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Microcontrollers have become an indispensable part of modern electronics. They make things possible that vastly exceed what could be done previously. Innumerable applications show that almost nothing is impossible. There’s thus every reason to learn more about them, but that raises the question of where to find a good introduction to this fascinating technology. The answer is easy: this Microcontroller Basics book, combined with the 89S8252 Flash Board project published by Elektor Electronics. However, this book offers more than just a basic introduction. It clearly explains the technology using various microcontroller circuits and programs written in several different programming languages. Three microcontrollers from the 8051 family are used in the sample applications, ranging from the simple 89C2051 to the AN2131, which is designed to support USB applications. The programming tools include assemblers, Basic-52 and BASCOM-51, and several C compilers. Every reader can thus find the programming environment most suitable to his or her needs. In the course of the book, the reader gradually develops increased competence in converting his or her ideas into microcontroller circuitry. All of the sample programs can be downloaded from the Elektor Electronics website or the author’s website. That has the added advantage that the latest versions are always available.

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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.

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This book covers a series of exciting and fun projects for the Arduino, such as a silent alarm, people sensor, light sensor, motor control, internet and wireless control (using a radio link). Contrary to many free projects on the internet all projects in this book have been extensively tested and are guaranteed to work! You can use it as a projects book and build more than 45 projects for your own use. The clear explanations, schematics, and pictures of each project make this a fun activity. The pictures are taken of a working project, so you know for sure that they are correct. You can combine the projects in this book to make your own projects. To facilitate this, clear explanations are provided on how the project works and why it has been designed the way it has That way you will learn a lot about the project and the parts used, knowledge that you can use in your own projects. Apart from that, the book can be used as a reference guide. Using the index, you can easily locate projects that serve as examples for the C++ commands and Arduino functionality. Even after you’ve built all the projects in this book, it will still be a valuable reference guide to keep next to your PC.

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La série OWON ADS900A est un oscilloscope numérique compact 12 bits offrant jusqu'à 2 GSa/s, une mémoire de 100 Mpts et une bande passante de 125/250 MHz. Avec son écran tactile multipoint de 7 pouces, sa FFT, son décodage de protocole et son analyseur logique intégré, il permet une analyse précise des signaux pour les applications en laboratoire, en atelier et sur le terrain. Spécifications ADS914A ADS924A Bandwidth (-3 dB) 125 MHz 250 MHz Channels 4 Max. sample rate 2 GSa/s (single-channel) 1 GSa/s (dual-channel) 500 MSa/s (full-channel) DC Gain Accuracy 3% (≤1 mV) 2% (≥2 mV) Max memory depth 100M Vertical resolution 12 bits Relay time accuracy ±25 ppm (typical) Input Impedance 1 MΩ±2%, parallel with20 pF±5 pF Probe Attenuation Coefficient 1.00μX-1M.00X,step by 1-2-5, support custom Trigger type Edge, Video, Pulse, Slope, Runt, Windows, Timeout, Nth, Logic, RS232/UART, I²C, SPI CAN, LIN Bus decoding RS232/UART, I²C, SPI, CAN, LIN Auto measurement Period, Frequency, +Width, -Width, Rise Time, Fall Time, Scr Duty, +Duty,-Duty, Vavg, Vpp, VRMS, Overshoot, Vmax, Vmin, Vtop, CycRms, Vbase, Vamp, Preshoot, Std Dev, +Pulse Cnt, -Pulse Cnt, Rise Cnt, Fall Cnt, Area, Cyc Area, Delay(A↑-B↑), Delay(A↑-B↓), Delay(A↓-B↑), Delay(A↓-B↓), Phase(A↑-B↑) Phase(A↑-B↓), Phase(A↓-B↑), Phase(A↓-B↓), FRR(A↑-B↑), FRF(A↑-B↓) FFR(A↓-B↑), FFF(A↓-B↓), LRR(A↑-B↑), LRF(A↑-B↓), LFR(A↓-B↑), LFF(A↓-B↓) Waveform Math +, -, *, /, &&, ||, ^, ！, Intg, Diff, Sqrt, Function operation (Lg / Ln / Exp / Abs / Sine / Cosine / Tan), FFT, FFT rms, User Defined, digital filter (low pass, high pass, band pass, band reject) Frequency counter 6-digit frequency counter Maximum frequency: maximum analog bandwidth of oscilloscope Voltmeter Support DC, AC+DCrms, ACrms, Resolution: 4 digits (ACV/DCV) Logical Analyzer Specifications Number of channels 16 input channels (D0-D15) (D0 to D7, D8 to D15) Max. input voltage ±40V peak CAT I, transient overvoltage 800Vpk Input Impedance 100kΩ, 8 pF Vertical resolution 1 bit Other Communication Interface HDMI, USB device, USB Host, Trig Out (P/F), LAN Display 7 inch (1024x600), capacitive multi-touch screen Power supply interface USB-C Dimensions 260 x 160 x 78 mm Weight 1.5 kg Inclus 1x OWON ADS914A Oscilloscope 1x Adaptateur secteur 1x Cordon d'alimentation 1x Câble USB 1x Sonde 1x Quick Guide Téléchargements Manual Quick Guide PC Software

