Résultats de la recherche pour "elektor or septembre or octobre or 2023 or fr"

If you can describe it, you can build it AI coding assistants are changing what makers and solopreneurs can build. Tasks that once demanded weeks of learning a new language, framework, or software stack can now be delegated to an AI—provided you know how to describe the job, judge the result, and keep control of the process. The Maker’s Guide to AI Coding is a practical guide to doing exactly that. It explains how to work with AI coding tools as collaborators rather than vending machines, how much to delegate, how to write specifications that produce useful results, and how to recognise hallucinations, context drift, overconfidence, and code that runs but is still wrong. The book is built around four increasingly ambitious projects. You begin with a browser-based RC filter analyser, then develop a live serial data plotter for Arduino and other microcontrollers. Next comes a datasheet questionand- answer tool using retrieval-augmented generation (RAG), followed by a complete multi-user resource booking system with authentication, a database, external services, background jobs, and deployment. No advanced programming background is required. The emphasis is on thinking clearly, guiding the AI, testing what it produces, and preserving the skills needed to evaluate its work. Along the way, you learn development workflow designed to remain useful as tools evolve. If you can describe what you want to build, this book shows you how to turn that description into working software.

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De ESP8266 van Espressif is een Wi-Fi microchip met volledige TCP/IP stack en functionaliteit van een microcontroller. Het heeft indruk gemaakt in de maker community met zijn lage prijs. Maar veel ontwikkelaars waren ontevreden over het hoge stroomverbruik van de ESP8266. De ESP32, uitgerust met een ULP (Ultra Low Power) coprocessor, biedt hiervoor een oplossing. Dit e-book bevat een aantal projecten met ESP32 & ESP8266 en een interview met de CEO Teo Swee Ann van Espressif. Artikelen Lichtkrant met ESP-12F, 512 LED’s via WiFi aansturen VFD-klok met ESP32, met nauwkeurige internettijd Zuinige ESP32, de programmering van de ULP-coprocessor DCF77-emulator met ESP8266, internettijd vervangt draadloze tijd WiFi desktop-thermostaat, flexibele en programmeerbare temperatuurregeling Timers voor de WiFi desktop-thermostaat, zeven kanalen met atoomprecisie Zwitsers zakmes voor microcontrollers, PlatformIO als universeel programmeertool ESP8266 USB-programmeer-adapter voor de Espressif-modules ESP-01 en ESP-012 De ESP8266 op het Android I/O-board, zelf nieuwe firmware flashen Weerdisplay, actuele weersinformatie op een kleuren-LCD GoNotify, een flexibele IoT sensor-interface. Join the bubble! CV-monitor met ESP8266, domotica voor de overgang naar duurzame energie MicroPython en het pyboard, van een knipperende LED naar … een knipperende LED aan een webserver De grote broer van de ESP8266, de eerste stappen met de ESP32 en de Arduino-IDE RGBDigit klok, een kleurrijk 7-segment-display voor uw data WLAN voor microcontrollers, besturen met de ESP8266 De terugkeer van de Wi-Fi-besturingskaart, apparatuur bedienen met uw smartphone Compact en autonoom WLAN, handig gebruik van de ESP8266 zonder MCU

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If you can describe it, you can build it AI coding assistants are changing what makers and solopreneurs can build. Tasks that once demanded weeks of learning a new language, framework, or software stack can now be delegated to an AI—provided you know how to describe the job, judge the result, and keep control of the process. The Maker’s Guide to AI Coding is a practical guide to doing exactly that. It explains how to work with AI coding tools as collaborators rather than vending machines, how much to delegate, how to write specifications that produce useful results, and how to recognise hallucinations, context drift, overconfidence, and code that runs but is still wrong. The book is built around four increasingly ambitious projects. You begin with a browser-based RC filter analyser, then develop a live serial data plotter for Arduino and other microcontrollers. Next comes a datasheet questionand- answer tool using retrieval-augmented generation (RAG), followed by a complete multi-user resource booking system with authentication, a database, external services, background jobs, and deployment. No advanced programming background is required. The emphasis is on thinking clearly, guiding the AI, testing what it produces, and preserving the skills needed to evaluate its work. Along the way, you learn development workflow designed to remain useful as tools evolve. If you can describe what you want to build, this book shows you how to turn that description into working software.

