Search results for "elektor or ai or guest or edition or 2024 or fr"

Android Open Accessory (DE) | E-book

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39 Experiments with Raspberry Pi and Arduino This book is about Raspberry Pi 3 and Arduino camera projects. The book explains in simple terms and with tested and working example projects, how to configure and use a Raspberry Pi camera and USB based webcam in camera-based projects using a Raspberry Pi. Example projects are given to capture images, create timelapse photography, record video, use the camera and Raspberry Pi in security and surveillance applications, post images to Twitter, record wildlife, stream live video to YouTube, use a night camera, send pictures to smartphones, face and eye detection, colour and shape recognition, number plate recognition, barcode recognition and many more. Installation and use of popular image processing libraries and software including OpenCV, SimpleCV, and OpenALPR are explained in detail using a Raspberry Pi. The book also explains in detail how to use a camera on an Arduino development board to capture images and then save them on a microSD card. All projects given in this book have been fully tested and are working. Program listings for all Raspberry Pi and Arduino projects used in this book are available for download on the Elektor website.

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Aus dem Inhalt Lohnt sich der Selbstbau von Verstärkern noch? Warum HiFi-Geräte unterschiedlich klingen Elkos, Gleichrichter und ihr korrekter Einsatz PPP-Endstufe mit der Röhre EL 84 T Mittelwellen-Zweikreisempfänger 0-V-2-Kurzwellenaudion mit ECC 88 Kaffeewärmer mit Röhrenantrieb Vielseitige Experimentierplatinen Röhrensound-Konverter Mikrofonverstärker mit Röhren EL34, 6L6GC oder KT88 Magische Augen, Fächer und Bänder Kampf den Exemplarstreuungen Einfache Röhrenprüfung Kummer mit minderwertigen Röhren Das SRPP-Prinzip

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Grundlagen und Simulation mit Multisim Analoge Filterschaltungen bilden die schaltungstechnischen Grundlagen in der Elektronik, Messtechnik, Nachrichtentechnik, Computertechnik usw. Die Bauelemente Widerstand, Kondensator und Spule sind die Grundlagen der passiven Filtertechnik. Filter haben Einfluss auf die Signalamplitude, die Signalform (zeitlicher Verlauf) und Signallaufzeit (Signalverlauf). Mit diesen Voraussetzungen werden Zweipole, Vierpole, Hoch- und Tiefpässe behandelt. Daraus resultieren Frequenz- und Phasengang, Dämpfung, Bandpass, Bandsperre und Doppel-T-Filter. Der Operationsverstärker arbeitet als Verstärker in der aktiven Filtertechnik. Erklärt werden in diesem Buch auch aktive Hoch- und Tiefpassfilter der 1., 2., 3. und höherer Ordnung, Unterschiede zwischen Gauß-, Bessel-, Butterworth- und Tschebyscheff-Funktionen, aktive Bandpass- und Bandsperrfilter, Allpassfilter und Universalfilter. Dieses Buch basiert auf dem bekannten Programm Multisim und Spice. Damit lassen sich alle Versuche simulieren.

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Mikrocontroller 7 (PDF)

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Sensoren am Raspberry Pi (E-book)

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Aus dem Inhalt Kompakter High-End-Vollverstärker mit PCL 86 Schaltungen mit der neuen Röhre EL 84 T als echte Triode UKW Stereo-Empfänger in Hybrid-Technik Frequenzanzeige für UKW-Tuner mit Nixie-Röhren Kompaktes Labornetzteil zur Entwicklung von Röhrenschaltungen Symmetrix – Vollsymmetrische Endstufe für hochwertigen Hifi- und Studioeinsatz Hybridendstufe Röhrenkennlinien aufnehmen mit dem PC Röhrenvoltmeter

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Auf 100 Seiten finden Sie interessante und informative Themen zu Röhrentechnik. Unter anderem werden die nachfolgenden Fragen beantwortet: Wie verhalten sich Röhren in Gitarrenverstärkern? Welche Vorstufenröhre ist die richtige? Welchen Einfluss hat die Qualität des Vakuums? Sind Röhrenmikrofone noch immer das Maß aller Dinge? Bauprojekte sind u. a.: Mikrofonvorverstärker in Röhrentechnik Experimentiernetzteil für Röhren Federhall Wah-Wah HiFi-Endstufe für Einsteiger