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The Controller Area Network (CAN) was originally developed to be used as a vehicle data bus system in passenger cars. Today, CAN controllers are available from over 20 manufacturers, and CAN is finding applications in other fields, such as medical, aerospace, process control, automation, and so on. This book is written for students, for practising engineers, for hobbyists, and for everyone else who may be interested to learn more about the CAN bus and its applications. The aim of this book is to teach you the basic principles of CAN networks and in addition the development of microcontroller based projects using the CAN bus. In summary, this book enables the reader to: Learn the theory of the CAN bus used in automotive industry Learn the principles, operation, and programming of microcontrollers Design complete microcontroller based projects using the C language Develop complete real CAN bus projects using microcontrollers Learn the principles of OBD systems used to debug vehicle electronics You will learn how to design microcontroller based CAN bus nodes, build a CAN bus, develop high-level programs, and then exchange data in real-time over the bus. You will also learn how to build microcontroller hardware and interface it to LEDs, LCDs, and A/D converters. The book assumes that the reader has some knowledge on basic electronics. Knowledge of the C programming language will be useful in later chapters of the book, and familiarity with at least one member of the PIC series of microcontrollers will be an advantage, especially if the reader intends to develop microcontroller based projects using the CAN bus.

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Ce picoampèremètre source très sensible est conçu pour mesurer et enregistrer de très faibles courants jusqu'à la gamme des pA, ce qui en fait un instrument idéal pour les applications scientifiques et de recherche, notamment en physique, en science des matériaux et en microscopie électronique. Doté de toutes les fonctionnalités à un prix abordable, le SPA100 allie sensibilité, précision et stabilité pour permettre aux utilisateurs de mesurer de faibles courants avec une grande précision et d'obtenir facilement des tensions de polarisation pour l'expérimentation. Le SPA100 peut également servir de mesureur de résistance ultra-haute, mesurant avec précision jusqu'à la gamme des téraohms. Le SPA100 se connecte à un PC via USB et utilise le logiciel complémentaire SPA, qui permet aux utilisateurs de mesurer, de tracer des graphiques et de capturer des lectures avec des horodatages et des informations sur la stabilité de la mesure. Spécifications Entrée : ±2 mA à ±200 pA sur 8 plages Précision et résolution (2 Hz) : Plage ±2 mA : ±0,1%, résolution <20 nA Plage ±200 uA : ±0,1%, résolution <2 nA Plage ±20 uA : ±0,2%, résolution <200 pA Plage ±2 uA : ±0,2%, résolution <20 pA Plage ±200 nA : ±0,5%, résolution <2 pA Plage ±20 nA : ±0,5%, résolution <200 fA Plage ±2nA : ±1,0%, résolution <20 fA Plage de ±200 pA : ±1,5%, résolution <2 fA Taux d'échantillonnage : 2 Hz (18 bits) ou 10 Hz (16 bits) Filtre réglable : 1 échantillon à 64 échantillons Tension de sortie : -40 V à +40 V (par incréments de 1 V), résistance de sortie 2,7 Kohms Mesure de la résistance : ~1 Kohms à 40 Tohms (par exemple, source de 40 V, mesure de 1 pA) Précision : > ±0,5%, 1 Mohm à 1 Tohm Alimenté via USB 2.0 (l'instrument utilise jusqu'à 0,3 A lorsqu'il est utilisé) Inclus 1x Picoampèremètre à source SPA100 1x Câble USB Téléchargements Manual Software

