Search results for "iot OR home OR hacks OR with OR esp8266 OR e OR book"

Ook in deze tijd klinken buizenversterkers nog steeds fantastisch, misschien wel mooier dan ooit. Nu hebben we immers de beschikking over moderne materialen als ringkern uitgangstransformatoren, uiterst hoogwaardige weerstanden en condensatoren en vele soorten goed klinkend draad. Ook de moderne geluidsbronnen als de CD speler en de nieuwste hoogwaardige luidsprekers laten beter dan ooit horen hoe goed de buizenversterker weergeeft. Dit boek van Menno van der Veen kijkt niet alleen theoretisch naar buizenversterkers, maar vooral ook naar de ontwerpfase waarin besluiten moeten worden genomen over de doelen en eisen van de versterker. Hoe hangen deze samen met subjectieve en objectieve criteria? Welke schakelingen klinken vooral prachtig en waarom doen ze dat? Stel dat je een versterker gaat ontwikkelen en in de handel wilt brengen, tegen welke problemen loop je dan aan? En wat te zeggen van het belang en de betekenis van metingen? Zeggen ze nu iets of zeggen ze niets? Dankzij de grote rekenkracht van de computer kunnen we tegenwoordig dieper meten dan ooit. Hoe pas je deze technieken toe bij buizenversterkers? Tot nu toe waren metingen over frequentiebereik en vermogen en vervorming voldoende om een beeld van de eigenschappen van een versterker te geven. Maar zijn zulke metingen voldoende of moeten we gaan meten zoals ons oor waarneemt, met echte muzieksignalen in plaats van meettoontjes? De auteur schetst een toekomst waarbij meten aan de versterker de eigenschappen van ons horen moet volgen om tot nieuwe inzichten te komen. Dit boek is meer op de praktijk gericht dan op de theorie en heeft een beschouwend karakter, alsof de auteur van bovenaf naar de buizenversterker kijkt. Kenniselementen worden geïntegreerd en in een breed overzichtelijk kader geplaatst.

Read (+) (–)

The Vision and Engineering Behind SparkFun Getting Started with MicroMod Leveling Up Your SparkFun JetBotHow I Expanded the Functionality of My JetBot, Powered by the NVIDIA Jetson Nano Programming an FPGA How to Build a DIY GNSS Reference Station The ClockClock Project Under the Hood: SparkFun Inventor's Kit SparkFun’s Glenn Samala on Product Development and New Ventures Creating Custom Circuit Boards with SparkFun À La Carte Designing with the SparkFun Artemis Getting Started with the Qwiic Ecosystem for Rapid Prototyping Poster - Qwiic Under the Hood: The GreatScott! / Elektor DIY LiPo Supercharger Kit Memorable Electronics from SparkFun Past Perfect Parking with LiDAR Buried Pad PCB Fixing Design to Sale: the SparkFun RTK Surveyor Hello World from the Raspberry Pi Pico and RP2040A Look at Raspberry Pi’s First Microcontroller and Microcontroller Chip DIY Quadrupedal Robots Poster - Micromod RISC-V IoT Development in AWS Using FreeRTOS Libraries Yep, Electronics = Fun!A Conversation Among Electronics Enthusiasts Sparkfun Product Catalog HexadokuThe Original Elektorized Sudoku

Read (+) (–)

Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden.Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Raspberry Pi Pico als spectrumanalyzerFFT’s met goedkope hardware ±40 V lineaire spanningsregelaaralternatieve voeding voor de Fortissimo-100 eindversterker... en andere! Flexibele draadloze communicatie met een MCUEEPROM opent netwerkmogelijkheden voor draadloze MCU’s € 5000 voor het oprapen!doe mee aan de STM32 Wireless Innovation Design Contest 2023: een AI-odysseeaan de slag met Code Interpreter van ChatGPT LoRa – een Zwitsers zakmesdeel 1: het LoRa-protocol en zijn voordelen Instelbare current sink met geïntegreerde klokgeneratortest voedingen, spanningsconverters en accu’s Twee nieuwe Arduino UNO R4-boards: Minima en WiFi Logaritmische potentiometersze zijn exponentieel! Motordriver breakout-boardeen BoB voor een 5 A DC-motordriver van 3×3 mm Uit het leven gegrepenelektronica periculosa Biedt cellulair het laagste stroomverbruik voor IoT?energie-eisen van LTE-M en NB-IoT in LPWAN-implementaties Draadloze communicatie in IoT-systemen met Arduino MKR-moduleshet juiste board voor WiFi, LoRa en andere standaarden AC-verliezen in magnetische componentenvoorkom hete spoelen! Meten voor optimale cloud-connectiviteit Matter implementatie: Wat is er nodig om Matter-devices in te zetten? YARD Stick Onesub-1 GHz draadloos testtool Houdrelaisvreemde onderdelen PIC voor tien – precies op tijdontwerp van een SDR-tijdseinontvanger Due Diligence DirectiveBusiness as Usual Will Not Do Alle begin......versterkt spanningen Infrageluid-recorder met de Arduino Pro Minieen voorbeeldproject uit de Elektor-uitgave “Arduino & Co” Cloud-gebaseerde energiemetermet een ESP32-module en een PZEM-004T spanning/stroom-sensor Een gids voor puristisch programmeren (deel 2)nauwkeurige timing, de UART en debugging

Read (+) (–)

Praktische Einführung in 3D-Modellierung vom Gehäuse bis zu Frontplatten Ein historisches Bauteil einbetten, eine professionell anmutende Heimstätte für eine Leiterplatte schaffen oder ein komplexes Gerät mit Chassis konstruieren – diese und viele andere Herausforderungen werden mit FreeCAD zu einem anregenden Vergnügen. Hat man die grundlegenden Prozesse erst einmal verinnerlicht, sind der Fantasie praktisch keine Grenzen mehr gesetzt. Der Einstieg in ein neues Programm ist immer schwierig – besonders wenn es sich um ein so vielfältiges Werkzeug wie FreeCAD handelt. Überschaubare, aber zugleich gut verwendbare Einzelteile liefern in diesem Buch den Anfangspunkt. Das Zusammensetzen dieser Komponenten führt später zu Baugruppen. In der Vielfalt der Möglichkeiten von FreeCAD wird ein gangbarer Weg gezeigt. Das beschriebene Vorgehen ist exemplarisch – die Beispiele lassen sich daher leicht auf eigene Aufgaben anwenden. Die Geräte wurden vom Autor angefertigt und mit Fotos illustriert. Eine 3D-Konstruktion erfordert etwas Aufwand, der sich aber lohnt: Neben einer beeindruckenden Darstellung von Projekten wird zugleich die Möglichkeit geliefert, z. B. Blechteile zur Fertigung abzuwickeln und für die Werkstatt aussagekräftige Zeichnungen zu exportieren. Schon bald werden Sie auf FreeCAD nicht mehr verzichten wollen!

Read (+) (–)

Sound Secrets and Technology What would today’s rock and pop music be without electric lead and bass guitars? These instruments have been setting the tone for more than sixty years. Their underlying sound is determined largely by their electrical components. But, how do they actually work? Almost no one is able to explain this to the true musician with no technical background. This book answers many questions simply, in an easily-understandable manner. For the interested musician (and others), this book unveils, in a simple and well-grounded way, what have, until now, been regarded as manufacturer secrets. The examination explores deep within the guitar, including pickups and electrical environment, so that guitar electronics are no longer considered highly secret. With a few deft interventions, many instruments can be rendered more versatile and made to sound a lot better – in the most cost-effective manner. The author is an experienced electronics professional and active musician. He has thoroughly tested everything described here, in practice.

