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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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This book is about teaching the Python programming language using the Raspberry Pi 4 computer. The book makes an introduction to Raspberry Pi 4 and then teaches Python with the topics: variables, strings, arrays, matrices, tuples, lists, dictionaries, user functions, flow of control, printing, keyboard input, graphics, GUI, object oriented programming and many more topics. The book is aimed for beginners, students, practising engineers, hobbyists, and for anyone else who may want to learn to program in Python. The book includes many example programs and case studies. All the example programs and case studies have been tested fully by the author and are all working. The example programs aim to teach the various programming concepts of Python. The case studies cover the use of Python in the analysis and design of electronic circuits. Some of the case study topics are: Resistor colour code identification Resistive potential divider circuits Resistive attenuator design Zener diode voltage regulator design RC and RLC transient circuits Circuit frequency response Saving data on external memory stick Mesh and node circuit analysis using matrices Resonance in RLC circuits Transistor Biasing analysis Transistor amplifier design Design of active filters Interfacing hardware with GPIO, I²C and SPI Using Wi-Fi with Python and TCP/IP and UDP programs Using Bluetooth from Python Full program listings of all the programs used in the book are available at the Elektor website of the book. Readers should be able just to copy and use these programs in their Raspberry Pi projects without any modifications.

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Le téléchargement intégral de ce numéro est disponible pour nos membres GOLD et GREEN sur le site Elektor Magazine ! Pas encore membre ? Cliquez ici. carte émetteur-récepteur audio ESP32 (2)Transmission audio sans fil émetteur AM par inductionUtiliser les PIO du Pico dans un croquis Arduino les protocoles sans filUn guide technique suivi de satellites avec LoRaTinyGS, le réseau open source qui capte les données spatiales télécommande par sms compatible 4GContrôlez votre équipement à distance sonde haute vitesseMesure à haute impédance jusqu’à 200 MHz sur le vifKafka KrakenSDR tests de performance avec le RP2350Pico 2 : une vraie amélioration ? mesures de champ électrique sans contact (2)Un vibromètre laser pour l’analyse des vibrations de la membrane quartz et oscillateursAméliorer la précision des quartz grâce au choix des condensateurs démarrer en électroniqueCI audio originaux se lancer dans le codage d'un projet DIY SPECTRAN® V6 MobileAnalyseur de spectre temps réel modulaire et configurable pour des mesures fiables sur l’ensemble des plages de fréquences l’avenir de l’IA repose sur le siliciumEntretien avec Anastasiia Nosova nœud de capteurs autonome v2.0 (architecture du système)Plateforme de mesure autonome alimentée par énergie solaire, avec GPS intégré, LoRaWAN et plus encore positionnement précisTests du sondage de canal Bluetooth développement logiciel piloté par les tests voiture miniature contrôlée par SmartphoneWi-Fi + ESP32 + Smartphone = contrôle à distance 2025 : une odyssée de l’IAModèles de raisonnement en IA : la révolution de la chaîne de pensée contrôleur de charge solaire avec MPPT (3)Logiciel et mise en service caméra Web Raspberry Pi ZeroStreaming avec VPN ZeroTier

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For Raspberry Pi, ESP32 and nRF52 with Python, Arduino and Zephyr Bluetooth Low Energy (BLE) radio chips are ubiquitous from Raspberry Pi to light bulbs. BLE is an elaborate technology with a comprehensive specification, but the basics are quite accessible. A progressive and systematic approach will lead you far in mastering this wireless communication technique, which is essential for working in low power scenarios. In this book, you’ll learn how to: Discover BLE devices in the neighborhood by listening to their advertisements. Create your own BLE devices advertising data. Connect to BLE devices such as heart rate monitors and proximity reporters. Create secure connections to BLE devices with encryption and authentication. Understand BLE service and profile specifications and implement them. Reverse engineer a BLE device with a proprietary implementation and control it with your own software. Make your BLE devices use as little power as possible. This book shows you the ropes of BLE programming with Python and the Bleak library on a Raspberry Pi or PC, with C++ and NimBLE-Arduino on Espressif’s ESP32 development boards, and with C on one of the development boards supported by the Zephyr real-time operating system, such as Nordic Semiconductor's nRF52 boards. Starting with a very little amount of theory, you’ll develop code right from the beginning. After you’ve completed this book, you’ll know enough to create your own BLE applications.

