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Build Smart Applications with Raspberry Pi, Arduino, and ESP32 Discover how easy and exciting mobile app development can be with MIT App Inventor. This hands-on guide takes you from basic concepts to building real-world mobile applications using a simple visual programming approach—no prior coding experience required. You will create IoT and AI-powered apps for Android devices and explore how App Inventor can also be used with iPhones and iPads. Connect your applications to platforms such as Arduino UNO R4 WiFi, ESP32, Raspberry Pi Pico (2)W and Raspberry Pi 5, enabling you to build smart, connected systems. Inside the book, you will learn how to: Build interactive apps using buttons, images, sound, and multimedia Create text-to-speech and speech-recognition applications Develop camera-based and location-aware (GPS) apps Design useful tools such as calculators and educational apps Work with smartphone sensors like accelerometers and light sensors Build AI-powered applications, including voice assistants and image-generation features Send and receive messages, and create communication-based apps Connect mobile apps to hardware using Wi-Fi and Bluetooth Control real devices such as LEDs, motors, and sensors Designed for beginners, students, and hobbyists, this book focuses on learning by doing. By the end, you will have the skills and confidence to create your own innovative applications that interact with both the digital and physical worlds. Start building and turning your ideas into reality.

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Multitasking and multiprocessing have become a very important topic in microcontroller-based systems, namely in complex commercial, domestic, and industrial automation applications. As the complexity of projects grows, more functionalities are demanded from the projects. Such projects require the use of multiple inter-related tasks running on the same system and sharing the available resources, such as the CPU, memory, and input-output ports. As a result of this, the importance of multitasking operations in microcontroller-based applications has grown steadily over the last few years. Many complex automation projects now make use of some form of a multitasking kernel. This book is project-based and its main aim is to teach the basic features of multitasking using the Python 3 programming language on Raspberry Pi. Many fully tested projects are provided in the book using the multitasking modules of Python. Each project is described fully and in detail. Complete program listings are given for each project. Readers should be able to use the projects as they are, or modify them to suit their own needs. The following Python multitasking modules have been described and used in the projects: Fork Thread Threading Subprocess Multiprocessing The book includes simple multitasking projects such as independently controlling multiple LEDs, to more complex multitasking projects such as on/off temperature control, traffic lights control, 2-digit, and 4-digit 7-segment LED event counter, reaction timer, stepper motor control, keypad based projects, car park controller, and many more. The fundamental multitasking concepts such as process synchronization, process communication, and memory sharing techniques have been described in projects concerning event flags, queues, semaphores, values, and so on.

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The Siglent SPD4306X is a 4-channel DC Linear Programmable Power Supply equipped with a 4.3-inch TFT-LCD display, friendly human-machine interface, and excellent performance indicators. Real-time waveform display provides engineers with an informative user interface. SPD4306X offers a total output power of 400 W with a resolution of 1 mV/1 mA. The maximum voltage and current for each channel are as follows: CH1: 15 V/1.5 A CH2: 30 V/6 A CH3: 30 V/6 A CH4: 15 V/1 A Caractéristiques Rated output power: 400 W Rated voltage: 32 V, 12 V, 30 V Up to four high-precision power supplies with independent controllable outputs, supporting CH2 and CH3 series and parallel connections Clear graphical interface with waveform and timer display modes 5-digit voltage and current display with minimum resolution of 1 mV, 1 mA Fast output response time: <50us The high current channel support remote voltage compensation sense function. The maximum compensation voltage is 0.6 V Overvoltage protection and overcurrent protection or safe and accurate operation Equipped with a 4.3-inch TFT-LCD display (480 x 272 resolution) USB and LAN standard communication USB-GPIB module is optional Excellent channel density with up to 4 channels in a 3U half rack package Internal data storage for setups and parameters Embedded Web Server with instrument communication that doesn’t require software installation Fully SCPI programming command set support as well as a LabView driver for remote control and system automation Spécifications SPD4323X SPD4121X SPD4306X Channel Output CH1: Voltage 0 to 6 V Current 0 to 3.2 ACH2: Voltage 0 to 32 V Current 0 to 3.2 ACH3: Voltage 0 to 32 V Current 0 to 3.2 ACH4: Voltage 0 to 6 V Current 0 to 3.2 A CH1: Voltage 0 to 15 V Current 0 to 1.5 ACH2: Voltage 0 to 12 V Current 0 to 10 ACH3: Voltage 0 to 12 V Current 0 to 10 ACH4: Voltage 0 to 15 V Current 0 to 1.5 A CH1: Voltage 0 to 15 V Current 0 to 1.5 ACH2: Voltage 0 to 30 V Current 0 to 6 ACH3: Voltage 0 to 30 V Current 0 to 6 ACH4: Voltage 0 to 15 V Current 0 to 1 A Resolution 1 mV, 1 mA 1 mV, 1 mA 1 mV, 1 mA Setting Accuracy Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Readback Accuracy Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Display 4.3" TFT-LCD 5-digit voltage and current display 4.3" TFT-LCD 5-digit voltage and current display 4.3" TFT-LCD 5-digit voltage and current display Output power 240 W 285 W 400 W Inclus 1x Siglent SPD4306X Power Supply 1x Power cord (EU) 1x Output test cord (3 A) 1x USB cable 1x Quick start guide Téléchargements Datasheet Manual Quick start

