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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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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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Learn to program displays and GUIs with Python This book is about Raspberry Pi 4 display projects. The book starts by explaining how to install the latest Raspbian operating system on an SD card, and how to configure and use the GPIO ports. The core of the book explains the following topics in simple terms with fully tested and working example projects: Simple LED projects Bar graph LED projects Matrix LED projects Bitmap LED projects LED strips LCDs OLED displays E-paper displays TFT displays 7-inch touch screen GUI Programming with Tkinder One unique feature of this book is that it covers almost all types of display that readers will need to use in their Raspberry Pi based projects. The operation of each project is fully given, including block diagrams, circuit diagrams, and commented full program listings. It is therefore an easy task to convert the given projects to run on other popular platforms, such as Arduino or PIC microcontrollers. Python program listings of all Raspberry Pi projects developed in this book are available for download at Elektor.com. Readers can use these programs in their projects. Alternatively, they can modify the programs to suit their applications.

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Learning circuit design the fun way Welcome to the world of electronics! Getting started in electronics is not as difficult as you may think. Using this book, you will explore and learn the most important electrical and electronics engineering concepts in a fun way by doing various experiments and by simulating circuits. It will teach you electronics practically without getting into complex technical jargon and long calculations. As a result, you will be creating your own projects soon. No prior knowledge of electronics is required, only some basic algebra is used in a few simple calculations. Many tested and working projects and simulations are presented to familiarise yourself with the construction of electronic circuits. Circuit simulation is introduced at an early stage to enable you to experiment with circuits easily without breaking anything. You will learn: The concepts of voltage, current, and power AC and DC Basic lamp circuits with switches Passive components: resistors, capacitors & inductors RC & RCL circuits Electromagnetism Loudspeakers, relays, buzzers, and transformers Active components: diodes & LEDs, bipolar transistors & MOSFETs Transistor-based switching circuits Optocoupler circuits Astable & monostable multivibrators Using the 555 timer IC The operational amplifier Digital logic Advanced examples: amplifiers, oscillators, filters, and sensors Test and measurement tools Microcontrollers: Arduino UNO, ESP32, Raspberry Pi Pico, and Raspberry Pi Reading datasheets and best practices for selecting components EMC & EMI and norms & regulations

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Elektronik-Praxis für Einsteiger (E-book)

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Learn, Build, and Understand Electronics – with Elektor Projects, Expert Knowledge, Archive Access, and Exclusive Discounts – All in One Membership Would you like to learn electronics, develop your own circuits, and gain a better understanding of modern technologies? Elektor Magazine has been one of the leading sources of information for electronics engineers, developers, start-ups, and companies for 65 years. With an Elektor Green Membership, you get: ✅  The international electronics magazine Elektor (in digital format) ✅  Access to the Elektor archive with 65 years of electronics know-how ✅  DIY projects, tested circuits, in-depth reviews and tutorials ✅  Exclusive member discounts at Elektor.com Why Elektor? For 65 years, Elektor has stood for in-depth electronics knowledge, practical projects, and innovative technologies. From microcontrollers and embedded systems to Raspberry Pi, Arduino, and ESP32, as well as IoT, AI, measurement technology, audio, RF, and robotics, Elektor covers the key platforms and application areas of modern electronics. Whether you are a beginner, maker, or professional – Elektor helps you take your skills to the next level. Who Is This Membership for? Beginners – Start your journey into electronics with clear fundamentals and first projects Makers – Discover new projects, ideas, and inspiration for your own developments Professionals & Engineers – Stay up to date with modern technologies and deepen your expertise Your Benefits at a Glance Magazine (Digital) – Receive every issue digitally, delivered straight to your inbox 65 Years of Electronics Knowledge – Access the extensive Elektor archive anytime (since 1974) Hands-on Projects – Turn your ideas into reality with guides, circuits, and tutorials Exclusive Discounts – Save on every purchase at Elektor.com Unlock All Elektor Benefits Today! Free Membership Green Membership ❌  8x Elektor Magazine (Digital Edition) as PDF ✅  8x Elektor Magazine (Digital Edition) as PDF ❌  12 Months of Access to the Full Elektor Archive ✅  12 Months of Access to the Full Elektor Archive ❌  Access to Over 5,000 Gerber Files ✅  Access to Over 5,000 Gerber Files ❌  10% Member Discount at Elektor.com ✅  10% Member Discount at Elektor.com ✅  Read Elektor weekly every Friday ✅  Read Elektor weekly every Friday ℹ️  Do you prefer reading Elektor Magazine in print? Find out everything about the Elektor Gold Membership (Print) here.

