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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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Vos premiers pas avec l'ESP32-C3 et l'IdOBouton Wi-Fi + relais Wi-FiCloud IdO à la sauce ArduinoDétecteur Geiger-Müller à double tube (extension pour Arduino)Capteur très sensible pour très faible rayonnementDétecteur de CO2 : CO2 GuardUne solution « maison » pour surveiller la qualité de l'airKit de mesure de la qualité de l'air pour Raspberry Pi de MonkMakesMesure de température et de CO2eDémarrer en électronique... (13)Entrée en scène de la diodeTrucs et astuces pour tester les composantsSans appareils de test coûteuxRéduction de la consommation d'énergie de votre repousse-taupesGrâce au remplacement du 555 par un ATtiny13Interrupteur crépusculaire DeLuxUne solution pour une commutation de haute précision, commandée par la lumièreLes défis de la commercialisation des solutions IdOProblématiques de sécurité, d'évolutivité et de concurrenceElektor infographieIoT : le nouveau Graal ?« Je préfère quand même être en filaire »Conseils pour développer une interface 1 Gbit/s dans un environnement industrielLa détection d'objets en temps réel pour les microcontrôleurs grâce à Edge Impulse FOMOTubes à ondes progressivesPeculiar Parts, the SeriesNB-IoTNormes, couvertures, conventions et modulesPasserelle intérieure Dragino LPS8Configuration rapide de la passerelle LoRaWANExplorer les microcontrôleurs ATtiny en utilisant le langage C et le langage assembleurExtrait : Ports d'E/S d'ATtinyÉlectronique interactive : projet 2.0Corrections, mises à jour et courriers des lecteursMise à jour de la balise GPS LoRaRecevoir et afficher la localisation à l'aide d'un Raspberry PiSimulation de circuits avec TINA Design Suite & TINACloudExtrait : oscillateurs sinusoïdauxSur le vifFaçon de pincerInfrastructure graphique WinUI pour les applications WindowsApplication de démonstrationCréation d'interfaces graphiques en Python avec guizeroLa pire des interfacesSystèmes solaires autonomesProduction d'électricité indépendante du réseau10 ans avec le même smartphone ?Et si c'était possible !Hexadoku

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Program and Build Raspberry Pi 5 Based Ham Station Utilities with the RTL-SDR The RTL-SDR devices (V3 and V4) have gained popularity among radio amateurs because of their very low cost and rich features. A basic system may consist of a USB based RTL-SDR device (dongle) with a suitable antenna, a Raspberry Pi 5 computer, a USB based external audio input-output adapter, and software installed on the Raspberry Pi 5 computer. With such a modest setup, it is possible to receive signals from around 24 MHz to over 1.7 GHz. This book is aimed at amateur radio enthusiasts and electronic engineering students, as well as at anyone interested in learning to use the Raspberry Pi 5 to build electronic projects. The book is suitable for both beginners through experienced readers. Some knowledge of the Python programming language is required to understand and eventually modify the projects given in the book. A block diagram, a circuit diagram, and a complete Python program listing is given for each project, alongside a comprehensive description. The following popular RTL-SDR programs are discussed in detail, aided by step-by-step installation guides for practical use on a Raspberry Pi 5: SimpleFM GQRX SDR++ CubicSDR RTL-SDR Server Dump1090 FLDIGI Quick RTL_433 aldo xcwcp GPredict TWCLOCK CQRLOG klog Morse2Ascii PyQSO Welle.io Ham Clock CHIRP xastir qsstv flrig XyGrib FreeDV Qtel (EchoLink) XDX (DX-Cluster) WSJT-X The application of the Python programming language on the latest Raspberry Pi 5 platform precludes the use of the programs in the book from working on older versions of Raspberry Pi computers.

