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The Red Pitaya (STEMlab) is a credit card-sized, open-source test and measurement board that can be used to replace most measurement instruments used in electronics laboratories. With a single click, the board can transform into a web-based oscilloscope, spectrum analyser, signal generator, LCR meter, Bode plotter, and microcontroller. The Red Pitaya (STEMlab) can replace the many pieces of expensive measurement equipment found at professional research organisations and teaching laboratories. The device, that based on Linux, includes an FPGA, digital signal processing (DSP), dual core ARM Cortex processor, signal acquisition and generation circuitry, micro USB socket, microSD card slot, RJ45 socket for Ethernet connection, and USB socket – all powered from an external mains adaptor. This book is an introduction to electronics. It aims to teach the principles and applications of basic electronics by carrying out real experiments using the Red Pitaya (STEMlab). The book includes many chapters on basic electronics and teaches the theory and use of electronic components including resistors, capacitors, inductors, diodes, transistors, and operational amplifiers in electronic circuits. Many fun and interesting Red Pitaya (STEMlab) experiments are included in the book. The book also makes an introduction to visual programming environment. The book is written for college level and first year university students studying electrical or electronic engineering.

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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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Beginselen van het programmeren Eenvoudige projecten voor beginners Interface- en hardware-uitbreidingen Complexe projecten voor gevorderden Twee zaken hebben in belangrijke mate bijgedragen aan het grote succes van het Arduinoplatform. De eerste is de complete, gebruiksklare processorprint die de kennismaking met dehardware aanzienlijk vergemakkelijkt. En de tweede is de gratis verkrijgbare programmeerinterface, die zonder ingewikkelde installatieprocedures meteen gebruikt kan worden. Eenvoudige projecten voor beginners garanderen snelle resultaten. Het is niet nodig eerst ingewikkelde parameters (processortype of interface-instellingen) te selecteren -- de eerste voorbeeldprogramma's kunnen al na enkele minuten in de Arduino worden geladen en uitgeprobeerd. De Arduino-gebruiker wordt geholpen door een groot aantal software-bibliotheken -- maar deze nog dagelijks groeiende schat aan libraries vormt juist voor de beginner een luxe-probleem: na de eerste eenvoudige voorbeelden is het niet altijd even duidelijk hoe het nu verder moet. Bij de in het internet circulerende projecten ontbreekt het in veel gevallen aan gedetailleerd commentaar en uitleg. Er is geen duidelijk herkenbare leidraad, en eigenlijk is dat ook niet zo vreemd omdat de toepassingen door verschillende mensen voor verschillende doeleinden zijn ontwikkeld. Dat is waar dit boek te hulp komt. Projecten worden op een systematische manier gepresenteerd, waarbij elk project een ander onderwerp belicht. De aanpak is praktijkgericht, maar de noodzakelijke theoretische achtergrond wordt daarbij niet uit het oog verloren. Belangrijke onderwerpen zoals A/D-omzetting, timers en interrupts worden steeds in praktische projecten 'ingebed'. In het boek komen zaken als looplicht-effecten, praktisch bruikbare voltmeters, nauwkeurige digitale thermometers, allerlei soorten klokken, reactietesters en zelfs een muisgestuurde robotkraan aan de orde. En al lezende en doende krijgt de lezer een gedegen inzicht in de achterliggende controllertechnieken.

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The SEQURE T55 Smart Mini Temperature Adjustable Soldering Hot Plate is a compact and efficient tool designed for precise preheating and desoldering tasks. With its adjustable temperature range from 50°C to 280°C (122°F to 536°F), it is suitable for various applications, e.g. cell phone repair, PCB assembly, etc. Features Adjustable heating temperature range: 50°C to 280°C (122°F to 536°F) Equipped with a heat-resistant ceramic temperature sensor, ensuring high-accuracy data measurement under continuous high temperatures. Automatically stops heating after reaching the preset working time. Supports PD, QC, and DC (max 25 V). Intelligent temperature control algorithm for temperature compensation and power adjustment. 128 x 32 resolution OLED display with a built-in buzzer to indicate operating status. °C/°F conversion Specifications Heating Area 55 x 55 mm Working Temperature 50-280°C (122-536°F) Max Voltage 25 V Max Power 95 W Recommend Voltage 19-25 V PD Power Supply PD 20 V ≥3A Power Supply Modes PD, QC, DC Interface USB-C Display 128 x 32 OLED Menu Languages English, Russian, and Chinese Dimensions 55 x 60 x 37 mm Weight 92 g Included 1x SEQURE T55 Smart Mini Soldering Hot Plate 1x PD 65 W Power Supply (EU) 1x Fast Charging Cable (100 W/5 A)