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Le HDS242 est un testeur multifonction portable 2-en-1, qui peut être utilisé comme oscilloscope à 2 canaux et multimètre. Il dispose d'un écran couleur haute résolution de 3,5 pouces à contraste élevé, adapté à la maintenance des installations extérieures, aux mesures rapides sur site, à la maintenance automobile, à la détection de puissance, etc. Caractéristiques Oscilloscope + Multimètre Écran LCD couleur haute résolution de 3,5 pouces à contraste élevé - adapté à une utilisation en extérieur Batterie au lithium 18650 - peut fonctionner en continu jusqu'à 6 heures Interface USB Type-C - prise en charge de la connexion à une banque d'alimentation et à un PC Fonction d'auto-étalonnage SCPI pris en charge - facilite le développement secondaire Spécifications Oscilloscope Bande passante 40 MHz Canaux Oscilloscope à 2 canaux Taux d'échantillonnage 250 MSa/s Modèle d'acquisition Normal, détection de crête Longueur d'enregistrement 8K Affichage Écran LCD de 3,5 pouces Taux de rafraîchissement des formes d'ondes 10 000 formes d'ondes/s Couplage d'entrée DC, AC et masse Impédance d'entrée 1 MΩ ± 2 %, en parallèle avec 16 pF ± 10 pF Facteurs d'atténuation de la sonde 1X, 10X, 100X, 1000X, 10000X Tension d'entrée max. 400 V (DC+AC, PK-PK, impédance d'entrée de 1 MΩ) (atténuation de sonde 10:1) Limite de bande passante (typique) 20 MHz Échelle horizontale 5ns/div - 1000s/div, pas de 1 - 2 - 52ns/div - 1000s/div, pas de 1 - 2 - 55ns/div - 1000s/div, pas de 1 - 2 - 52ns/div - 1000s/div, pas de 1 - 2 - 5 Sensibilité Verticale 10mV/div - 10V/div Résolution Verticale 8 bits Type de Déclenchement Bord Mode de Déclenchement Automatique, Normal, Unique Mesure Automatique Fréquence, Période, Amplitude, Max, Min, Moyenne, PK-PK Mesure de Curseur ΔV, ΔT, ΔT et ΔV entre les curseurs Multimètre Résolution Max. 20 000 points Mode de Test Tension, Courant, Résistance, Capacité, Diode et Continuité Impédance d'Entrée 10 MΩ Tension d'Entrée Max. CA : 750 V | CC : 1000 V Courant d'Entrée Max. CC : 10 A | CA : 10 A Diode 0-2 V Autre Connectivité USB Type-C Dimensions 198 x 96 x 38 mm (7,68 x 3,74 x 1,5') Poids 600 g (sans piles) Inclus 1x Oscilloscope OWON HDS242 1x Sac Souple 1x Sonde 1x Cordon d'Alimentation 1x Réglage de Sonde 1x Câble USB 1x Adaptateur Secteur 1x Paire de Fils de Sonde de Multimètre (rouge et noir) 1x Paire de Fils de Sonde d'Oscilloscope (BNC vers Pince Alligator) 1x Manuel d'Utilisation (Anglais) Téléchargements User Manual for HDS200 Series SCPI Protocol for HDS200 Series Quick Guide for HDS200 Series PC Software for OWON HDS200 Series

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Whether you are an electronics enthusiast or engineering professional, this book provides the reader with an introduction to the use of the CadSoft’s EAGLE PCB design software package. EAGLE is a user-friendly, powerful and affordable software package for the efficient design of printed circuit boards. It offers the same power and functionality to all users, at a smaller cost than its competitors. A free version of EAGLE is available to enthusiasts for their own use. EAGLE can be used on the main computing platforms including: Microsoft Windows (XP, Vista or Windows 7); Linux (based on kernel 2.6 or above) and Apple Mac OS X (Version 10.6 or higher). Any hardware that supports these software platforms will run the EAGLE application. The book is intended for anyone who wants an introduction to the capabilities of EAGLE. The reader may be a novice at PCB design or a professional wanting to learn about EAGLE, with the intention of migrating from another CAD package. This book will quickly allow you to: obtain an overview of the main modules of EAGLE: the schematic editor; layout editor and autorouter in one single interface; learn to use some of the basic commands in the schematic and layout editor modules of EAGLE; apply your knowledge of EAGLE commands to a small project; learn more about some of the advanced concepts of EAGLE and its capabilities; understand how EAGLE relates to the stages of PCB manufacture; create a complete project, from design through to PCB fabrication. The project discussed in the book is a popular, proven design from the engineering team at Elektor. After reading this book while practicing some of the examples, and completing the projects, the reader should feel confident about taking on more challenging endeavors.