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Projekte mit Arduino Uno und Raspberry Pi In diesem Buch werden Anwendungen von Arduino Uno und Raspberry Pi 4 in praxisnahen Projekten auf Basis von CAN-Bus detailliert beschrieben. Durch den Einsatz von entweder Arduino Uno oder Raspberry Pi in Verbindung mit handelsüblichen CAN-Bus-Schnittstellenmodulen werden die Entwicklung, Fehlersuche und Fehlerbeseitigung sowie die Überprüfung von Projekten auf CAN-Bus-Basis erheblich erleichtert. Dieses Buch richtet sich an jeden, der mehr über den CAN-Bus lernen möchte und mit den Grundlagen der Elektronik vertraut ist. Hilfreich ist auch Erfahrung mit den Programmiersprachen C und Python sowie mit der Programmierung von Arduino Uno unter Verwendung seiner IDE und von Raspberry Pi zu haben. Das Buch ist eine nützliche Informationsquelle und ein Nachschlagewerk für jeden, der Antworten auf eine oder mehrere der folgenden Fragen sucht: Welche Bussysteme stehen für die Automobilindustrie zur Verfügung? Was sind die Grundprinzipien des CAN-Bus? Welche Arten von Frames (oder Datenpaketen) stehen in einem CAN-Bussystem zur Verfügung? Wie können Fehler in einem CAN-Bussystem erkannt werden, und wie zuverlässig ist ein CAN-Bussystem? Welche Arten von CAN-Bus-Controllern gibt es? Welches sind die Funktionsprinzipien des MCP2515 CAN-Bus-Controllers? Wie kann ich ein CAN-Bus-Projekt mit Arduino Uno realisieren? Wie kann ich Arduino oder Raspberry Pi CAN-Bus-Projekte mit 2 und 3 Knoten erstellen? Wie kann ich die Daten auf dem CAN-Bus analysieren? Wie kann ich ein CAN-Bus-Projekt mit Raspberry Pi ausführen?

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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. adaptateur de mesure USBTest du courant et des signaux des ports USB sortie boucle de courant 4-20 mA pour Arduino UnoUne interface de boucle de courant fiable et insensible aux interférences électromagnétiques commande automatique pour aspirateurGardez votre établi propre générateur DDS avec ATtiny testeur d'ampli-op V2Nouveau circuit imprimé – désormais compatible avec les CMS amplificateur audio à tube 550 mWson chaleureux des tubes à vide surveillance des fusiblesavec une LED clignotante préamplificateur RIAA HQExploitez tout le potentiel sonore de vos disques vinyles ! Outil de réglage pour platines vinylesGénérateur de lumière stroboscopique 100–120 Hz basé sur Arduino Elektor Classics : ampli vidéo gradateur à télécommande infrarougeContrôlez votre éclairage avec confort et précision comment utiliser switch…case avec des chaînes de caractères en C++/EDI Arduino détecteur d’aimantsAvec un simple capteur à effet Hall bouton de mise sous tension intelligent pour Raspberry PiUne solution pour Raspberry Pi jusqu’au modèle 4 astuces clés pour makersDes conseils pros pour vos projets projets pratiques avec le timer 555Commande de moteur CC et jeux de rapidité moniteur de charge CA simpleÉconomisez de l'énergie grâce à un appareil simple batteries externes en parallèleTrois jours d’autonomie VFO jusqu’à 15 MHzRéalisation avec un Raspberry Pi Pico accordeur de violon avec ATtiny202 Elektor Classics : ampli vidéo pour TV N&B capacimètre20 pF à 600 nF horloge quasi analogique Mk IIDeux anneaux LED pour les heures et les minutes concevez sans limites(grâce à l’écosystème complet d’Arduino) dé à lampes néon Elektor Classics : indicateur d'accord RTTY solutions matérielles inspirantes pour vos projets ESP Elektor Classics : alimentation 3 A LED RGB avec circuit de commande intégréLumière de précision : les ICLED établissent de nouvelles normes expérience : un Thérémine analogico-numérique ?Combiner des capteurs numériques modernes avec l’intemporel générateur analogique XR2206 carte émetteur-récepteur audio ESP32 (1)Démo : lecture de fichiers WAV depuis une carte SD infographies : Circuits et conception de circuits 2025 petit mixeur audioUne conception polyvalente et modulable minuteur intelligent pour éclairage d’escalierÉconomisez encore plus sur votre facture d’énergie ! modernisez vos voletsContrôlez les systèmes Velux avec un ESP32 et MQTT chauffe-pieds à transistorsConfort économe en énergie le quadricoptère M5Stamp Fly est-il le prochain drone Tello ? (Revue) optimiser la portée Wi-Fi de l’ESP32-C3 SuperMiniUne modification d’antenne simple et efficace station de soudage à air chaud ZD-8968Un outil de travail économique ou uniquement de l'air chaud ? testeur de radar de reculDétecter les pannes du système d’aide au stationnement d’un véhicule

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With Examples for Raspberry Pi Pico and ESP32 Creating and programming small electronic systems is now easier than ever before. With inexpensive development boards and modern software tools, anyone curious about embedded design can quickly move from an idea to a working piece of hardware. At the heart of this change is MicroPython—a clear, interactive, and beginner-friendly way to program microcontrollers while still remaining closely connected to the underlying electronics. This book introduces embedded programming through MicroPython on popular platforms such as the Raspberry Pi Pico and the ESP32. You will discover how to use microcontrollers for reading inputs, processing data, and controlling outputs in a predictable, real-time loop. With just a few lines of code, you can blink LEDs, read sensors, drive motors, and communicate with the outside world. The interactive REPL programming interface encourages experimentation and fast learning, making concepts tangible from the very first chapter. While different boards offer different capabilities, they all share the same core principles. Timers, GPIO, analog I/O, PWM, interrupts, and communication interfaces form the foundation of every embedded system. By focusing on these universal building blocks, this book helps you build skills that transfer across platforms and scale naturally toward more advanced development. Whether you are a beginner or an experienced programmer entering embedded systems, you will find that working with MicroPython is both practical and genuinely enjoyable.