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Easy and Affordable Digital Signal ProcessingThe aim of this book is to teach the basic principles of Digital Signal Processing (DSP) and to introduce it from a practical point of view using the bare minimum of mathematics. Only the basic level of discrete-time systems theory is given, sufficient to implement DSP applications in real time. The practical implementations are described in real time using the highly popular ESP32 DevKitC microcontroller development board. With the low cost and extremely popular ESP32 microcontroller, you should be able to design elementary DSP projects with sampling frequencies within the audio range. All programming is done using the popular Arduino IDE in conjunction with the C language compiler.After laying a solid foundation of DSP theory and pertinent discussions on the main DSP software tools on the market, the book presents the following audio-based sound and DSP projects: Using an I²S-based digital microphone to capture audio sound Using an I²S-based class-D audio amplifier and speaker Playing MP3 music stored on an SD card through an I²S-based amplifier and speaker Playing MP3 music files stored in ESP32 flash memory through an I²S-based amplifier and speaker Mono and stereo Internet radio with I²S-based amplifiers and speakers Text-to-speech output with an I²S-based amplifier and speaker Using the volume control in I²S-based amplifier and speaker systems A speaking event counter with an I²S-based amplifier and speaker An adjustable sinewave generator with I²S-based amplifier and speaker Using the Pmod I²S2 24-bit fast ADC/DAC module Digital low-pass and band-pass real-time FIR filter design with external and internal A/D and D/A conversion Digital low-pass and band-pass real-time IIR filter design with external and internal A/D and D/A conversion Fast Fourier Transforms (FFT)

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Met behulp van de lessen in dit boek leert u hoe u zelf een microcontroller kunt programmeren. We maken daarbij gebruik van JAL, een gratis maar uiterst krachtige programmeertaal voor PIC microcontrollers, die in de hobbywereld erg populair is. We starten aan het absolute begin, en bouwen vandaar de kennis op. U heeft dus geen voorkennis nodig: iedereen kan met dit boek aan de slag. Wanneer u alle lessen volgt (dat wil zeggen: de oefeningen ook daadwerkelijk maakt) dan kunt u wanneer u het boek uit heeft zelf PIC microcontroller programma’s schrijven, en programma’s van anderen lezen. JAL opdrachten U leert de functie van JAL opdrachten zoals include, pin, delay, forever loop, while loop, case, exit loop, repeat until, if then, en het gebruik van functies, procedures en timer- en poortinterrupts. JAL programma’s U laat een LED knipperen, maakt een tijdschakelaar, meet de stand van een potmeter, maakt geluiden, voorkomt contactdender en regelt de helderheid van een LED. En uiteraard leert u debuggen: hoe u in uw programma’s fouten kunt vinden en oplossen. Hardware U leert verschillende onderdelen zoals PIC microcontroller, potmeter en kristal herkennen, en hoe u een PIC microcontroller aan moet sluiten en met uw PC moet verbinden. U maakt hierbij gebruik van een steekbord zodat u de opstelling gemakkelijk kunt aanpassen om verder te experimenteren.

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Mit Arduino – Schaltungsprojekte für Profis wird der Leser umfassend in die Hardware und Software der Arduino-Plattform eingeführt. Einfache, leicht verständliche Projekte am Anfang des Buches führen Schritt für Schritt in die Open-Source-Plattform ein. Die Projekte werden dann zunehmend komplexer, um dem Leser möglichst viele konkrete Lösungsmöglichkeiten aufzuzeigen, die mit dem Arduino-Mikrocontroller auch für angehende Profis zur Verfügung stehen. Dabei wird neben den erforderlichen theoretischen Grundlagen stets größter Wert auf eine praxisorientierte Ausrichtung gelegt. So werden wichtige Techniken wie AD-Wandlung, Timer oder Interrupts stets in Praxisprojekte eingebettet. Es entstehen Lauflichteffekte, ein Aufwachlicht, voll funktionsfähige Voltmeter, präzise Digitalthermometer, Uhren in allen Variationen, Reaktionszeitmesser oder mausgesteuerte Roboterarme. Und ganz nebenbei hat der Leser die Grundlagen der zugehörigen Controller-Technik verstanden und im wahrsten Sinne des Wortes begriffen.