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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.Super Servo TesterTestez jusqu'à quatre servos, isolés ou in situsignaux analogiques et microcontrôleursCA/N, CN/A, mesure du courant, et plusEmbedded World 2023l'échantillonnage sub-Nyquist en pratiquecapture fiable des hautes fréquences à l'aide du sous-échantillonnageconnecter un smartphone Android à un ESP32 ?projet pratique avec l'API wifi d'Androidfiltre actif 1 kHz pour mesures de distorsionmesures améliorées par l'optimisation du signal de mesuredémarrer en électronique... multivibrationsProjet 2.0corrections, mises à jour et messages de lecteursle nouveau protocole I3Ceffet d'annonce ou vrai progrèsBlueRC : télécommande IR avec smartphone et ESP32adaptative et universellela documentation des microcontrôleurs sans peine (2)registres et schémas de principeautomatisation des tests et des mesuresprogrammation de l'équipement d'essai pour qu'il fasse ce que vous voulezInfographie : test et mesureimmunité contre les surtensionsprotection pour modules de puissance CC/CC non isolésappareil de mesure Wihatesteurs et compteurs d'installation sur lesquels vous pouvez compterautomatisation des tests et partage des résultatssur le vifl'électronique des blocsenregistreur de données énergétiquesmesurer et enregistrer la consommation d'énergieassemblage du kit Rover M.A.R.S. de 4tronixdisque de stationnement avec affichage e-papierune version informatisée innovanteeCO₂ Telegram botmesureur de la qualité de l'air avec notification par Telegramles coulisses de l'audio haut de gamme maisonTon Giesberts d'Elektor interviewé sur l'art de la conception analogiquevisite à domicilenouvelle ciblelecture d'étiquettes RFID et serrure de porte RFIDexemples de projets tirés du guide d'expérimentation pour Arduino d'ElektorSondes de courant RF pour oscilloscopeLa mesure de courants RF sans peinepas pour les mauviettes - kit bras robotiqueavec Raspberry Pi Pico et MicroPythonIA générativeMais qui a fait ça ?Hexadoku

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USB-Logikanalysatoren am PC mit Arduino, Raspberry Pi und Co Schritt-für-Schritt-Anleitungen führen Sie in die Analyse moderner Protokolle von I²C, SPI, UART, RS-232, NeoPixel, WS28xx, HD44780 und 1-Wire ein. Anhand von zahlreichen Experimentierschaltungen mit dem Raspberry Pi Pico, Arduino Uno und dem Bus Pirate üben Sie die praxisnahe Anwendung gängiger USB-Logikanalysatoren ein. Alle in diesem Buch vorgestellten Experimentierschaltungen wurden vollständig getestet und sind funktionsfähig. Die notwendigen Programmlistings sind enthalten, es sind keine besonderen Programmier- oder Elektronikkenntnisse für diese Schaltungen notwendig. Es werden die Programmiersprachen MicroPython und C mit den Entwicklungsumgebungen Thonny und Arduino IDE eingesetzt. Dieses Buch verwendet mehrere Modelle flexibler und weit verbreiteter USB-Logikanalysatoren und zeigt die Stärken und Schwächen jeder Preisklasse. Sie werden kennenlernen, welche Kriterien für Ihre Arbeit wichtig sind und in der Lage sein, das für Sie passende Gerät zu finden. Egal ob Arduino, Raspberry Pi oder Raspberry Pi Pico: Die abgebildeten Beispielschaltungen ermöglichen einen schnellen Start in die Protokollanalyse und können auch als Grundlage für eigene weitere Experimente dienen. Sie werden alle wichtigen Begriffe und Zusammenhänge kennenlernen, eigene Experimente durchführen, selbstständig Protokolle analysieren und nach der Lektüre dieses Buches – im Bereich der digitalen Signale und Protokolle – ein umfassendes Wissen aufgebaut haben.

