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ModbusRTU and ModbusTCP examples with the Arduino Uno and ESP8266 Introduction to PLC programming with OpenPLC, the first fully open source Programmable Logic Controller on the Raspberry Pi, and Modbus examples with Arduino Uno and ESP8266 PLC programming is very common in industry and home automation. This book describes how the Raspberry Pi 4 can be used as a Programmable Logic Controller. Before taking you into the programming, the author starts with the software installation on the Raspberry Pi and the PLC editor on the PC, followed by a description of the hardware. You'll then find interesting examples in the different programming languages complying with the IEC 61131-3 standard. This manual also explains in detail how to use the PLC editor and how to load and execute the programs on the Raspberry Pi. All IEC languages are explained with examples, starting with LD (Ladder Diagram) over ST (Structured Control Language) to SFC (Special Function Chart). All examples can be downloaded from the author's website. Networking gets thorough attention too. The Arduino Uno and the ESP8266 are programmed as ModbusRTU or ModbusTCP modules to get access to external peripherals, reading sensors and switching electrical loads. I/O circuits complying with the 24 V industry standard may also be of interest for the reader. The book ends with an overview of commands for ST and LD. After reading the book, the reader will be able to create his own controllers with the Raspberry Pi.

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Program and build RPi Pico-based ham station utilities, tools, and instruments Although much classical HF and mobile equipment is still in use by large numbers of amateurs, the use of computers and digital techniques has now become very popular among amateur radio operators. Nowadays, anyone can purchase a €5 Raspberry Pi Pico microcontroller board and develop many amateur radio projects using the “Pico” and some external components. This book is aimed at amateur radio enthusiasts, Electronic Engineering students, and anyone interested in learning to use the Raspberry Pi Pico to shape their electronic projects. The book is suitable for beginners in electronics as well as for those with wide experience. Step-by-step installation of the MicroPython programming environment is described. Some knowledge of the Python programming language is helpful to be able to comprehend and modify the projects given in the book. The book introduces the Raspberry Pi Pico and gives examples of many general-purpose, software-only projects that familiarize the reader with the Python programming language. In addition to the software-only projects tailored to the amateur radio operator, Chapter 6 in particular presents over 36 hardware-based projects for “hams”, including: Station mains power on/off control Radio station clock GPS based station geographical coordinates Radio station temperature and humidity Various waveform generation methods using software and hardware (DDS) Frequency counter Voltmeter / ammeter / ohmmeter / capacitance meter RF meter and RF attenuators Morse code exercisers RadioStation Click board Raspberry Pi Pico based FM radio Using Bluetooth and Wi-Fi with Raspberry Pi Pico Radio station security with RFID Audio amplifier module with rotary encoder volume control Morse decoder Using the FS1000A TX-RX modules to communicate with Arduino

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AI Projects for the Raspberry Pi with the AI HAT+ Edge AI is transforming everyday devices by putting intelligence where it matters most: directly inside the hardware. With on-device inference, a camera can recognize a visitor instantly, a phone can translate speech without streaming audio to the cloud, and a wearable can detect anomalies in real time—fast, private, and reliable even when the network disappears. This book is your practical guide to building exactly those kinds of systems with the Raspberry Pi AI HAT+ and the Hailo-8L accelerator. You’ll start with clear foundations: core AI and machine-learning concepts, how neural networks work, and what truly distinguishes Edge AI from cloud AI—plus an honest look at ethical considerations and future impacts. Then it’s straight to hands-on physical computing. Step by step, you’ll set up Raspberry Pi OS, power and cooling, and develop in Python using the Thonny IDE. You’ll learn GPIO basics with lights and servos, mount the AI HAT+ hardware, install and verify the Hailo software stack, and connect the right camera—official modules or USB webcams, even multiple cameras. From your first pipeline to real projects, you’ll run person detection, pose estimation, segmentation, and depth estimation, then level up with YOLO object detection: smart alerts, guest counters, and custom extensions. You’ll even connect vision to motion by combining gesture recognition with servo-driven mechanisms, including a robotic arm. With troubleshooting tips, hardware essentials, and a practical Python refresher, this book turns Edge AI from buzzword into buildable reality.