Read (+) (–)

A Practical Guide to Tube Electronics Vacuum tubes continue to exert a special fascination. Their long-lasting operation, robustness, and characteristic behavior fundamentally distinguish them from modern semiconductor technology. Despite their age, tubes are by no means merely historical components; they are still used today in audio technology, measurement technology, and especially in hobbyist applications. This book is aimed at electronics enthusiasts and hobbyists who want to not only learn about and understand vacuum tubes in theory, but also use them in practice. It conveys the fundamentals of tube technology, explains the different designs and designations, shows typical circuits, and addresses power supplies, measurements, and safety-related aspects. The focus is on practical explanations and realistic examples from the workshop. Numerous tips help you avoid typical mistakes, build circuits, and understand tube devices and their construction. Basic knowledge of electronics is assumed. Vacuum Tubes: A Practical Guide to Tube Electronics offers an accessible and thorough introduction to tube technology – factual, comprehensible, and with a clear focus on practical applications.

Read (+) (–)

Architecture, Programming and Applications The MSP430 is a popular family of microcontrollers from Texas Instruments. In this book we will work with the smallest type, which is the powerful MSP430G2553. We will look at the capabilities of this microcontroller in detail, as it is well-suited for self-made projects because it is available in a P-DIP20 package. We will take a closer look at the microcontroller and then build, step by step, some interesting applications, including a 'Hello World' blinking LED and a nice clock application, which can calculate the day of the week based on the date. You also will learn how to create code for the MSP microcontroller in assembler. In addition to that, we will work with the MSP-Arduino IDE, which makes it quite easy to create fast applications without special in-depth knowledge of the microcontrollers. All the code used in the book is available for download from the Elektor website.

Read (+) (–)

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.

Read (+) (–)

Computer vision is probably the most exciting branch of image processing, and the number of applications in robotics, automation technology and quality control is constantly increasing. Unfortunately entering this research area is, as yet, not simple. Those who are interested must first go through a lot of books, publications and software libraries. With this book, however, the first step is easy. The theoretically founded content is understandable and is supplemented by many practical examples. Source code is provided with the specially developed platform-independent open source library IVT in the programming language C/C++. The use of the IVT is not necessary, but it does make for a much easier entry and allows first developments to be quickly produced. The authorship is made up of research assistants of the chair of Professor Ruediger Dillmann at the Institut für Technische Informatik (ITEC), Universitaet Karlsruhe (TH). Having gained extensive experience in image processing in many research and industrial projects, they are now passing this knowledge on. Among other subjects, the following are dealt with in the fundamentals section of the book: Lighting, optics, camera technology, transfer standards, camera calibration, image enhancement, segmentation, filters, correlation and stereo vision. The practical section provides the efficient implementation of the algorithms, followed by many interesting applications such as interior surveillance, bar code scanning, object recognition, 3-D scanning, 3-D tracking, a stereo camera system and much more.

Read (+) (–)

Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Raspberry Pi Pico as Spectrum AnalyzerFFTs on a Low-Cost Hardware Basis ±40-V Linear Voltage RegulatorAn Alternative Power Supply for the Fortissimo-100 Power Amplifier… and Others! MCU Wireless Communication Made FlexibleEEPROM Opens Networking Prospects for Wireless MCUs €5,000 up for grabs!Join the STM32 Wireless Innovation Design Contest 2023: An AI OdysseyGetting Started with ChatGPT’s Code Interpreter LoRa, a Swiss Army Knife (1)The LoRa Protocol and Its Advantages Adjustable Current Sink with Integrated Clock GeneratorTest Power Supplies, Voltage Converters and Batteries Two New Arduino UNO R4 Boards: Minima and WiFi Logarithmic PotentiometersThey’re Exponential! Motor Driver Breakout BoardA BoB for a 5 A DC Motor Driver with a 3×3 mm Size From Life’s ExperienceHazardous Electronics Is Cellular the Lowest-Power Option for IoT?LTE-M and NB-IoT Energy Requirements in LPWAN Deployments Wireless Communication in IoT Systems – Using Arduino MKR ModulesThe Right Board for Wi-Fi, LoRa, and Many More Standards AC Losses in Magnetic ComponentsAvoid Hot Inductors! Measurement for Optimal Cloud Deployment Matter Adoption: What does it take to deploy Matter devices? YARD Stick OneA Sub-1 GHz Wireless Test Tool Latching RelaysPeculiar Parts, the Series PIC O’Clock – In Touch with TimeDesigning an SDR Time Signal Receiver Due Diligence DirectiveBusiness as Usual Will Not Do Starting Out in Electronics……Voltage Amplification Infrasound Recorder with the Arduino Pro MiniA Sample Project from Elektor’s “Arduino & Co.” Book Cloud-Based Energy MeterWith ESP32 Module and PZEM-004T Voltage/Current Sensor A Bare-Metal Programming Guide (Part 2)Accurate Timing, the UART, and Debugging Hexadoku

Read (+) (–)

Discover endless creativity with the Universal Maker Sensor Kit, designed for use with Raspberry Pi, Pico W, Arduino, and ESP32. This versatile kit offers compatibility across popular development platforms, including Arduino Uno R4 Minima/WiFi, Uno R3, Mega 2560, Raspberry Pi 5, 4, 3B+, 3B, Zero, Pico W, and ESP32. Featuring over 35 sensors, actuators, and displays, it's perfect for projects ranging from environmental monitoring and smart home automation to robotics and interactive gaming. Step-by-step tutorials in C/C++, Python, and MicroPython guide beginners and experienced makers alike through 169 exciting projects. Features Wide Compatibility: Fully supports Arduino (Uno R3, Uno R4 Minima/WiFi, Mega 2560), Raspberry Pi (5, 4, 3B+, 3B, Zero, Pico W), and ESP32, enabling extensive flexibility across numerous development platforms. Includes instructions for building 169 projects. Comprehensive Components: Features more than 35 sensors, actuators, and display modules suitable for diverse projects such as environmental monitoring, smart home automation, robotics, and interactive game controllers. Detailed Tutorials: Provides clear, step-by-step tutorials covering Arduino, Raspberry Pi, Pico W, ESP32, and each included component. Tutorials are available in C/C++, Python, and MicroPython, catering effectively to both beginners and experienced makers. Suitable for All Skill Levels: Offers structured projects designed to guide users seamlessly from beginner to advanced proficiency in electronics and programming, enhancing creativity and technical expertise. Included Breadboard Button Module Capacitive Soil Moisture Module Flame Sensor Module Gas/Smoke Sensor Module (MQ2) Gyroscope & Accelerometer Module (MPU6050) Hall Sensor Module Infrared Speed Sensor Module IR Obstacle Avoidance Sensor Module Joystick Module PCF8591 ADC DAC Converter Module Photoresistor Module PIR Motion Module (HC-SR501) Potentiometer Module Pulse Oximeter and Heart Rate Sensor Module (MAX30102) Raindrop Detection Module Real Time Clock Module (DS1302) Rotary Encoder Module Temperature Sensor Module (DS18B20) Temperature and Humidity Sensor Module (DHT11) Temperature, Humidity & Pressure Sensor (BMP280) Time of Flight Micro-LIDAR Distance Sensor (VL53L0X) Touch Sensor Module Ultrasonic Sensor Module (HC-SR04) Vibration Sensor Module (SW-420) Water Level Sensor Module I²C LCD 1602 OLED Display Module (SSD1306) RGB LED Module Traffic Light Module 5 V Relay Module Centrifugal Pump L9110 Motor Driver Module Passive Buzzer Module Servo Motor (SG90) TT Motor ESP8266 Module JDY-31 Bluetooth Module Power Supply Module Documentation Online Tutorial

Read (+) (–)