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This book is all about building your own DIY home control system. It presents two innovative ways to assemble such a system: By recycling old PC hardware – possibly extending the life of an old PC, or by using Raspberry Pi. In both cases, the main system outlined in this book will consist of a computer platform, a wireless mains outlet, a controller and a USB webcam – All linked together by Linux. By using the Raspberry Pi in conjunction with Arduino (used as an advanced I/O system board), it is possible to construct a small, compact, embedded control system offering enhanced capacity for USB integration, webcams, thermal monitoring and communication with the outside world. The experience required to undertake the projects within this book are minimal exposure to PC hardware and software, the ability to surf the internet, burn a CD-ROM and assemble a small PCB.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. CaptureCountAn Object Detector and Counter on the Raspberry Pi 5 Voltage Reference With Arduino Pro MiniLinearize and Calibrate Your Analog Inputs FPGAs for BeginnersThe Path From MCU to FPGA Programming Update: STM32 Wireless Innovation Design Contest 2024 Bluetooth LE With MAUIControl Apps for Android & Co. Port-Expanding Breakout BoardIncrease the Number of I/Os on Your Dev Board AI SpecialistMachine Learning with the Jetson Nano 2024: An AI OdysseyFirst Forays Into TensorFlow 262,144 Ways to Play The Game of LifeA Reader’s Project in Brief From Life’s ExperienceThe Chinese Dragon Get Your (Brushed DC) Motor Running!Sample Projects from the Elektor Motor Control Development Bundle ESP32-RS-232 AdapterA Wireless Link for Classic Test Equipment Starting Out in Electronics……More About Opamps ESP Library Recommendations Piezoelectric DevicesPeculiar Parts, the Series A Smart Object CounterImage Recognition Made Easy with Edge Impulse Resolve Your Trickiest Embedded Development Challenges ESP32 TerminalA Handheld Device with a Touch-Capable Display Getting Started With the Zephyr RTOSAs Powerful as It Is Hard to Master Award-Winning EthicsA Dialog with CTO Alexander Gerfer of Würth Elektronik eiSos on Enabling Innovation and Mindful Behavior Err-lectronicsCorrections, Updates, and Readers’ Letters Infographics: Embedded and AI Square Wave Generation BenchmarksExploring ESP32, Pico, and Other Microcontrollers

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Cool Projects for Test, Measurement, and Control The Raspberry Pi has dominated the maker scene for many years. Freely accessible I/O pins have made it one of the most popular processor boards of all time. However, the classic Raspberry Pi has no analog inputs. Direct measurement of analog values is therefore not possible. Consequently, photodiodes, NTCs, Hall sensors, etc. cannot be read directly. In addition, the pins are connected directly to the exposed contacts, i.e. without a driver or protection circuit. This can quickly destroy the central controller and thus the entire Raspberry Pi. These problems can be elegantly solved with the Pico. As a front-end, it can easily handle a wide range of measurement tasks. In addition, the Pico is much cheaper than a classic Raspberry Pi 4 or 5. If a faulty circuit leads to the destruction of the Pico, this is relatively easy to handle. This makes the combination of a classic Raspberry Pi 4 or 5 and the Pico an ideal pair. The book introduces the broad and highly topical field of modern controller technology using the combined force of a Raspberry Pi 4 or 5 and a Raspberry Pi Pico. In addition to a detailed introduction to the operation and functionality of the controller boards themselves, the book also focuses on data acquisition and processing with digital processors. Especially the combination of both systems offers a wide range of interesting possibilities. Some practical projects from the contents: USB between Raspberry Pi 4 or 5 and Pico I²C Communication and Pico as an I²C device Voltmeter and Computer Thermometer Pico W as a Web Server and WLAN Scanner Frequency Meters and Generators OLED Displays on Raspberry Pi 4 or 5 and Pico Energy Saving Monitor Which Astronauts are in Orbit? Mini Monitor for Current Bitcoin Exchange Rate