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Learn programming for Alexa devices, extend it to smart home devices and control the Raspberry Pi The book is split into two parts: the first part covers creating Alexa skills and the second part, designing Internet of Things and Smart Home devices using a Raspberry Pi. The first chapters describe the process of Alexa communication, opening an Amazon account and creating a skill for free. The operation of an Alexa skill and terminology such as utterances, intents, slots, and conversations are explained. Debugging your code, saving user data between sessions, S3 data storage and Dynamo DB database are discussed. In-skill purchasing, enabling users to buy items for your skill as well as certification and publication is outlined. Creating skills using AWS Lambda and ASK CLI is covered, along with the Visual Studio code editor and local debugging. Also covered is the process of designing skills for visual displays and interactive touch designs using Alexa Presentation Language. The second half of the book starts by creating a Raspberry Pi IoT 'thing' to control a robot from your Alexa device. This covers security issues and methods of sending and receiving MQTT messages between an Alexa device and the Raspberry Pi. Creating a smart home device is described including forming a security profile, linking with Amazon, and writing a Lambda function that gets triggered by an Alexa skill. Device discovery and on/off control is demonstrated. Next, readers discover how to control a smart home Raspberry Pi display from an Alexa skill using Simple Queue Service (SQS) messaging to switch the display on and off or change the color. A node-RED design is discussed from the basic user interface right up to configuring MQTT nodes. MQTT messages sent from a user are displayed on a Raspberry Pi. A chapter discusses sending a proactive notification such as a weather alert from a Raspberry Pi to an Alexa device. The book concludes by explaining how to create Raspberry Pi as a stand-alone Alexa device.

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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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Diese Ausgabe steht allen GOLD- und GREEN-Mitgliedern auf der ElektorMagazine-Website zum Download bereit! Sie sind noch kein Mitglied? Hier klicken! Der ESP-BLASTEine Mini-Raketendrohne mit ESP32, die über 100 km/h erreicht Wireless Workshop (1)Freigeschaltetes Funkmodul: 433-MHz-CC1101-Sub-GHz-Transceiver AM-Sendermit Rechteck-/Sinuswellengenerator auf Raspberry Pi Pico STM32Cube Innovations ChallengeTreten Sie mit Ihrem besten STM32C5-Design an CoffeeCallerWie ein langer Flur zu einer maßgefertigten Mesh-Netzwerk-Platine führte AudiotronicsKlirrfaktor Elektor ist 65Projekte aus früheren September/Oktober-Ausgaben Geräteortung durch Bluetooth Channel SoundingZentimetergenaue Entfernungsmessung im IoT der nächsten Generation 2026: Eine KI-OdysseeQuantencomputing ist nicht die nächste GPU Cloud-Schutz durch Edge-Sicherheit Erste Erfahrungen mit dem HackRF ProPraktische Tests mit der neuen SDR-Hardware Herausforderung ElektromobilitätEffiziente Lötlösungen für moderne Fahrzeugtechnik Modem-Update von GPRS/2G auf LTE/4Gam Beispiel einer Funk-Alarmzentrale Loop-Antenne mit RF BricksTeil 1: Kurzwellen-Antenne mit einstellbarer Richtwirkung im Selbstbau Internetradio-zu-AM-KonverterVerwendung eines ESP32-S3 als Sender Projekt 2.0 mioty – ein ÜberblickLPWAN à la Fraunhofer Werkbank-WeisheitPraktische Tipps von Experten Walter, das kompakte IoT-ModulTeil 2: Zugriff auf Wetter- und Datendienste

