation de table JOY-iT RD6006 Charge électronique CC programmable Siglent SDL1020X Projets Centrale électrique du balcon Balcon solaire DIY = retour sur investissement rapide ! Kit de compresseur LiPo DIY De l'artisanat au marché de masse Thyristor MOSFET à double anode Plus rapide et moins coûteux que l'ancien SCR Presse-agrumes à batterie Ne jetez pas, pressez ! Alimentation haute tension avec traceur de courbe Générez des tensions jusqu'à 400 V et tracez des courbes caractéristiques pour les vannes et les transistors Alimentation haute tension pour RIAA Pour préamplis à lampes RIAA et autres applications. MicroApprovisionnement Une alimentation de laboratoire pour les appareils connectés Alimentation fantôme utilisant des condensateurs commutés Tripleur de tension utilisant trois circuits intégrés L'alimentation à découpage SMPS800RE pour l'Elektor Fortissimo-100 Fiable, léger et abordable Démarrage progressif pour bloc d'alimentation Soyez gentil avec votre alimentation – et sa charge UniLab 2 Alimentation de laboratoire compacte à découpage 0-30 V, 3 A Conseils Démarrage progressif pour les régulateurs à découpage abaisseurs Limite de courant de perte faible Batterie externe Surprise Un terrain virtuel Mainteneur de batterie Déchargeur de batterie Connexion des régulateurs de tension en parallèle

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A Fast-Lane Ride From Concept to Project The core of the book explains the use of the Raspberry Pi Zero 2 W running the Python programming language, always in simple terms and backed by many tested and working example projects. On part of the reader, familiarity with the Python programming language and some experience with one of the Raspberry Pi computers will prove helpful. Although previous electronics experience is not required, some knowledge of basic electronics is beneficial, especially when venturing out to modify the projects for your own applications. Over 30 tested and working hardware-based projects are given in the book, covering the use of Wi-Fi, communication with smartphones and with a Raspberry Pi Pico W computer. Additionally, there are Bluetooth projects including elementary communication with smartphones and with the popular Arduino Uno. Both Wi-Fi and Bluetooth are key features of the Raspberry Pi Zero 2 W. Some of the topics covered in the book are: Raspberry Pi OS installation on an SD card Python program creation and execution on the Raspberry Pi Zero 2 W Software-only examples of Python running on the Raspberry Pi Zero 2 W Hardware-based projects including LCD and Sense HAT interfacing UDP and TCP Wi-Fi based projects for smartphone communication UDP-based project for Raspberry Pi Pico W communication Flask-based webserver project Cloud storage of captured temperature, humidity, and pressure data TFT projects Node-RED projects Interfacing to Alexa MQTT projects Bluetooth-based projects for smartphone and Arduino Uno communications

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This book discusses the basic components of any alarm system. All alarm systems have two basic functions. First, they monitor their environment looking for a change such as a door or window opening or someone moving about in the room. Second, they alert the legal owner or user to this change. The system described in this book uses a scanning type software to detect intruders. It behaves like a guard dog, pacing up and down the fence line on the lookout for either an intruder or a familiar person. If you have an alarm key, you can disarm the system and enter. With the scanning method, the software is easy to write and explain. It can scan eight alarm zones plus two special fire zones in about one second. You don’t have to be an electrical engineer to install an alarm system, just a decent carpenter, painter, and plasterer! Because this alarm system runs on 12 volts, you don’t have to be a licensed electrician either to install it. The alarm system presented here uses Python software on the Raspberry Pi combined with some elementary electronic circuits. The code described in the book, as well as CAD files and a bill of materials for the alarm panel, are available for free downloading. The book provides the reader with examples of typical configurations coming straight from the author‘s experience. After reviewing the hardware components typically used in common alarm systems, the author shows how to plan one yourself. To implement a modular alarm, no matter if it is for a single house or for a business or restaurant, the book shows how to skillfully combine a Raspberry Pi with small auxiliary electronic circuits. These are not installation instructions but food for thought that will enable readers to find a solution to their needs.

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Projects with Arduino Uno & Raspberry Pi with Examples for the MCP2515 CAN Bus Interface Module This book details the use of the Arduino Uno and the Raspberry Pi 4 in practical CAN bus based projects. Using either the Arduino Uno or the Raspberry Pi with off-the-shelf CAN bus interface modules considerably ease developing, debugging, and testing CAN bus based projects. This book is written for students, practicing engineers, enthusiasts, and for everyone else wanting to learn more about the CAN bus and its applications. The book assumes that the reader has some knowledge of basic electronics. Knowledge of the C and Python programming languages and programming the Arduino Uno using its IDE and Raspberry Pi will be useful, especially if the reader intends to develop microcontroller-based projects using the CAN bus. The book should be a useful source of reference material for anyone interested in finding answers to questions such as: What bus systems are available for the automotive industry? What are the principles of the CAN bus? How can I create a physical CAN bus? What types of frames (or data packets) are available in a CAN bus system? How can errors be detected in a CAN bus system and how dependable is a CAN bus system? What types of CAN bus controllers exist? How do I use the MCP2515 CAN bus controller? How do I create 2-node Arduino Uno-based CAN bus projects? How do I create 3-node Arduino Uno-based CAN bus projects? How do I set the acceptance masks and acceptance filters? How do I analyze data on the CAN bus? How do I create 2-node Raspberry Pi-based CAN bus projects? How do I create 3-node Raspberry Pi-based CAN bus projects?