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Projekte mit Arduino, ESPHome, Home Assistant und Raspberry Pi & Co Dieses E-Book enthält verschiedene Projektbeispiele und beginnt mit einer Einführung in die Elektronik. Es erklärt unter anderem, wie man Home Assistant auf einem Raspberry Pi installiert, wie man Raumklimasensoren für Temperatur und Luftfeuchtigkeit nutzt, das MQTT-Protokoll sowie weitere Schnittstellen einsetzt und ESPHome verwendet, um Sensoren und Aktoren in Home Assistant zu integrieren. Zahlreiche Video-Tutorials ergänzen das Buch. Grundlagen der Elektrotechnik Das Buch beginnt mit einer Einführung in die Elektrotechnik. Ihr lernt die Grundlagen von Spannung, Strom, Widerständen, Dioden und Transistoren. Arduino und Mikrocontroller Ein kompletter Abschnitt widmet sich dem Arduino Uno. Ihr lernt den Aufbau kennen, schreibt erste Programme und erarbeitet praktische Beispiele. Home Assistant und Automatisierung Ihr erfahrt, wie Home Assistant auf einem Raspberry Pi eingerichtet wird, und lernt den Umgang mit Automatisierungen, Szenen und Geräten. Zusätzlich wird auf Zigbee, MQTT und ESP-NOW eingegangen – wichtige Technologien für die Heimautomation. ESP8266, ESP32 und ESP32-CAM Die beliebten ESP-Mikrocontroller werden ausführlich behandelt. Nach einer theoretischen Einführung folgen praktische Projekte, die euch zeigen, wie ihr das Beste aus diesen Geräten herausholen könnt. Sensoren und Aktoren Das Buch erklärt die Funktionsweise und Anwendung zahlreicher Sensoren wie Temperatur- und Luftfeuchtigkeitssensoren, Bewegungsmelder und RFID-Reader. Bei den Aktoren werden Schrittmotoren, e-ink Displays, Servo-Motoren und vieles mehr beleuchtet. Zu allen Geräten gibt es praxisnahe Anwendungsbeispiele. ESPHome Dieses Kapitel zeigt euch, wie ihr Sensoren und Aktoren ohne Programmieraufwand in Home Assistant integriert. Ihr werdet Schritt für Schritt durch die Einrichtung mit ESPHome geführt. LEDs und Lichttechnik In diesem Kapitel lernt ihr verschiedene LED-Typen und deren Einsatzmöglichkeiten kennen. Grundlagen der Lichttechnik werden ebenfalls erklärt. Node-RED Ein eigenes Kapitel ist Node-RED gewidmet. Ihr erlernt die Grundlagen dieses leistungsstarken Tools und werdet Schritt für Schritt durch die Einrichtung und Nutzung geführt. Integrierte Schaltkreise (ICs) In der Elektronik gibt es zahlreiche ICs, die uns das Leben erleichtern. Ihr lernt die wichtigsten kennen und wendet das Wissen in praktischen Projekten an. Programmieren für Profis Fortgeschrittene Themen wie die korrekte Verwendung von Tastern, der Einsatz von Interrupts und die Nutzung eines NTP-Servers für Zeit-Synchronisation werden in diesem Kapitel detailliert behandelt. Downloads GitHub

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Program, build, and master 60+ projects with the Wireless RP2040 The Raspberry Pi Pico and Pico W are based on the fast, efficient, and low-cost dual-core ARM Cortex M0+ RP2040 microcontroller chip running at up to 133 MHz and sporting 264 KB of SRAM and 2 MB of Flash memory. Besides spacious memory, the Pico and Pico W offer many GPIO pins, and popular peripheral interface modules like ADC, SPI, I²C, UART, PWM, timing modules, a hardware debug interface, and an internal temperature sensor. The Raspberry Pi Pico W additionally includes an on-board Infineon CYW43439 Bluetooth and Wi-Fi chipset. At the time of writing this book, the Bluetooth firmware was not yet available. Wi-Fi is however fully supported at 2.4 GHz using the 802.11b/g/n protocols. This book is an introduction to using the Raspberry Pi Pico W in conjunction with the MicroPython programming language. The Thonny development environment (IDE) is used in all of the 60+ working and tested projects covering the following topics: Installing the MicroPython on Raspberry Pi Pico using a Raspberry Pi or a PC Timer interrupts and external interrupts Analogue-to-digital converter (ADC) projects Using the internal temperature sensor and external sensor chips Using the internal temperature sensor and external temperature sensor chips Datalogging projects PWM, UART, I²C, and SPI projects Using Bluetooth, WiFi, and apps to communicate with smartphones Digital-to-analogue converter (DAC) projects All projects are tried & tested. They can be implemented on both the Raspberry Pi Pico and Raspberry Pi Pico W, although the Wi-Fi-based subjects will run on the Pico W only. Basic programming and electronics experience are required to follow the projects. Brief descriptions, block diagrams, detailed circuit diagrams, and full MicroPython program listings are given for all projects.