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35 Projekte mit Raspberry Pi und Arduino Das Internet of Things (Internet der Dinge) ist eine unumkehrbare Entwicklung. Wir möchten gerne alles im Haus mit unserem Smartphone oder Tablet erledigen – von Facebook bis Fernsehen, Lampen steuern oder die Heizungstemperatur einstellen. In diesem Buch stellen wir 35 interessante und nützliche Projekte vor, die demonstrieren, wie Sie selbst ein Internet-of-Things-System anlegen können. Wir gehen auf die Hardware ein, einer perfekten Symbiose von Raspberry Pi und Arduino, und entwickeln die Software, die eine Steuerung über das Internet verwirklicht. Wir setzen dabei WLAN- und Funkverbindungen ein und vermeiden so einen Kabelsalat im Haus. Wenn Sie die Projekte aufbauen, verfügen Sie über ein vollständiges Internet-of-Things-System, mit dem Sie alles im Haus bedienen, steuern und überwachen können, zum Beispiel ob Post im Briefkasten steckt oder das Auto in der Garage steht. Sie können bequem vom Sofa aus das Licht einschalten oder die Alarmanlage aktivieren/deaktivieren. Durch die ausführlichen Erläuterungen wird es Ihnen ein Leichtes sein, Projekte anzupassen, um zum Beispiel die Kaffeemaschine oder das Fernsehgerät aus der Ferne ein- und auszuschalten. Über den Index finden Sie leicht kreative Projekte, die Ihnen als Ausgangspunkt für eigene Entwicklungen dienen können, mit denen Sie selber alles, was Sie wollen, mit dem Internet verbinden können.

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Mein eigener RISC-V-ControllerErste Schritte mit dem NEORV32 RISC-V Softcore für preiswerte FPGAs Wie man den Seriellen Plotter der Arduino-IDE nutztEinfaches Plotten von Kurven mit Arduino CLUE - ein Clou von Adafruit?Angriff auf den micro:bit Puffer-Board für den Raspberry Pi 400Schützen Sie die I/Os! FrühjahrskollektionInteressante Raspberry Pi RP2040 Boards Ein DIY-Handbuch zu elektronischer Sicherheit und E-SpionageSRAM erhitzt oder tiefgefroren Identifizierung von BauteilenTipps & Tricks, Best Practices und andere nützliche Informationen Ein Touch-Schalter ohne TouchKonzeption und Umsetzung eines berührungslosen Lichtschalters Aller Anfang...ist gar nicht schwer: Anpassen und Transformieren Was gibt's Neues in der Embedded-Entwicklung?Rust und die Aktualisierung von IoT-Implementierungen Infografiken Elektor Industry Neue Wege für Industrie und Automobilbranche mit 5G DrehspulrelaisBemerkenswerte Bauteile Zutritt für Unbefugte verbotenAlles dreht sich um die Werkzeuge... Die Neuronen in neuronalen Netzen verstehenTeil 4: Eingebettete Neuronen Magnetische Levitation auf die sehr sehr einfache ArtDie dritte und kompakteste Version SPS-Programmierung mit dem Raspberry Pi und dem OpenPLC-ProjektVisualisierung von SPS-Programmen mit AdvancedHMI Aus dem Leben gegriffenEinpacken und weg damit Unter dem RadarUnbekannte Mikrocontroller, über die Sie Bescheid wissen sollten Drahtloses Monitoring und DebuggenSerielle Funk-Schnittstelle für Arduino, ESP32 und Co. Tragbares Temperatur- und FeuchtemessgerätGebaut mit vorgefertigten Modulen Lithium-Akkus reparierenGeld sparen + mehr Power! GUIs mit PythonMeme-Generator Die drei FragezeichenWarum? Was? Wer? Hexadoku