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This book details the use of the Arduino Uno and the Raspberry Pi 4 in practical CAN bus based projects. Using either the Arduino Uno or the Raspberry Pi with off-the-shelf CAN bus interface modules considerably ease developing, debugging, and testing CAN bus based projects. This book is written for students, practicing engineers, enthusiasts, and for everyone else wanting to learn more about the CAN bus and its applications. The book assumes that the reader has some knowledge of basic electronics. Knowledge of the C and Python programming languages and programming the Arduino Uno using its IDE and Raspberry Pi will be useful, especially if the reader intends to develop microcontroller-based projects using the CAN bus. The book should be a useful source of reference material for anyone interested in finding answers to questions such as: What bus systems are available for the automotive industry? What are the principles of the CAN bus? How can I create a physical CAN bus? What types of frames (or data packets) are available in a CAN bus system? How can errors be detected in a CAN bus system and how dependable is a CAN bus system? What types of CAN bus controllers exist? How do I use the MCP2515 CAN bus controller? How do I create 2-node Arduino Uno-based CAN bus projects? How do I create 3-node Arduino Uno-based CAN bus projects? How do I set the acceptance masks and acceptance filters? How do I analyze data on the CAN bus? How do I create 2-node Raspberry Pi-based CAN bus projects? How do I create 3-node Raspberry Pi-based CAN bus projects?

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Learn programming for Alexa devices, extend it to smart home devices and control the Raspberry Pi The book is split into two parts: the first part covers creating Alexa skills and the second part, designing Internet of Things and Smart Home devices using a Raspberry Pi. The first chapters describe the process of Alexa communication, opening an Amazon account and creating a skill for free. The operation of an Alexa skill and terminology such as utterances, intents, slots, and conversations are explained. Debugging your code, saving user data between sessions, S3 data storage and Dynamo DB database are discussed. In-skill purchasing, enabling users to buy items for your skill as well as certification and publication is outlined. Creating skills using AWS Lambda and ASK CLI is covered, along with the Visual Studio code editor and local debugging. Also covered is the process of designing skills for visual displays and interactive touch designs using Alexa Presentation Language. The second half of the book starts by creating a Raspberry Pi IoT 'thing' to control a robot from your Alexa device. This covers security issues and methods of sending and receiving MQTT messages between an Alexa device and the Raspberry Pi. Creating a smart home device is described including forming a security profile, linking with Amazon, and writing a Lambda function that gets triggered by an Alexa skill. Device discovery and on/off control is demonstrated. Next, readers discover how to control a smart home Raspberry Pi display from an Alexa skill using Simple Queue Service (SQS) messaging to switch the display on and off or change the color. A node-RED design is discussed from the basic user interface right up to configuring MQTT nodes. MQTT messages sent from a user are displayed on a Raspberry Pi. A chapter discusses sending a proactive notification such as a weather alert from a Raspberry Pi to an Alexa device. The book concludes by explaining how to create Raspberry Pi as a stand-alone Alexa device.

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Affordable solutions with the ESP8266 and 3D printing If you are looking for a small yet powerful IoT device, you are likely to come across the ESP8266 and compatible products on the market today. One of these, the Wemos/Lolin D1 Mini Pro board strikes a remarkable balance between cost and performance. A small and very affordable prototype board, the D1 Mini Pro stands out with its WiFi functionality and a 16-Mbytes flash memory for easy creation of a flash file system. In addition, there are sufficient input and output pins (only one analog input though) to support PWM, I²C, and One-Wire systems to mention but a few. The book describes the operation, modding, construction, and programming of home appliances including a colorful smart home accessory, a refrigerator/greenhouse controller, an AC powerline monitor, a door lock monitor, and an IKEA Trådfri controller. As a benefit, all firmware developed for these DIY, "IoT-ized" devices can be updated over-the-air (OTA). For most of the designs in the book, a small printed circuit board (PCB) and an enclosure are presented so readers can have a finished and attractive-looking product. Readers having – or with access to! – a 3D printer can "print" the suggested enclosures at home or in a shop. Some of the constructions benefit from a Raspberry Pi configured as a gateway or cms server. This is also described in detail with all the necessary configuring. You don’t need to be an expert but the prerequisites to successful replication of the projects include basic skills with PC software including the ability to surf the Internet. In terms of hardware, you should be comfortable with soldering and generally assembling the PCBs presented in the book. All custom software written for the IoT devices, the PCB layouts, and 3D print files described in the book are available for free downloading.

