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The author, Johan Basse Bergqvist, is an engineer, a musician, and an audiophile with a knack for building projects that produce the desired results. The combination of these skills leads to a uniquely valuable perspective on audio design that is routinely reflected in the book and passed on to the readers. Several design projects are provided, 40 in total. The designs are explained, and the unique features or methods he uses are described in further detail. Each design includes detailed schematics and a complete parts list. Many of the projects also include layout documentation in the form of CAD photos of the PCB layouts. The range of projects is very diverse and includes something that will appeal to everyone. Stereo amplifiers, guitar and bass amplifiers, preamplifiers for phono, and microphones are all covered. Several variants for each type are included, and the power amplifier designs range from a few watts to several hundred watts, which meet almost any power level you might tackle.

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The Peak Atlas ESR70 gold is an enhanced version of the previous Peak Atlas ESR70 Plus. It does everything that the ESR70 Plus did but better. It now measures capacitance up to 10x faster, and over a wider range, thanks to new test algorithms. The capacitance measurement is also much less influenced by parallel resistances or leakage current thanks to our new Triple-Slope measurement system. Using the supplied gold plated probes (removable), the Atlas ESR70 gold can measure ESR down to a resolution of 0.01 ohms, up to 40 ohms. It can even measure ESR for capacitors that are in-circuit. Probes are removable, allowing 2 mm compatible probes to be fitted. Audible alerts are produced for various ESR levels allowing you to perform many tests in succession without having to look at the display. The ESR70 automatically takes capacitive reactance into account, so even low value capacitors (down to 0.3 uF) can have the ESR measured accurately. Kenmerken Uses a single AAA Alkaline cell (included). Alphanumeric LCD with backlight. Automatic analysis-start when you apply the probes. Automatic capacitor discharge using controlled discharge function. ESR (and low DC resistance) measurement (even in-circuit). Capacitive reactance automatically taken into account to ensure accurate ESR. Capacitance measurement (if testing out-of-circuit). Audible alerts for various ESR levels. Extended ESR measurement range up to 40 Ohms. Optional probe alternatives easily fitted. New gold Features Improved LCD with better backlight. 10x faster capacitance measurement for large capacitors. Enhanced user options system. New triple-slope measurement system to vastly reduce the influence of parallel resistance and/or leakage current on capacitance measurements. Much wider capacitance measurement range now 0.3 uF to 90,000 uF (was 1uF to 22,000uF). Specificaties Analyzer type ESR and Capacitance Component types Capacitors (>0.3 uF) ESR range 0.00 Ohms to 40.0 Ohms ESR resolution From 0.01 Ohms In-circuit use ESR only Capacitance range 0.3 uF to 90000 uF Battery type 1.5 V Alkaline AAA Cell (supplied). Life typically 1500 ops Display type Alphanumeric LCD (with backlight) Inbegrepen Peak Atlas ESR70 gold Extra-long and extra-flexible test cables (450 mm of Silicone covered cable) 2 mm gold plated plugs and sockets with removeable gold plated crocodile clips Comprehensive illustrated user guide AAA Alkaline cell Downloads Datasheet (EN) User Guide (EN)

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Das ESP8266-Praxisbuch (E-book)