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All you need to know about good acoustics and sound systems in performance and worship spaces! Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results. A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform. This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.

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Aus dem Inhalt Lieferbarkeit von Röhren Passive Übeltäter – Einfluss der Kondensatoren auf den Klang Übertragerwissen Theorie der Trioden Der richtige Einsatz von Gleichrichterröhren Line-Vorverstärker mit Klangsteller Vollverstärker mit 2 x 50 W oder 2 x 40 W HiFi-CD-Player mit Playstation 1 CD-Filter Nachlese In dem Artikel "Moderne Triodenendstufe mit der legendären 2A3" ab Seite 66 wurden bei den Platinenabbildungen die Maßangaben nicht abgedruckt. Hier die Maße der Originalgrößen: Netzteilplatine (S. 68) 123 x 80 mm Stabilisierung (S. 69) 70 x 85 mm Hauptplatine (S. 71) 295 x 135 mm

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Make your project dreams come true: an odometer for the hamster wheel, a fully automatic control of your ant farm with web interface, or the Sandwich-O-Mat – a machine that toasts and grills sandwiches of your choice. With the Arduino and the DIY or Maker movement, not only did entry into microcontroller programming become child's play, but a second development also took place: Resourceful developers brought small boards – so-called shields or modules – to the market, which greatly simplified the use of additional hardware. The small modules contain all the important electronic parts to be connected to the microcontroller with a few plug-in cables, eliminating the need for a fiddly and time-consuming assembly on the plug-in board. In addition, it is also possible to handle tiny components that do not have any connecting legs (so-called SMDs). Projects Discussed Arduino seeks connection BMP and introduction to libraries, I²C Learn I/O basics with the multi-purpose shield I²C LCD adapter and DOT matrix displays LCD keypad shield Level converter W5100: Internet connection I/O expansion shield Relays and solid-state relays The multi-function shield: A universal control unit Connecting an SD card reader via SPI Keys and 7-segment displays 16-bit ADC MCP4725 DAC 16-way PWM servo driver MP3 player GPS data logger using an SD card Touch sensor Joystick SHT31: Temperature and humidity VEML6070 UV-A sensor VL53L0X time-of-flight Ultrasonic distance meter MAX7219-based LED DOT matrix display DS3231 RTC Port expander MCP23017 433 MHz radio MPU-650 gyroscope ADXL345 accelerometer WS2812 RGB LEDs Power supply MQ-xx gas sensors CO2 gas sensor ACS712 current sensor INA219 current sensor L298 motor driver MFRC522 RFID 28BYJ-48 stepper motor TMC2209 silent step stick X9C10x digital potentiometer ST7735 in a color TFT display e-Paper display Bluetooth Geiger counter SIM800L GSM module I²C multiplexer Controller Area Network

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Accroche-regard basé sur Raspberry Pi Une horloge à sable standard ne fait qu'indiquer le temps qui passe. En revanche, cette horloge à sable contrôlée par le Raspberry Pi Pico indique l'heure exacte en 'gravant' les quatre chiffres de l'heure et des minutes dans la couche de sable. Après un temps réglable, le sable est aplati par deux moteurs vibrants et tout recommence. Au cœur de l'horloge de sable se trouvent deux servomoteurs qui entraînent un stylo dans un mécanisme de pantographe. Un troisième servomoteur soulève le stylo de haut en bas. Le bac à sable est équipé de deux moteurs vibrants qui aplatissent le sable. La partie électronique de l'horloge des sables se compose d'un Raspberry Pi Pico et d'une carte RTC/driver avec une horloge en temps réel, ainsi que des circuits de commande pour les servomoteurs. Un manuel de construction détaillé peut être téléchargé. Caractéristiques Dimensions: 135 x 110 x 80 mm Temps de construction : environ. 1,5 à 2 heures Inclus 3x Feuilles acryliques prédécoupées avec toutes les pièces mécaniques 3x Mini servomoteurs 2x moteurs de vibration 1x Raspberry Pi Pico 1x Carte RTC/pilote avec les pièces assemblées Ecrous, boulons, entretoises et fils pour l'assemblage Sable blanc à grains fins