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Program, build, and master 60+ projects with the Wireless RP2040 The Raspberry Pi Pico and Pico W are based on the fast, efficient, and low-cost dual-core ARM Cortex M0+ RP2040 microcontroller chip running at up to 133 MHz and sporting 264 KB of SRAM and 2 MB of Flash memory. Besides spacious memory, the Pico and Pico W offer many GPIO pins, and popular peripheral interface modules like ADC, SPI, I²C, UART, PWM, timing modules, a hardware debug interface, and an internal temperature sensor. The Raspberry Pi Pico W additionally includes an on-board Infineon CYW43439 Bluetooth and Wi-Fi chipset. At the time of writing this book, the Bluetooth firmware was not yet available. Wi-Fi is however fully supported at 2.4 GHz using the 802.11b/g/n protocols. This book is an introduction to using the Raspberry Pi Pico W in conjunction with the MicroPython programming language. The Thonny development environment (IDE) is used in all of the 60+ working and tested projects covering the following topics: Installing the MicroPython on Raspberry Pi Pico using a Raspberry Pi or a PC Timer interrupts and external interrupts Analogue-to-digital converter (ADC) projects Using the internal temperature sensor and external sensor chips Using the internal temperature sensor and external temperature sensor chips Datalogging projects PWM, UART, I²C, and SPI projects Using Bluetooth, WiFi, and apps to communicate with smartphones Digital-to-analogue converter (DAC) projects All projects are tried & tested. They can be implemented on both the Raspberry Pi Pico and Raspberry Pi Pico W, although the Wi-Fi-based subjects will run on the Pico W only. Basic programming and electronics experience are required to follow the projects. Brief descriptions, block diagrams, detailed circuit diagrams, and full MicroPython program listings are given for all projects.

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Program, build, and master 60+ projects with the Wireless RP2040 The Raspberry Pi Pico and Pico W are based on the fast, efficient, and low-cost dual-core ARM Cortex M0+ RP2040 microcontroller chip running at up to 133 MHz and sporting 264 KB of SRAM and 2 MB of Flash memory. Besides spacious memory, the Pico and Pico W offer many GPIO pins, and popular peripheral interface modules like ADC, SPI, I²C, UART, PWM, timing modules, a hardware debug interface, and an internal temperature sensor. The Raspberry Pi Pico W additionally includes an on-board Infineon CYW43439 Bluetooth and Wi-Fi chipset. At the time of writing this book, the Bluetooth firmware was not yet available. Wi-Fi is however fully supported at 2.4 GHz using the 802.11b/g/n protocols. This book is an introduction to using the Raspberry Pi Pico W in conjunction with the MicroPython programming language. The Thonny development environment (IDE) is used in all of the 60+ working and tested projects covering the following topics: Installing the MicroPython on Raspberry Pi Pico using a Raspberry Pi or a PC Timer interrupts and external interrupts Analogue-to-digital converter (ADC) projects Using the internal temperature sensor and external sensor chips Using the internal temperature sensor and external temperature sensor chips Datalogging projects PWM, UART, I²C, and SPI projects Using Bluetooth, WiFi, and apps to communicate with smartphones Digital-to-analogue converter (DAC) projects All projects are tried & tested. They can be implemented on both the Raspberry Pi Pico and Raspberry Pi Pico W, although the Wi-Fi-based subjects will run on the Pico W only. Basic programming and electronics experience are required to follow the projects. Brief descriptions, block diagrams, detailed circuit diagrams, and full MicroPython program listings are given for all projects.

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This book contains more than 400 simple electronic circuits which are developed and tested in practice by the authors. The technical solutions presented in the book are intended to stimulate the creative imagination of readers and broaden their area of thought. This should allow readers to look beyond the horizons of possibilities and use ordinary electronic items in a new way. This book includes new and original radio electronic multipurpose circuits. The chapters of the book are devoted to power electronics and measuring equipment and contain numerous original circuits of generators, amplifiers, filters, electronic switches based on thyristors and CMOS switch elements. Wired and wireless systems as well as security and safety systems are presented. Due to the high relevance and increased interest of readers in little-known or not readily available information, the different chapters of this book describe the use of electronic devices in industrial electronics and for research, as well as new instruments and equipment for medical use, gas-discharge and Kirlian photography. A number of technical devices presented in this book are related to research of the mysteries of the earth, nature and human beings by using radio electronic devices. This book will be useful for both radio amateurs and professionals.

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Plot, Cut, Drill, Mill and Laser with the Z99 This book covers the construction, hardware, software, and operation of the Z99 – CNC machine. This is a multifunctional 4-axis machine for home construction. The capabilities of the Z99 machine include: large-format schematic plotting PCB plotting with etch-resist pens schematic plotting with conductive-ink pens letter cutting out of vinyl paper cutting PCB/substrate drilling PCB/substrate milling text milling laser engraving laser cutting of solder paste masks By making the support software available as freeware, readers of the book are challenged and encouraged to develop new applications for the Z99. The machine would not be of much use if the user has no option to create suitable files for the designs in mind. A large part of this book is dedicated to creating source files in a variety of freeware software packages, including Inkscape, DesignSpark PCB, KiCad, and FlatCAM. The book is also useful for readers keen to comprehend and then master the basic structure of HPGL, Gerber, Drill, and G-code files, as well as to have a go at deciphering them using software.

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