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From Simple Ciphers to Secure Systems Understanding how to apply cryptography on modern microcontrollers is essential for building secure, reliable, and trustworthy systems. This book explains cryptography in the context of embedded hardware, from classical ciphers that illustrate core principles to modern techniques such as AES for practical high-security applications. By combining mathematical theory with real-world microcontroller implementations, readers learn not only how cryptography works, but also how to implement it effectively on systems with limited processing power and memory. The book is intended for students starting out in cryptography, hobbyists securing personal projects, and engineers looking for a structured guide to embedded security. The book covers these key topics in applied cryptography: Classical ciphers on Arduino Uno and Raspberry Pi Pico, with full programs: Spartan Scytale, Hebrew Atbash, Caesar, ROT13, Alberti Disk, Vigenère, Affine, Polybius, Playfair, Beaufort, Ottoman Codebook, and One-Time Pad. Hacking classical ciphers using microcontrollers, with examples. Pseudo-random (PRNG) and true random number generation (TRNG) on microcontrollers. Symmetric-key cryptography with full programs: DES and AES-128/256. Memory and speed constraints of cryptography on microcontrollers. Asymmetric cryptography: public/private keys, digital signatures, key distribution and derivation (KDF), RSA, and SHA-256 implementations. A complete secure communication program using RSA and AES-256. A glossary of commonly used cryptography terms.

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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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The Elektor LoRa NodeVersatile, long-range, 868-MHz remote control with state feedback and STM32 Inside InteractiveCorrections & Updates || Questions & Answers Analogue Electronics DesignCase Study #1 — Section 2: Preamplifier optimized for MEMS microphone My IoT Button: A Button for the WebPart 1: IoT architecture BASIC for the ESP32 and ESP8266Programming with Annex WiFi RDS ESP32 Doorbell via Telegram“The UPS Man Always Rings Once” Small Circuits RevivalCapita Selecta from the Elektor Project Suggestions Box My First LoRaWANWith Blue Pill, LoRa Breakout Board and The Things Network Elektor Connexions 2003EL “A Strong Supporter of Open Internet”Interview with Wienke Giezeman, Initiator of The Things Network The Meadow F7 BoardA great board for .NET developers Practical ESP32 Multitasking (2)Task priorities Sigfox and the IoT (3)First steps on the network Raspberry Pi Bash Command Cheat Sheet Europe's Most Successful Start-up Accelerator?HighTechXL, Eindhoven, The Netherlands Review: The Enviro+ RPi-HATMeasure air quality with a Raspberry Pi and the Enviro+ HAT Steeped in Electronicsordering components from Ukraine and Russia Review: Andonstar AD407Better than its predecessor? Lab, Sweet LabA glimpse of The Holy Place — no unauthorized entry. Optical Probe for OscilloscopesMeasure brightness fluctuations of lighting systems The 'TABULA' Project - An UpdateTangibles with user feedback How-To Calculate the Prospective Short-Circuit Current or PSCCand choose the proper circuit breaker TMS1000 Series Microcontrollers Peculiar Parts, the series Starting Out in Electronics (2) Easier than imagined! Developer's ZoneTips & Tricks, Best Practices and Other Useful Information Locating Wayward Wires Track and trace concealed and defective cables with ease and certainty Review: Joy-IT DMSO2D72 Portable 3-in-1 Oscilloscope Homebrew PC for the Electronics LabTips on Component Choice and Construction The Elektor ‘Intelekt’ Chess Computer (1981)Tiny Chess 86 ported to the Intel 8088 Beyond ElectronicsPCB Art - Pushing the Limits of Industrial Manufacturing

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Secure, Modular, Open-Source and Self-Sufficient Ever since the Raspberry Pi was introduced, it has been used by enthusiasts to automate their homes. The Raspberry Pi is a powerful computer in a small package, with lots of interfacing options to control various devices. This book shows you how you can automate your home with a Raspberry Pi. You’ll learn how to use various wireless protocols for home automation, such as Bluetooth, 433.92 MHz radio waves, Z-Wave, and Zigbee. Soon you’ll automate your home with Python, Node-RED, and Home Assistant, and you’ll even be able to speak to your home automation system. All this is done securely, with a modular system, completely open-source, without relying on third-party services. You’re in control of your home, and no one else. At the end of this book, you can install and configure your Raspberry Pi as a highly flexible home automation gateway for protocols of your choice, and link various services with MQTT to make it your own system. This DIY (do it yourself) approach is a bit more laborious than just installing an off-the-shelf home automation system, but in the process, you can learn a lot, and in the end, you know exactly what’s running your house and how to tweak it. This is why you were interested in the Raspberry Pi in the first place, right? Turn your Raspberry Pi into a reliable gateway for various home automation protocols. Make your home automation setup reproducible with Docker Compose. Secure all your network communication with TLS. Create a video surveillance system for your home. Automate your home with Python, Node-RED, Home Assistant and AppDaemon. Securely access your home automation dashboard from remote locations. Use fully offline voice commands in your own language. Download the software and view the errata for the book on GitHub.