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Le compteur LCR portable UT622E présente des fonctions puissantes, une haute précision, une vitesse rapide et une longue durée de veille. Avec un écran LCD TFT clair et intuitif de 2,8 pouces, une batterie rechargeable de grande capacité et une fréquence de test de 100 kHz, l'appareil de mesure peut être utilisé pour des mesures précises et pratiques de longue date en toute occasion. Il convient à la mesure et au dépistage de l'inductance, de la capacité et de la résistance dans les laboratoires, les lignes de production, les points de maintenance, etc. Caractéristiques Max. fréquence d'essai : 100 kHz Précision : 0,1 % Nombre d'affichages : 99999 Max. taux de test : 20 fois/s DCR : Oui Connectivité : Mini-USB Écran : ACL TFT 2,8 pouces Spécifications Fréquence de test 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz Niveau d'essai 0,1 Vmrs, 0,3 Vrms, 1 Vrms Impédance de sortie 100 Ω Paramètres de mesure Primaire : L/C/R/Z/DCR Secondaire : D/Q/Θ/ESR Test de vitesse DSR Rapide (20 fois/s), moyen (5 fois/s) ou lent (2 fois/s) Gamme Auto/Maintien Plage de tolérance 1%~20% Mode équivalent Série/Parallèle Effacement de la connexion Circuit ouvert/court-circuit Fusible des ports de test 0,1 A/250 V Interface de Communication Mini-USB Lecture MAX des paramètres primaires 99999 Résolution MINI 0,0001 Précision maximale 0,10% L 0,00 µH~99,999 H C 0,00 pF~99,999 mF Z/R 0,0000 ~ 9,9999 MΩ RSE 0,0000 Ω ~ 999,99 Ω D 0,0000 ~ 9,9999 Q 0,0000 ~ 99999 Θ -179,9°~179,9° RCD 0,01 mΩ ~ 20 000 MΩ Source de courant Batterie lithium-polymère 3,7 V/1 800 mAh Afficher Écran LCD TFT 2,8" (320 x 240) Dimensions 93x192x44mm Poids 420g Inclus Compteur LCR UT622E Carte de court-circuit Fils de test Kelvin à quatre bornes Cable USB Manuel Téléchargements Fiche de données Manuel Logiciel

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Caractéristiques Résolution de 4 1/2 bits (20000 cycles) Enregistreur de données Multimètre Thermomètre Possibilité de test True RMS Transmission sans fil BLE 4.0, plus stable, consommation d’énergie réduite. Fonction d’enregistrement hors ligne intégrée Le mode graphique et diagramme permet d'analyser la tendance des données. Fonction lampe de poche pour l’obscurité Détection de tension sans contact NCV Largement supporté sur Android, iOS, Windows Inclus OWON OW18E multimètre Guide pratique Câble de multimètre Thermocouple de type K Bolt Driver Téléchargement de l’application La fonction Bluetooth de ce multimètre est compatible avec la version 1.5.8.0 ou plus récente de l’application Android. Utilisez le code QR dans l’encadré ou visitez le site suivant http://files.owon.com.cn/bluetooth.

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The short-wave technique has a very particular appeal: It can easily bridge long distances. By reflecting short-wave signals off the conductive layers of the ionosphere, they can be received in places beyond the horizon and therefore can reach anywhere on earth. Although technology is striving for ever higher frequencies, and radio is usually listened to on FM, DAB+, satellite or the Internet, modern means of transmission require extensive infrastructure and are extremely vulnerable. In the event of a global power outage, there is nothing more important than the short-wave. Amateur radio is not only a hobby, it’s also an emergency radio system! Elektor’s SDR-Shield is a versatile shortwave receiver up to 30 MHz. Using an Arduino and the appropriate software, radio stations, morse signals, SSB stations, and digital signals can be received. In this book, successful author and enthusiastic radio amateur, Burkhard Kainka describes the modern practice of software defined radio using the Elektor SDR Shield. He not only imparts a theoretical background but also explains numerous open source software tools.

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The PC has long-time 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 familiarising yourself with Visual Basic, its development environment and the toolset it offers, items such as serial communications, printer ports, bit-banging, 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 projects 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 internet-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.

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