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Von den Machern von MagPi, dem offiziellen Raspberry Pi Magazin Starten Sie jetzt mit dem Raspberry Pi 5, dem neuesten und besten Minicomputer von Raspberry Pi – und lernen Sie, mit diesem unglaublichen Computer zu programmieren und Projekte zu erstellen. In diesem Buch finden Sie außerdem jede Menge kreative Ideen und Tipps, die Sie mit dem Raspberry Pi 4, dem Raspberry Pi Zero 2 W und dem Raspberry Pi Pico W umsetzen können. Mit den neuesten Reviews, Tutorials, Projekten, Anleitungen und mehr ist dies Ihre ultimative Ressource für den Raspberry Pi! 228 Seiten über Raspberry Pi Alles, was Sie über den Raspberry Pi 5 wissen müssen Erste Schritte für jeden Raspberry Pi Viel Spaß mit Elektronik und dem Pico W Inspirierende Projekte für Ihre nächste Bauidee Lernen Sie MicroPython, indem Sie ein Handheld bauen Erste Schritte mit dem Raspberry Pi Camera Modul Künstliche Intelligenz: Bauen Sie Ihren eigenen GPT Chatbot

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. The ESP-BLASTA Mini ESP32 Rocket Drone That Flies 100 km/h+ Wireless Workshop (1)Radio Modules Unlocked: 433 MHz CC1101 Sub-GHz Transceiver AM TransmitterWith Square/Sine Wave Generator on Raspberry Pi Pico STM32Cube Innovation ChallengeCompete with Your Best STM32C5 Design CoffeeCallerHow a Long Hallway Led to a Custom Mesh-Networked PCB AudiotronicsTotal Harmonic Distortion Elektor at 65Projects from Septembers and Octobers Past Bluetooth Channel Sounding for Asset TrackingCentimeter-Level Precision Ranging for Next-Generation IoT 2026: An AI OdysseyQuantum Computing Is Not the Next GPU Protecting the Cloud Demands Security at the Edge First Experiences with the HackRF ProPractical Tests with the New SDR Hardware Modem Upgrade from GPRS/2G to LTE/4GUsing a Wireless Alarm Control Panel as an Example Loop Antenna with RF BricksPart 1: A DIY Shortwave Antenna with Adjustable Directivity Internet Radio to AM ConverterUsing an ESP32-S3 as Transmitter Err-lectronics mioty — An OverviewFraunhofer’s Approach to LPWAN Workbench WisdomPractical Tips from Experts Walter, the Compact IoT ModulePart 2: Accessing Weather and Data Services

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3rd Edition – Fully updated for Raspberry Pi 4 The Raspberry Pi is a very cheap but complete computer system that allows all sorts of electronics parts and extensions to be connected. This book addresses one of the strongest aspects of the Raspberry Pi: the ability to combine hands-on electronics and programming. Combine hands-on electronics and programming After a short introduction to the Raspberry Pi you proceed with installing the required software. The SD card that can be purchased in conjunction with this book contains everything to get started with the Raspberry Pi. At the side of the (optional) Windows PC, software is used which is free for downloading. The book continues with a concise introduction to the Linux operating system, after which you start programming in Bash, Python 3 and Javascript. Although the emphasis is on Python, the coverage is brief and to the point in all cases – just enabling you to grasp the essence of all projects and start adapting them to your requirements. All set, you can carry on with fun projects. The book is ideal for self-study No fewer than 45 exciting and compelling projects are discussed and elaborated in detail. From a flashing lights to driving an electromotor; from processing and generating analog signals to a lux meter and a temperature control. We also move to more complex projects like a motor speed controller, a web server with CGI, client-server applications and Xwindows programs. Each project has details of the way it got designed that way The process of reading, building, and programming not only provides insight into the Raspberry Pi, Python, and the electronic parts used, but also enables you to modify or extend the projects any way you like. Also, feel free to combine several projects into a larger design.