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50+ Android Apps with Raspberry Pi, ESP32 and Arduino This book is about developing apps for Android compatible mobile devices using the MIT App Inventor online development environment. MIT App Inventor projects can be in either standalone mode or use an external processor. In standalone mode, the developed application runs only on the mobile device (e.g. Android). In external processor-based applications, the mobile device communicates with an external microcontroller-based processor, such as Raspberry Pi, Arduino, ESP8266, ESP32, etc. In this book, many tested and fully working projects are given both in standalone mode and using an external processor. Full design steps, block programs, circuit diagrams, QR codes and full program listings are given for all projects. The projects developed in this book include: Using the text-to-speech component Intonating a received SMS message Sending SMS messages Making telephone calls using a contacts list Using the GPS and Pin-pointing our location on a map Speech recognition and speech translation to another language Controlling multiple relays by speech commands Projects for the Raspberry Pi, ESP32 and Arduino using Bluetooth and Wi-Fi MIT APP Inventor and Node-RED projects for the Raspberry Pi The book is unique in that it is currently the only book that teaches how to develop projects using Wi-Fi and Node-RED with MIT App Inventor. The book is aimed at students, hobbyists, and anyone interested in developing apps for mobile devices. All projects presented in this book have been developed using the MIT App Inventor visual programming language. There is no need to write any text-based programs. All projects are compatible with Android-based mobile devices. Full program listings for all projects as well as detailed program descriptions are given in the book. Users should be able to use the projects as they are presented, modifying them to suit their own needs.

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KENNISMAKING MET NEURONEN IN NEURALE NETWERKEN (DEEL 1)Kunstmatige Neuronen EMC PRE-COMPLIANCE TEST VOOR UW DC-GEVOED PROJECT (DEEL 1)Dubbele DC-LISN ELEKTRONISCHE BELASTING VOOR DC EN ACTot 400 V en 10 A (piek) ALLE BEGIN......neemt het op tegen de spoel! BEELDVERWERKING MET DE NVIDIA JETSON NANO (DEEL 1)De Hardware en Software EEN GEDETAILLEERD ONDERZOEK NAAR NETTRANSFORMATORENIn- en uitschakelgedrag YES WE CAN MET PICAN 3Een CAN Bus HAT voor de Raspberry Pi 4 ZONNEPANELEN OP JE BALKONZelfbouw balkoncentrale = snel terugverdiend! BEELDVERWERKING EN VIDEO-STREAMING MET EEN RASPBERRY PI 4De Raspberry Pi High-Quality Camera in de praktijk DISPLAYS GEBRUIKEN IN RASPBERRY PI-PROJECTENEen hoofdstuk als voorbeeld: Organische LED-displays (OLED) KENNISMAKING MET DE PARALLAX PROPELLER 2 (DEEL 4):Tekens Versturen ELEKTOR @ 60Een terugblik op voorgaande septembers OOST WEST LAB BESTop het Friese platteland, waar de buizen bloeien... HYBRIDENVreemde onderdelen, de serie EEN KOMPASROOS MET DE GY-271Of waarom we in een acht bewegen om een sensor te kalibreren HOE GROOT IS UW VOETAFDRUK?Bereken de ecologische voetafdruk van uw elektronica CONNECTED THERMOSTAAT MET ESP32Houd uw wijn op de juiste temperatuur! MAGNETISCHE LEVITATIE OP DE DIGITALE MANIERESP32 Pico vervangt de Analoge Comparator ULTIMATE ARDUINO UNO HARDWARE MANUALEen hoofdstuk als voorbeeld: Main Microcontroller Bootloader MICROPYTHON VOOR DE ESP32 C.S. (DEEL 2)Eenvoudig Matrix Displays besturen MADMACHINE SWIFTIO BOARDModerne taal ontmoet moderne Hardware UIT HET LEVEN GEGREPENKnipperlichtrelatie HEXADOKUThe Original Elektorized Sudoku

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Design IoT Projects with Raspberry Pi, Arduino and ESP32 The Internet of Things (IoT) is becoming a major application area for embedded systems. As a result, more and more people are becoming interested in learning about embedded design and programming. Technical colleges and universities are moving away from legacy 8 and 16-bit microcontrollers and are introducing 32-bit embedded microcontrollers to their curriculums. Many IoT applications demand precision, high processing power, and low power consumption. Produced by IBM, Node-RED is an open-source visual editor for wiring the Internet of Things. Node-RED comes with a large number of nodes to handle a multitude of tasks. The required nodes are selected and joined together to perform a particular task. Node-RED is based on flow type programming where nodes are configured and joined together to form an application program. There are nodes for performing complex tasks, including web access, Twitter, E-mail, HTTP, Bluetooth, MQTT, controlling GPIO ports, etc. One particularly nice aspect of Node-RED is that the programmer does not need to learn how to write complex programs. For example, an email can be sent by simply joining nodes together and writing only a few lines of code. The aim of this book is to teach how Node-RED can be used in projects. The main hardware platform used with most of the projects in this book is Raspberry Pi 4. Chapters are included to show how Node-RED can be also be used with Arduino Uno, ESP32 DevKitC, and the ESP8266 NodeMCU microcontroller development boards.

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