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TurtleBot 4 est la nouvelle génération de la plateforme robotique open source la plus populaire au monde pour l'éducation et la recherche, offrant une meilleure puissance de calcul, de meilleurs capteurs et une expérience utilisateur de classe mondiale à un prix abordable. TurtleBot 4 Lite est équipée d'une base mobile iRobot Create3, d'un puissant Raspberry Pi 4 exécutant ROS 2, d'une caméra stéréo spatiale OAK-D AI, d'un LiDAR 2D et de bien d'autres choses encore. Tous les composants ont été intégrés de manière transparente pour offrir une plateforme de développement et d'apprentissage prête à l'emploi. Profitez de la communauté florissante de développeurs ROS open source et commencez à apprendre la robotique dès le premier jour. Spécifications Plate-forme de base iRobot Create 3 Roues (diamètre) 72 mm Garde au sol 4,5 mm Ordinateur de bord Raspberry Pi 4 (4 Go) Vitesse linéaire maximale 0,31 m/s en mode sécurisé0,46 m/s sans mode sécurisé Vitesse angulaire maximale 1,90 rad/s Charge utile maximale 9 kg Temps de fonctionnement 2h 30m - 4h selon la charge Temps de charge 2h 30m Lidar RPLIDAR A1M8 Caméra OAK-D-Lite Alimentation utilisateur VBAT @1.9 A5 V @ faible courant3,3 V @ faible courant Extension USB 2x USB 2.0 (Type A)2x USB 3.0 (Type A) LED programmables Créer 3 anneaux lumineux Boutons et interrupteurs 2x boutons d'utilisateur Create 31x bouton d'alimentation Create3 Batterie 26 Wh Lithium Ion (14,4 V nominal) Station d'accueil Inclus Taille (L x L x H) 342 x 339 x 192 mm Poids 3,3 kg Téléchargements • Manuel de l’utilisateur  

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Raspberry Pi (Neuauflage) | E-book

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PC USB Logic Analyzers with Arduino, Raspberry Pi, and Co. Step-by-step instructions guide you through the analysis of modern protocols such as I²C, SPI, UART, RS-232, NeoPixel, WS28xx, HD44780 and 1-Wire. With the help of numerous experimental circuits based on the Raspberry Pi Pico, Arduino Uno and the Bus Pirate, you will learn the practical application of popular USB logic analyzers. All the experimental circuits presented in this book have been fully tested and are fully functional. The necessary program listings are included – no special programming or electronics knowledge is required for these circuits. The programming languages used are MicroPython and C along with the development environments Thonny and Arduino IDE. This book uses several models of flexible and widely available USB logic analyzers and shows the strengths and weaknesses of each price range. You will learn about the criteria that matter for your work and be able to find the right device for you. Whether Arduino, Raspberry Pi or Raspberry Pi Pico, the example circuits shown allow you to get started quickly with protocol analysis and can also serve as a basis for your own experiments. After reading this book, you will be familiar with all the important terms and contexts, conduct your own experiments, analyze protocols independently, culminating in a comprehensive knowledge set of digital signals and protocols.

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PC USB Logic Analyzers with Arduino, Raspberry Pi, and Co. Step-by-step instructions guide you through the analysis of modern protocols such as I²C, SPI, UART, RS-232, NeoPixel, WS28xx, HD44780 and 1-Wire. With the help of numerous experimental circuits based on the Raspberry Pi Pico, Arduino Uno and the Bus Pirate, you will learn the practical application of popular USB logic analyzers. All the experimental circuits presented in this book have been fully tested and are fully functional. The necessary program listings are included – no special programming or electronics knowledge is required for these circuits. The programming languages used are MicroPython and C along with the development environments Thonny and Arduino IDE. This book uses several models of flexible and widely available USB logic analyzers and shows the strengths and weaknesses of each price range. You will learn about the criteria that matter for your work and be able to find the right device for you. Whether Arduino, Raspberry Pi or Raspberry Pi Pico, the example circuits shown allow you to get started quickly with protocol analysis and can also serve as a basis for your own experiments. After reading this book, you will be familiar with all the important terms and contexts, conduct your own experiments, analyze protocols independently, culminating in a comprehensive knowledge set of digital signals and protocols.