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Projets pratiques en électronique analogique, audio et bien plus encore Découvrez une remarquable collection de plus de 240 projets électroniques publiés dans Elektor Magazine et soigneusement sélectionnés par Ton Giesberts, ingénieur renommé du laboratoire Elektor. La clé USB réunit une grande variété de circuits, de conceptions et d’idées de projets pratiques réalisés au fil des années par de nombreux auteurs et ingénieurs Elektor. Couvrant un large éventail de domaines de l’électronique, cette vaste archive constitue une précieuse source de connaissances et d’inspiration pour les ingénieurs, les makers, les étudiants et les passionnés d’électronique. Plus de 240 projets Elektor sélectionnés Soigneusement compilés par l’ingénieur Elektor Ton Giesberts Idéal pour construire, expérimenter et découvrir de nouvelles idées Découvrez plusieurs décennies d’expertise Elektor réunies dans une collection complète de projets. Points forts Amplificateur audio Q-Watt Amplificateur haut de gamme Fortissimo-100 Carte tampon pour Raspberry Pi 400 Convertisseur série USB multiprotocole Générateur de fonctions DDS Wattmètre AC/DC Chargeur de téléphone Spécifications Mémoire 8 Go Connecteurs 1x USB-A1x USB-C Matériel et logiciel requis Ordinateur avec Adobe Reader version 7 ou sup. Navigateur Internet

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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.Pour les yeux et les oreillessortie vidéo sur les microcontrôleurs (1)vidéo compositeelectronica 2022nouvelles du plus grand salon mondial de l'électroniquecaméra ESP32si simple qu'on n'a même pas besoin du wifialimentation ATX pour Raspberry Piamplificateur pour casque 32 Ωune solution simple mais de qualité à trois CIhorloges radiocommandées SDRcinq signaux horaires, six affichagesdémarrer en électroniquediodes spécialessur le viferrances qualitativesrétro-ingénierie d'un badge LED Bluetooth Low Energycomment commander un appareil BLE avec un script Pythonkit de développement MakePython ESP32tout dans une boîtemesure du THD avec un oscilloscope et une FFTcalculer facilement le facteur de distorsionmachines à vision totalela technologie derrière les systèmes de vision industrielle d'aujourd'huiInfographiesl'évolution de la commande vocale et audio des appareils électroniquesbilan du WEEF 2022bilan du salon electronica 2022les innovateurs n'ont pas manqué d'impressionnerThe Tubeun surprenant amplificateur à tubesà quand des biomatériaux pour l'électronique ?commutateur d'antenne Opera Cake pour HackRF Oneconnectez jusqu'à huit antennes à votre SDRconcevoir avec Arduino et plusentretien avec l'auteur Ashwin Pajankarjauge de longueur à lidarmesure jusqu'à 12 mles signaux audios et l'ESP32l'environnement ESP-ADF en pratiqueKit amplificateur de puissance Fortissimo-100 d'Elektorutiliser la lumière pour les effets sonoresfiltre synthétiseur à base de LDR, contrôlé en tension, 24 dB/octamplificateur Hi-Fi d'Elektorle plus bruyant de tous !visite à domicileafficheur volumétrique made in Canadaprojet 2.0corrections, mises à jour et courriers des lecteursHexadoku

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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 advanced programming of the Raspberry Pi computer using the Python programming language. The book explains in simple terms and with examples: How to configure the Raspberry Pi computer; How to install and use the Linux operating system and the desktop; How to write advanced programs using the Python programming language; How to use graphics in our programs; How to develop hardware based projects using the Raspberry Pi. The book starts with an introduction to the Raspberry Pi computer and covers the topics of purchasing all the necessary accessories and installing and operating the Linux operating system in command mode. The network interface of the RPi is explained in simple steps, demonstrating how the computer can be accessed remotely from a desktop or a laptop computer. The remaining parts of the book cover the Python programming language in detail, including advanced topics such as operating system calls, multitasking, interprocess synchronization and interprocess communication techniques. The important topic of network programming using UDP and TCP protocols is described with working examples. The Tkinter graphical user interface module (GUI) is described in detail with example widgets and programs. The last part of the book includes hardware projects based on using the advanced programming topics such as multitasking and interprocess communication techniques. All the projects given in the book have been fully tested and are working. Complete program listings of all projects are provided with detailed explanations.

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