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Deze bundel bevat alles wat u nodig hebt om direct aan de slag te gaan met het XIAO ESP32-C3 development board. Leer de basisprincipes van de ESP32-C3 en bouw praktische projecten met Wi-Fi, Bluetooth, sensoren, displays, PWM, Deep Sleep en nog veel meer. Boek: Build Smart Projects with the XIAO ESP32-C3 Board Het XIAO ESP32-C3 board combineert de ultracompacte vormfactor van de XIAO-serie met de uitgebreide mogelijkheden van de ESP32-C3-chip, inclusief geïntegreerde Wi-Fi en Bluetooth 5.0. Dit boek is een uitgebreide, praktische gids waarmee u het maximale uit dit krachtige en toch betaalbare development board kunt halen. De auteur neemt de lezer mee van de basisprincipes tot geavanceerde projecten. Na het laten knipperen en dimmen van leds komen ADC en PWM aan bod voor nauwkeurige sensoraansluiting en PWM-gestuurde lichteffecten. Vervolgens gaat u aan de slag met praktische toepassingen, waaronder: Een Wi-Fi-weerstation met OLED-display en actuele online weergegevens Een ultrasone parkeerassistent met akoestische feedback Een koelkastmonitor met klimaatsensoren en Deep Sleep voor jarenlang batterijgebruik Een retro Pong-spel dat contactloos met een sensor wordt bestuurd Een microfoongebaseerde party-app die reageert op handgeklap En nog veel meer: lichtregeling, reactietijdmeting, analyse van de netfrequentie, bodemvochtmeting, sfeerverlichting met leds en 7-segmentdisplays Seeed Studio XIAO ESP32C3 De Seeed Studio XIAO ESP32C3 is uitgerust met een sterk geïntegreerde ESP32-C3-chip, gebaseerd op een 32-bits RISC-V-processor met een viertraps pipeline die werkt met een kloksnelheid tot 160 MHz. Het board beschikt over een sterk geïntegreerde ESP32-C3 SoC. De chip bevat een volledig 2,4-GHz Wi-Fi-subsysteem en ondersteunt daarmee Station-modus, SoftAP-modus, SoftAP & Station-modus en promiscuous-modus voor uiteenlopende Wi-Fi-toepassingen. Tegelijkertijd werkt de chip met een zeer laag energieverbruik en ondersteunt hij Bluetooth 5 en Bluetooth Mesh. Met 400 KB SRAM en 4 MB Flash biedt de chip voldoende programmeerruimte en volop mogelijkheden voor IoT-besturingstoepassingen. Toepassingen Internet of Things Wearables Gezondheidsmonitoring Onderwijs Energiezuinige netwerken Snelle prototyping Specificaties Processor ESP32-C3 SoC RISC-V single-core 32-bit chip processor with a four-stage pipeline that operates at up to 160 MHz Wireless Complete 2.4GHz Wi-Fi subsystem Bluetooth Low Energy 5.0/ Bluetooth Mesh On-chip Memory 400 KB SRAM & 4 MB Flash Interface 1x UART, 1x I²C, 1x SPI, 11x GPIO (PWM), 4x ADC 1x Reset button, 1x Boot button Power (Typ.) Max 3.3 V Output Current: 500 mA Test Condition: BAT Pin Input @ 3.8 V Source Capability: 3 A Charging current: 380 mA(Fast) / 40 mA(Trickle) Input voltage (VIN): 5 VInput voltage (BAT): 3.7 V Deep Sleep Power Consumption Deep Sleep Mode: 44 μA Wi-Fi Enabled Power Consumption Active Mode: 75 mA Modem-sleep Mode: 25 mA Light-sleep Mode: 4 mA BLE Enabled Power Consumption Modem-sleep Mode: 27 mA Light-sleep Mode: 10 mA Dimensions 21 x 17.8 mm Inbegrepen 1x Seeed Studio XIAO ESP32C3 1x Antenne 2x 7-pins header Downloads Wiki Datasheet Deze bundel bevat: Boek: Build Smart Projects with the XIAO ESP32-C3 Board (t.w.v. € 35) Board: Seeed Studio XIAO ESP32C3 (t.w.v. € 10)

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Hardware-Design mit FPGA (E-book)

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The Peak Atlas DCA55 is great for automatically identifying the type of semiconductor on the test leads as well as the pinout and many other parameters. Supports transistors MOSFETs, JFETs (gate pin only can be identified), diodes, LEDs and lots more. Automatically identifies type of component, pinout and other important parameters. Now features transistor leakage measurement and Germanium/Silicon identification. Component Support Bipolar transistors (NPN/PNP inc Silicon/Germanium) Darlington transistors (NPN/PNP) Enhancement mode MOSFETs (N-Ch and P-Ch) Depletion mode MOSFETs (N-Ch and P-Ch) Junction FETs (N-Ch and P-Ch). Only gate lead identified. Diodes and diode networks (2 and 3 lead types). LEDs and bi-colour LEDs (2 lead and 3 lead types). Low power sensitive Triacs and Thyristors (<5 mA trigger and hold) Measurements Part type identification Pinout identification BJT current gain (hFE) BJT base emitter voltage (Vbe) BJT collector leakage current MOSFET gate threshold voltage Diode forward voltage drop (Vf) Specificaties Analyzer type Transistors, Diodes, LEDs, MOSFETs, JFETs Pinout detection Full pinout (only Gate on JFETs) Pinout configuration Connect any way round Transistor measurements Vbe, hFE, Iceo MOSFET measurements Vgs(on) Diode measurements Vf Probe type Universal grabber type Battery Single AAA cell (supplied). Life typically 1300 ops Test conditions Typically 5 mA, 5 V peak Display type Alphanumeric LCD (with backlight) Inbegrepen DCA55 Semiconductor Component Analyser instrument Comprehensive illustrated user guide Fitted universal hook probes AAA Alkaline battery Downloads Datasheet (EN) User Guide (EN)