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En moins de 100 lignes de code par projet avec les cartes Feather Sense et Clue Express d'Adafruit Le langage de programmation Python est apprécié par les pédagogues parce que sa syntaxe le rend facile à comprendre. Il s'est également imposé chez les informaticiens expérimentés. La société Adafruit a développé une version spéciale de Python pour l'embarquer sur les microcontrôleurs à 32 bits : CircuitPython. Ce livre permettra au lecteur de s'initier à la programmation en CircuitPython sur deux cartes : Feather BlueFruit Sense (également appelée Feather nRF52840 Sense) et CLUE nRF52840 Express. Chacune est animée par le SoC nRF52840 de NORDIC avec une architecture à 32 bits. Pour ce voyage dans le monde de la programmation embarquée, l'auteur sort du chemin classique, à savoir un cours complet sur la programmation orientée objet appliquée à ce langage. Il préfère emmener le lecteur directement sur le terrain avec des projets qui mettent en oeuvre les cartes et différents périphériques. Plus d'une quarantaine d'exemples et de montages permettent de découvrir la richesse de CircuitPython. Toutefois l'auteur s'est imposé une limite pour ne pas décourager les novices : le code de chaque projet ne dépasse jamais la centaine de lignes. Pour ce qui est du matériel, là aussi la simplicité domine : aucun programmateur, un simple PC suffit ; aucun soudage grâce au câblage sur platine d'essai. Les cartes d'extension FeatherWing à enficher sur la Feather nRF52840 Sense permettent de démultiplier ses fonctions : matrice de LED, enregistreur de données, écran à encre électronique, écran OLED, écran TFT, commande de moteurs, audio, relais… Toutes les étapes (assemblage des différents composants, installation des bibliothèques requises, programmation, tests…) sont expliquées en détail. Le code des différents exemples et projets est disponible sur Github. Le résultat de chaque projet est même présenté sur de courtes vidéos disponibles sur YouTube. À la fin de sa lecture, le nouveau Pythonien pourra facilement approfondir les notions abordées et donner vie à ses propres projets grâce aux outils qu'il aura essayés. Ce livre s'adresse aux lycéens et étudiants ainsi qu'à toute la communauté des makers. Chaîne YouTube de l'auteur : YouTube (Michaël Bottin)

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Hands-on in more than 50 projects STM32 Nucleo family of processors are manufactured by STMicroelectronics. These are low-cost ARM microcontroller development boards. This book is about developing projects using the popular STM32CubeIDE software with the Nucleo-L476RG development board. In the early Chapters of the book the architecture of the Nucleo family is briefly described. The book covers many projects using most features of the Nucleo-L476RG development board where the full software listings for the STM32CubeIDE are given for each project together with extensive descriptions. The projects range from simple flashing LEDs to more complex projects using modules, devices, and libraries such as GPIO, ADC, DAC, I²C, SPI, LCD, DMA, analogue inputs, power management, X-CUBE-MEMS1 library, DEBUGGING, and others. In addition, several projects are given using the popular Nucleo Expansion Boards. These Expansion Boards plug on top of the Nucleo development boards and provide sensors, relays, accelerometers, gyroscopes, Wi-Fi, and many others. Using an expansion board together with the X-CUBE-MEMS1 library simplifies the task of project development considerably. All the projects in the book have been tested and are working. The following sub-headings are given for each project: Project Title, Description, Aim, Block Diagram, Circuit Diagram, and Program Listing for the STM32CubeIDE. In this book you will learn about STM32 microcontroller architecture; the Nucleo-L476RG development board in projects using the STM32CubeIDE integrated software development tool; external and internal interrupts and DMA; DEBUG, a program developed using the STM32CubeIDE; the MCU in Sleep, Stop, and in Standby modes; Nucleo Expansion Boards with the Nucleo development boards. What you need a PC with Internet connection and a USB port; STM32CubeIDE software (available at STMicroelectronics website free of charge) the project source files, available from the book’s webpage hosted by Elektor; Nucleo-L476RG development board; simple electronic devices such as LEDs, temperature sensor, I²C and SPI chips, and a few more; Nucleo Expansion Boards (optional).

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This book is about advanced programming of the Raspberry Pi computer using the Python programming language. The book explains in simple terms and with examples: How to configure the Raspberry Pi computer; How to install and use the Linux operating system and the desktop; How to write advanced programs using the Python programming language; How to use graphics in our programs; How to develop hardware based projects using the Raspberry Pi. The book starts with an introduction to the Raspberry Pi computer and covers the topics of purchasing all the necessary accessories and installing and operating the Linux operating system in command mode. The network interface of the RPi is explained in simple steps, demonstrating how the computer can be accessed remotely from a desktop or a laptop computer. The remaining parts of the book cover the Python programming language in detail, including advanced topics such as operating system calls, multitasking, interprocess synchronization and interprocess communication techniques. The important topic of network programming using UDP and TCP protocols is described with working examples. The Tkinter graphical user interface module (GUI) is described in detail with example widgets and programs. The last part of the book includes hardware projects based on using the advanced programming topics such as multitasking and interprocess communication techniques. All the projects given in the book have been fully tested and are working. Complete program listings of all projects are provided with detailed explanations.

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