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Die Kurzwellentechnik übt einen ganz besonderen Reiz aus. Man kann mit geringstem Aufwand große Entfernungen überbrücken. Durch Reflexion an leitenden Schichten der Ionosphäre und am Boden werden Kurzwellensignale auch an Orten jenseits des Horizonts hörbar. So lässt sich jeder Ort auf der Erde erreichen. Zwar strebt die Technik nach immer höheren Frequenzen, und Radio hört man meist auf UKW, über DAB+, über Satellit oder das Internet. Aber alle diese moderneren Übertragungswege benötigen eine umfangreiche Infrastruktur und sind extrem verletzlich. Im Falle eines globalen Stromausfalls geht nichts mehr außer auf der Kurzwelle. Deshalb wird im Amateurfunk nicht nur ein Hobby gepflegt, sondern auch ein Notfunksystem aufrechterhalten. Das Elektor SDR-Shield ist ein vielseitiger Kurzwellenempfänger bis 30 MHz. Zusammen mit einem Arduino-Board und der passenden Software lassen sich nicht nur Rundfunkstationen empfangen, sondern auch Morsesignale, SSB-Stationen und digitale Signale. Der Erfolgsautor und begeisterter Amateurfunker Burkhard Kainka beschreibt im vorliegenden Buch die moderne Praxis des Software Defined Radios mithilfe des Elektor SDR-Shields. Dabei vermittelt er nicht nur den theoretischen Background, sondern erklärt auch zahlreiche Software-Werkzeuge aus dem Open-Source-Bereich, die heute die Kurzwellentechnik zu einem absolut spannenden und hochmodernen Hobby machen.

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Elektronik-Grundlagen und Einsteiger-Projekte (livre électronique)

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311 Circuits is the twelfth book in Elektor’s celebrated ‘300’ series. An immense source of inspiration for all electronics enthusiasts and professionals, this book deserves a place not far from the workbench. This book contains circuits, design ideas, tips and tricks from all areas of electronics: audio & video, computers & microcontrollers, radio, hobby & modelling, home & garden, power supplies & batteries, test & measurement, software, not forgetting a section ‘miscellaneous’ for everything that doesn’t fit in one of the other categories. 311 Circuits presents complete solutions for numerous problems, as well as starting points for your own creations. 311 Circuits has been compiled from the 2009, 2010 and 2011 ‘Summer Circuits’ double editions of Elektor magazine. The book is mostly based on readers’ contributions, supplemented by circuits engineered and developed in the Elektor Labs.

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L'adaptateur milliohmmètre Elektor utilise la précision d'un multimètre pour mesurer des valeurs de résistance très faibles. Il convertit une résistance en tension mesurable avec un multimètre standard. L'adaptateur milliohmmètre Elektor permet de mesurer des résistances inférieures à 1 mΩ grâce à la méthode 4 fils (Kelvin). Il est utile pour localiser les courts-circuits sur les circuits imprimés. L'adaptateur dispose de trois plages de mesure : 1 mΩ, 10 mΩ et 100 mΩ, sélectionnables via un interrupteur à glissière. Il intègre également des résistances d'étalonnage. L'adaptateur milliohmmètre Elektor est alimenté par trois piles AA de 1,5 V (non fournies). Spécifications Gammes de mesure 1 mΩ, 10 mΩ, 100 mΩ, 0,1% Alimentation 3x piles AA 1,5 V (non fournies) Dimensions 103 x 66 x 18 mm (compatible avec le boîtier de type Hammond 1593N, non fourni) Spécificité Résistances d'étalonnage intégrées Téléchargements Documentation

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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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