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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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35 Touch Develop & MicroPython Projects The BBC micro:bit is a credit sized computer based on a highly popular and high performance ARM processor. The device is designed by a group of 29 partners for use in computer education in the UK and will be given free of charge to every secondary school student in the UK. The device is based on the Cortex-M0 processor and it measures 4 x 5 cm. It includes several important sensors and modules such as an accelerometer, magnetometer, 25 LEDs, 2 programmable push-button switches, Bluetooth connectivity, micro USB socket, 5 ring type connectors, and a 23-pin edge connector. The device can be powered from its micro USB port by connecting it to a PC, or two external AAA type batteries can be used. This book is about the use of the BBC micro:bit computer in practical projects. The BBC micro:bit computer can be programmed using several different programming languages, such as Microsoft Block Editor, Microsoft Touch Develop, MicroPython, and JavaScript. The book makes a brief introduction to the Touch Develop programming language and the MicroPython programming language. It then gives 35 example working and tested projects using these language. Readers who learn to program in Touch Develop and MicroPython should find it very easy to program using the Block Editor or any other languages. The following are given for each project: Title of the project Description of the project Aim of the project Touch Develop and MicroPython program listings Complete program listings are given for each project. In addition, working principles of the projects are described briefly in each section. Readers are encouraged to go through the projects in the order given in the book.

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Das 1-Wire-Praxisbuch

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Raspberry Pi goes Industry (E-book)

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Inhalt Theorie & Anwendung Thermische Simulation von LED-Systemen LUVLED 100 LEDs LEDs ans Netz Laserstrukturierung von TCOs Ha(l)lo LED Wärmemanagement bei LEDs 3D-Laserscanning mit Linienlaser und Smart Camera Selbstbauprojekte Lichtbögen für die Modelleisenbahn LED-Anwendungen mit Arduino LED-Treiber für Maglite-Taschenlampe

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If you enjoy DIY electronics, projects, software and robots, you’ll find this book intellectually stimulating and immediately useful. With the right parts and a little guidance, you can build robot systems that suit your needs more than overpriced commercial systems can. 20 years ago, robots based on simple 8-bit processors and touch sensors were the norm. Now, it’s possible to build multi-core robots that can react to their surroundings with intelligence. Today’s robots combine sensor readings from accelerometers, gyroscopes and computer vision sensors to learn about their environments. They can respond using sophisticated control algorithms and they can process data both locally and in the cloud. This book, which covers the theory and best practices associated with advanced robot technologies, was written to help roboticists, whether amateur hobbyist or professional, take their designs to the next level. As will be seen, building advanced applications does not require extremely costly robot technology. All that is needed is simply the knowledge of which technologies are out there and how best to use each of them. Each chapter in this book will introduce one of these different technologies and discuss how best to use it in a robotics application. On the hardware side, we’ll cover microcontrollers, servos, and sensors, hopefully inspiring you to design your own awe-inspiring, next-generation systems. On the software side, we’ll cover programming languages, debugging, algorithms, and state machines. We’ll focus on the Arduino, the Parallax Propeller, Revolution Education PICAXE and projects I’ve with which I’ve been involved, including the TBot educational robot, the PropScope oscilloscope, the 12Blocks visual programming language, and the ViewPort development environment. In addition, we’ll serve up a comprehensive introduction to a variety of essential topics, including output (e.g. LEDs, servo motors), and communication technologies (e.g. infrared, audio), that you can use to develop systems that interact to stimuli and communicate with humans and other robots. To make these topics as accessible as possible, handy schematics, sample code and practical tips regarding building and debugging have been included. Hanno Sander Christchurch, New Zealand

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