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The Andonstar AD409 Pro-ES is a digital microscope with an extra-high stand that is also equipped with an endoscope. The microscope allows clear observation of the sides of components, the inside of pipes, etc., enabling 360° observation without dead angles. The microscope also has a remote control that allows you to easily switch between the following image modes: two-lens, microscope and endoscope. Features High-quality metal lens and focusing barrel Professional HDMI digital microscope supports multiple output methods Soldering Microscope with Pro Metal Stand Unique UV filter design 8 Levels adjustable LED Lights Convenient Wireless Remote Control Professional Measurement Software Specifications Screen size 10.1 inch (25.7 cm) Image sensor 4 MP Video output UHD 2880x2160 (24fps)FHD 1920x1080 (60fps/30fps)HD 1280x720 (120fps) Video format MP4 Magnification Up to 300 times (27 inch HDMI monitor) Photo resolution Max. 12 MP (4032x3024) Photo format JPG Focus range Min. 5 cm Frame Rate Max. 120fps Video interface HDMI Storage microSD card (up to 64 GB) PC support Windows, PC software with measurement Mobile phone, tablet terminal support Support WiFi connection and measurement Power source 5 V DC Light source 2 LEDs with the stand Endoscope Yes Stand size 18 x 20 x 32 cm Included 1x Andonstar AD409 Pro-ES Digital Microscope 1x Endoscope 1x Metal stand with 2 LEDs 1x UV filter (already assembled in the lens) 1x IR remote 1x Switch cable 1x Power adapter 1x Wrench 2x Metal clips 1x HDMI cable 1x User manual Downloads Manual Software

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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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Met ringkern-uitgangstranformatoren Buizenversterkers vormen voor velen het neusje van de zalm, wanneer het gaat om de versterking van audiosignalen. De combinatie van klassieke techniek met moderne componenten heeft geleid tot een ware revival van de buizenversterker. De toepassing van de in de afgelopen 15 jaar door de auteur ontwikkelde 'ringkern-uitgangstransformatoren' heeft daar mede toe bijgedragen. Opvallend aan deze transformatoren zijn vooral het extreem grote frequentie bereik en de geringe lineaire en niet-lineaire vervormingen. Het hoe en waarom van de transformator wordt op verschillende niveaus uitgelegd, beginnend bij inleidende begripsvorming en eindigende bij complete wiskundige beschrijvingen, waarbij ook de samenwerking van de transformator met de buizen en de luidspreker centraal staat. Naast de beschrijving van schematuur en zelfbouw van eenvoudig na te bouwen moderne high-end buizenversterkers met een uitgangsvermogen van 10 tot 100 Watt, worden bijzondere buizenversterkers met ringkerntransformatoren besproken: innovatieve oplossingen voor perfecte audiokwaliteit. Zowel de zelfbouwer als degene die kennis en inzicht wil verwerven in de complexe materie van transformatoren, buizenversterkers en audiosignaalverwerking zal dit boek met plezier ter hand nemen.

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Ready to explore the world around you? By attaching the Sense HAT to your Raspberry Pi, you can quickly and easily develop a variety of creative applications, useful experiments, and exciting games. The Sense HAT contains several helpful environmental sensors: temperature, humidity, pressure, accelerometer, magnetometer, and gyroscope. Additionally, an 8x8 LED matrix is provided with RGB LEDs, which can be used to display multi-color scrolling or fixed information, such as the sensor data. Use the small onboard joystick for games or applications that require user input. In Innovate with Sense HAT for Raspberry Pi, Dr. Dogan Ibrahim explains how to use the Sense HAT in Raspberry Pi Zero W-based projects. Using simple terms, he details how to incorporate the Sense HAT board in interesting visual and sensor-based projects. You can complete all the projects with other Raspberry Pi models without any modifications. Exploring with Sense HAT for Raspberry Pi includes projects featuring external hardware components in addition to the Sense HAT board. You will learn to connect the Sense HAT board to the Raspberry Pi using jumper wires so that some of the GPIO ports are free to be interfaced to external components, such as to buzzers, relays, LEDs, LCDs, motors, and other sensors. The book includes full program listings and detailed project descriptions. Complete circuit diagrams of the projects using external components are given where necessary. All the projects were developed using the latest version of the Python 3 programming language. You can easily download projects from the book’s web page. Let’s start exploring with Sense HAT.

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Smart-Home-Systeme selber bauen Smart Home- und IoT-Technik für den Arduino bietet eine Fülle von Praxisprojekten, die mit einem einzigen Kit aufgebaut werden können. Das "SunFounder Smart Home Internet of Things Kit V2.0 for Arduino" enthält über 30 Komponenten, Bauelemente und Module aus allen Bereichen der modernen Elektronik. Damit lassen sich eine Fülle von Projekten realisieren. Für den Einsteiger werden zunächst einige einfachere Einsteigerexperimente vorgestellt. Der fortgeschrittenere Anwender kann sich dagegen gleich an die komplexeren Themen heranwagen. Neben präzisen digitalen Thermometern, Hygrometern, Belichtungsmessern und verschiedenen Alarmanlagen entstehen auch praktisch einsetzbare Geräte und Anwendungen wie etwa eine vollautomatische Beleuchtungssteuerung ein digitales Thermostat eine multifunktionale Klimamessstation Zudem wird detailliert erklärt, wie Messdaten in das Internet übertragen werden. Dort sind sie grafisch darstellbar und können weltweit abgerufen werden. Auch auf die damit verbundenen Gefahren und die Problematik des Datenschutzes wird eingegangen. Die vorgestellten Praxisprojekte bleiben dabei aber nicht im Status eines „Laborprototyps“ stehen. Durch entsprechende Tipps und Hinweise entstehen vielmehr praxistaugliche Geräte, die in Haushalt, Hobby und Beruf eingesetzt werden können. Selbstverständlich können sämtliche Bauteile auch einzeln beschafft werden, so dass sich die Projekte im Buch auch ohne das komplette IoT-Kit durchführen lassen.

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Das ESP8266-Praxisbuch (E-book)

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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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Stromversorgungen in der Praxis (E-book)

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