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In 35 Projects with the Raspberry Pi and Arduino The Internet of Things (IoT) is a trend with a strong technological impulse. At home, we want to do everything on our tablets, from browsing Facebook to watching TV, from operating lights to keeping an eye on the temperature. In 35 fun projects, this book will show you how to build your own Internet of Things system. We'll cover the hardware (primarily the Raspberry Pi and Arduino) and the software that makes control via Internet possible. We employ Wi-Fi and radio links so no requirement any longer to install cabling crisscross through your home. Assuming the projects in the book are finished, you have a complete Internet of Things system that allows you to control and view of everything in your home. For example, if there's something in the mail box or the car is securely in the garage. Also, you can switch on the lights and the alarm from your couch. The crisp explanations allow the projects to be customized with ease, for example, to turn on your coffee machine or TV remotely. The index gives easy access to creative projects that can serve as an example, enabling you to do all the connecting to the IoT independently. All project software can be downloaded free of charge from the Elektor website. In this unique book, Raspberry Pi, Arduino and HTML webpages with stylesheets and JavaScript come together in clearly-described, easy-to-build projects. This special book is an essential part of your collection!

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40+ Projects using Arduino, Raspberry Pi and ESP32 This book is about developing projects using the sensor-modules with Arduino Uno, Raspberry Pi and ESP32 microcontroller development systems. More than 40 different sensors types are used in various projects in the book. The book explains in simple terms and with tested and fully working example projects, how to use the sensors in your project. The projects provided in the book include the following: Changing LED brightness RGB LEDs Creating rainbow colours Magic wand Silent door alarm Dark sensor with relay Secret key Magic light cup Decoding commercial IR handsets Controlling TV channels with IT sensors Target shooting detector Shock time duration measurement Ultrasonic reverse parking Toggle lights by clapping hands Playing melody Measuring magnetic field strength Joystick musical instrument Line tracking Displaying temperature Temperature ON/OFF control Mobile phone-based Wi-Fi projects Mobile phone-based Bluetooth projects Sending data to the Cloud The projects have been organized with increasing levels of difficulty. Readers are encouraged to tackle the projects in the order given. A specially prepared sensor kit is available from Elektor. With the help of this hardware, it should be easy and fun to build the projects in this book.

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A Beginner's Guide to AI and Edge Computing Artificial Intelligence (AI) is now part of our daily lives. With companies developing low-cost AI-powered hardware into their products, it is now becoming a reality to purchase AI accelerator hardware at comparatively very low costs. One such hardware accelerator is the Hailo module which is fully compatible with the Raspberry Pi 5. The Raspberry Pi AI Kit is a cleverly designed hardware as it bundles an M.2-based Hailo-8L accelerator with the Raspberry Pi M.2 HAT+ to offer high speed inferencing on the Raspberry Pi 5. Using the Raspberry Pi AI Kit, you can build complex AI-based vision applications, running in real-time, such as object detection, pose estimation, instance segmentation, home automation, security, robotics, and many more neural network-based applications. This book is an introduction to the Raspberry Pi AI Kit, and it is aimed to provide some help to readers who are new to the kit and wanting to run some simple AI-based visual models on their Raspberry Pi 5 computers. The book is not meant to cover the detailed process of model creation and compilation, which is done on an Ubuntu computer with massive disk space and 32 GB memory. Examples of pre-trained and custom object detection are given in the book. Two fully tested and working projects are given in the book. The first project explains how a person can be detected and how an LED can be activated after the detection, and how the detection can be acknowledged by pressing an external button. The second project illustrates how a person can be detected, and how this information can be passed to a smart phone over a Wi-Fi link, as well as how the detection can be acknowledged by sending a message from the smartphone to your Raspberry Pi 5.

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