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Measuring Does Not Have to be Expensive Low-Cost Audio TesterUsing PC-Based Software and a USB Audio Interface AC Grid Frequency MeterMonitor Mains Frequency and Voltage A Modest Inductance MeterAn Affordable Solution for Your Workbench Acoustic Wave HoveringA Look at the Makerfabs Acoustic Levitation Kit Starting Out in ElectronicsRectifiers E-FFWD: Looking Ahead Again! Get Started With Your OscilloscopeFind Your Way Through the Knobs and Buttons Raspberry Pi Pico Makes an MSF-SDRDecode a Time Signal with a Pi Pico SDR Moisture Sensors for Watering SystemsAutomatic Watering Disruption in Test and Measurement EquipmentInnovation from the Smaller Players Infographics 7-8/2022 Inspiration, That’s What It’s All AboutInterview with Entrepreneur Walter Arkesteijn, InnoFaith Beauty Sciences Minimizing EMC Interference from Storage Chokes GUIs with Python (Part 5)Tic-Tac-Toe Reed RelaysPeculiar Parts, the series Simple Analog ESR Meter With Moving-Coil Meter Precision Sigfox CO2 Traffic LightNo Wi-Fi Network Needed! Women in Tech“It's All About Merit Until Merit Has Tits” Low-Budget Tablet Oscilloscope ADS1013DGood Value for Money? Smart Plug TeardownWhich Ones Are Hacker-Friendly? Skin Impedance and Skin CapacitanceSmall Experiments From Life’s ExperienceNo Local Business Pokit Meter ReviewA Swiss army knife of test gear HexadokuThe Original Elektorized Sudoku

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Le téléchargement intégral de ce numéro est disponible pour nos membres GOLD et GREEN sur le site Elektor Magazine ! Pas encore membre ? Cliquez ici. Le haut de gamme au c?ur du labo Elektor Amplificateur haut de gamme Fortissimo-100Étage de sortie audio entièrement symétrique avec 100/190 W Vérification de la fréquence des quartz et des circuits accordésAstuces, bonnes pratiques et autres informations utiles trucs et astuces pour circuits imprimés souder - et alors??un regard approfondi sur la technologie de soudage moderne commande de porte de garage par Bluetooth à réponse rapideOuvrez votre porte avec votre smartphone contrôleur de diode idéalecircuits à diodes à faible dissipation de puissance guirlandes de LED avec ESP32 et FreeRTOSclignotantes et scintillantes démarrer en électronique...avec plaisir, on continue avec les Zener récepteur FM/DAB+le meilleur des deux mondes sur le vifElectronica Obscura procédé sans fil de débogage de micrologicielsTampon circulaire et serveur web sur l?ESP32 Le COVID-19 a-t-il donné un coup de fouet à l?innovation en ingénierie ?Composants et solutions innovants de 2022 Ersa i-CON TRACE ? la station de soudage connectée pour professionnels Infographiques qu?allons-nous faire de toute cette informatique ? Comment piloter l?afficheur E-Paper d?Ynvisible innovation de tous les instants chez InnoFaithentretien avec Walter Arkesteijn automatisation industriellerétrofit IdO facile et évolutif Qt pour le Raspberry Piguide pas à pas pour la configuration du framework d'interface graphique utilisateur Les connecteurs linéaires ultra-plats facilitent la gestion de données multi-signaux intelligents - innovants - rentablesles FPGA GateMate conçus et fabriqués en Allemagne des outils pour soutenir le développement de capteurs à faible coût fusible réarmable CTPdrôle de composant, la série Sortie analogique isolée pour Arduino Uno visite à domicile? Découvre le Thérémine electronica fast forward 2022 ? une initiative d?Elektoréquipe et calendrier radiogoniométrieretrouver les capteurs météo sans fil égarés estimer le bruit interne d?un circuit intégréméthode simple Questions d?éthiqueInitié par le WEEF Éthique et profit, un mariage de raisonEntretien avec le professeur Stefan Heinemann l?index WEEF 2023 logiciel de calcul de filtresOutils de conception de filtres analogiques Éteins-moi cette télé !avec TV-B-Gone Mesure de la qualité de l?air avec le RP2040 elekterminal Initiation à Python 3extrait du chapitre : bibliothèque Wand et traitement numérique des images SOLARPUNKun avenir prometteur Hexadoku

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