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Learn how to use the ESP32 Microcontroller and MicroPython programming in your future projects! The project book, written by well-known Elektor author Dogan Ibrahim, holds many software- and hardware-based projects especially developed for the MakePython ESP32 Development Kit. The kit comes with several LEDs, sensors, and actuators. The kit will help you acquire the basic knowledge to create IoT projects. The book’s fully evaluated projects feature all the supplied components. Each project includes a block diagram, a circuit diagram, a full program listing, and a complete program description. Included in the kit 1x MakePython ESP32 development board with LCD 1x Ultrasonic ranging module 1x Temperature and humidity sensor 1x Buzzer module 1x DS18B20 module 1x Infrared module 1x Potentiometer 1x WS2812 module 1x Sound sensor 1x Vibration sensor 1x Photosensitive resistance module 1x Pulse sensor 1x Servo motor 1x USB cable 2x Button 2x Breadboard 45x Jumper wire 10x Resistor 330R 10x LED (Red) 10x LED (Green) 1x Project book (206 pages) 46 Projects in the Book LED Projects Blinking LED Flashing SOS Blinking LED – using a timer Alternately flashing LEDs Button control Changing the LED flashing rate using pushbutton interrupts Chasing-LEDs Binary-counting LEDs Christmas lights (random-flashing 8 LEDs) Electronic dice Lucky day of the week Pulsewidth Modulation (PWM) Projects Generate a 1000-Hz PWM waveform with 50% duty cycle LED brightness control Measuring the frequency and duty cycle of a PWM waveform Melody maker Simple electronic organ Servo motor control Servo motor DS18B20 thermometer Analog To Digital Converter (ADC) Projects Voltmeter Plotting the analog input voltage ESP32 internal temperature sensor Ohmmeter Photosensitive resistance module Digital To Analog Converter (DAC) Projects Generating fixed voltages Generating a sawtooth-wave signal Generating a triangular-wave signal Arbitrary periodic waveform Generating a sinewave signal Generating accurate sinewave signal using timer interrupts Using The OLED Display Seconds counter Event counter DS18B20 OLED based digital thermometer ON-OFF temperature controller Measuring the temperature and humidity Ultrasonic distance measurement Height of a person (stadiometer) Heart rate (pulse) measurement Other Sensors Supplied with the Kit Theft alarm Sound-activated light Infrared obstacle avoidance with buzzer WS2812 RGB LED ring Timestamping temperature and humidity readings Network Programming Wi-Fi scanner Remote control from the Internet browser (using a smartphone or PC) – Web Server Storing temperature and humidity data in the Cloud Low-Power Operation Using a timer to wake up the processor

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Una ricca selezione di articoli dal Mondo Elektor! Gli articoli di questo libro sono una selezione accurata, il "meglio del meglio" di circuiti e progetti recenti, realizzati da tecnici di grande talento provenienti da tutto il mondo. Nel tipico stile di Elektor, questa raccolta offre qualcosa di interessante per tutti, dai progettisti esperti a coloro che praticano l'elettronica nel tempo libero. Sommario Super Servo TesterProva Fino a Quattro Servocomandi, Stand-Alone o in Sistema The TubeUn Insolito Amplificatore a Valvole Cloc 2.0La Sveglia che Avete Sempre Desiderato Stazione Meteo LoRa Low-PowerCostruitevi una Stazione Meteorologica “Long Range” Uscita Video con Microcontrollori (Parte 1)Video Composito Uscita Video con Microcontrollori (Parte 2)Uscita VGA e DVI Un Raspberry Pi Pico come Analizzatore di SpettroFFT su Base Hardware a Basso Costo PIC O’Clock – In Contatto col TempoProgettare un Ricevitore di Segnali Orari SDR Frequenzimetro di Rete ACMisura Frequenza e Tensione della Rete Elettrica Generatore di Funzioni con Arduino NanoNano + Codice = Generatore di Funzioni Monitor CO2Un Approccio Fai-Da-Te per Il Controllo della Qualità dell‘Aria ChatMagLevLa Levitazione Magnetica con AI Alimentatore Lineare Variabile Combinato0…50 V / 0…2 A con Struttura Simmetrica Duale Ricevitore Digitale FM con Arduino e TEA5767Restate in Ascolto con un Arduino Nano Protezione Antigelo per Piante da FruttoCon Registrazione della Temperatura Carico Elettronico con Generatore di clock IntegratoPer Collaudare Alimentatori, Convertitori di Tensione e Batterie 128 Termostato Web con ESP32Mantieni il Vino alla Giusta Temperatura Iniezione di Segnali e di Potenza......per Rilevare le Interruzioni nei Cavi DIY LiPo Supercharger KitDal Prototipo al Mercato di Massa Livella Digitale con Stroboscopio AttivoCalibra il Tuo giradischi con Questo Strumento "Tutto-in-Uno" The Game of Life – 262.144 Modi di GiocareDal Progetto di un Lettore Rilevatore di PerditeCollegato ad Arduino Cloud Orologio di LissajousL’Incedere del Tempo con le Figure di Lissajous Mastermind – Controllato da ArduinoUna Versione Moderna del Classico Gioco di Decifrazione Generatore Audio Analogico 1 kHzOnda Sinusoidale a Bassa Distorsione Aggiorna il tuo Caricabatteria (Parte 1)Non Buttarlo, Modificalo! Aggiorna il tuo Caricabatteria (Parte 2)Non Buttarlo, Modificalo! Sistemi GNSS RTK a Basso CostoCon Accuratezza a Livello Centimetrico Esperimenti a 10 GHz con LNB Satellitari ModificatiSbloccare la Banda X a Basso Costo Telecamera per FerromodellismoInstalla un Modulo ESP32 CAM a Bordo! Monitor di Tensione con MicrocontrolloreProtezione dalla Scarica Profonda per Batterie e Altro Nodo Sensore AutonomoTrasmissione Dati LoRa con Alimentazione a Batterie Solari Layout e Sicurezza sul PCBConsigli per un Progetto Sicuro e Durevole

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35 projecten met Raspberry Pi en wireless Arduino Internet of Things (alles aan het internet) is een trend die zich niet meer laat keren. We willen alles in huis met onze mobiel of tablet doen, van Facebook tot TV kijken, van lichten bedienen tot de temperatuur in de gaten houden. In dit boek laten we in 35 leuke en handige projecten zien hoe u op eenvoudige wijze zelf een Internet of Things systeem kunt aanleggen. We gaan in op de hardware (de perfecte combinatie van Raspberry Pi en Arduino) en de software om bediening via internet mogelijk te maken. We maken gebruik van Wi-Fi en radioverbindingen zodat er geen kabels dwars door uw huis hoeven. Wanneer u deze projecten maakt heeft u een compleet Internet of Things systeem waarmee u van alles in uw huis kunt bedienen en bekijken. Bijvoorbeeld of er post in de brievenbus ligt en of de auto in de garage staat. U kunt op vanaf de bank het licht aandoen en het alarm bedienen. Door de heldere uitleg kunt u de projecten eenvoudig aanpassen om bijvoorbeeld uw koffiezetautomaat of tv op afstand aan te zetten. Via de index vindt u gemakkelijk creatieve projecten die als voorbeeld kunnen dienen, zodat u zelfstandig alles met het internet kunt verbinden.

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This book details the use of the Arduino Uno and the Raspberry Pi 4 in practical CAN bus based projects. Using either the Arduino Uno or the Raspberry Pi with off-the-shelf CAN bus interface modules considerably ease developing, debugging, and testing CAN bus based projects. This book is written for students, practicing engineers, enthusiasts, and for everyone else wanting to learn more about the CAN bus and its applications. The book assumes that the reader has some knowledge of basic electronics. Knowledge of the C and Python programming languages and programming the Arduino Uno using its IDE and Raspberry Pi will be useful, especially if the reader intends to develop microcontroller-based projects using the CAN bus. The book should be a useful source of reference material for anyone interested in finding answers to questions such as: What bus systems are available for the automotive industry? What are the principles of the CAN bus? How can I create a physical CAN bus? What types of frames (or data packets) are available in a CAN bus system? How can errors be detected in a CAN bus system and how dependable is a CAN bus system? What types of CAN bus controllers exist? How do I use the MCP2515 CAN bus controller? How do I create 2-node Arduino Uno-based CAN bus projects? How do I create 3-node Arduino Uno-based CAN bus projects? How do I set the acceptance masks and acceptance filters? How do I analyze data on the CAN bus? How do I create 2-node Raspberry Pi-based CAN bus projects? How do I create 3-node Raspberry Pi-based CAN bus projects?

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