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Raspberry Pi (Neuauflage) | E-book

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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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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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This book is about the Raspberry Pi 3 computer and its use in various control and monitoring applications. The book explains in simple terms and with tested and working example projects, how to configure the Raspberry Pi 3 computer, how to install and use the Linux operating system, and how to write hardware based applications programs using the Python programming language. The nice feature of this book is that it covers many Raspberry Pi 3 based hardware projects using the latest hardware modules such as the Sense HAT, Swiss Pi, MotoPi, Camera module, and many other state of the art analog and digital sensors. An important feature of the Raspberry Pi 3 is that it contains on-board Bluetooth and Wi-Fi modules. Example projects are given in the book on using the Wi-Fi and the Bluetooth modules to show how real-data can be sent to the Cloud using the Wi-Fi module, and also how to communicate with an Android based mobile phone using the Bluetooth module. The book is ideal for self-study, and is intended for electronic/electrical engineering students, practising engineers, research students, and for hobbyists. It is recommended that the book should be followed in the given Chapter order. Over 30 projects are given in the book. All the projects in the book are based on the Python programming language and they have been fully tested. Full program listings of every project are given in the book with comments and full descriptions. Experienced programmers should find it easy to modify and update the programs to suit their needs. The following sub-headings are given for each project to make it as easy as possible for the readers to follow the projects: Project title Description Aim of the project Raspberry Pi type Block diagram Circuit diagram Program listing

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The Arduino Uno is an open-source microcontroller development system encompassing hardware, an Integrated Development Environment (IDE), and a vast number of libraries. It is supported by an enormous community of programmers, electronic engineers, enthusiasts, and academics. The libraries in particular really smooth Arduino programming and reduce programming time. What’s more, the libraries greatly facilitate testing your programs since most come fully tested and working. The Raspberry Pi 4 can be used in many applications such as audio and video media devices. It also works in industrial controllers, robotics, games, and in many domestic and commercial applications. The Raspberry Pi 4 also offers Wi-Fi and Bluetooth capability which makes it great for remote and Internet-based control and monitoring applications. This book is about using both the Raspberry Pi 4 and the Arduino Uno in PID-based automatic control applications. The book starts with basic theory of the control systems and feedback control. Working and tested projects are given for controlling real-life systems using PID controllers. The open-loop step time response, tuning the PID parameters, and the closed-loop time response of the developed systems are discussed together with the block diagrams, circuit diagrams, PID controller algorithms, and the full program listings for both the Raspberry Pi and the Arduino Uno. The projects given in the book aim to teach the theory and applications of PID controllers and can be modified easily as desired for other applications. The projects given for the Raspberry Pi 4 should work with all other models of Raspberry Pi family. The book covers the following topics: Open-loop and closed-loop control systems Analog and digital sensors Transfer functions and continuous-time systems First-order and second-order system time responses Discrete-time digital systems Continuous-time PID controllers Discrete-time PID controllers ON-OFF temperature control with Raspberry Pi and Arduino Uno PID-based temperature control with Raspberry Pi and Arduino Uno PID-based DC motor control with Raspberry Pi and Arduino Uno PID-based water level control with Raspberry Pi and Arduino Uno PID-based LED-LDR brightness control with Raspberry Pi and Arduino Uno

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MOTORSTEUERUNG MIT H-BRÜCKENFür DC-, Schritt- und bürstenlose Motoren DAS TEAM IM ELEKTOR-LABORUnser Ansatz, unsere bevorzugten Werkzeuge und mehr RASPBERRY PI ALS KVM-FERNSTEUERUNGDie Software Pi-KVM im Elektor-Labor-Test REVIEW: IQAUDIO CODEC ZEROEine Soundkarte für die Raspberry Pi Familie DAS PIKVM-PROJEKT UND SEINE LEHRENEin Interview mit Maxim Devaev* (Entwickler von PiKVM) AUTONOMES FAHRZEUG MIT 2D-LIDARESP32 Pico interpretiert die Daten des Lidar-Moduls RASPBERRY PI ZERO 2 WEin erfreuliches und notwendiges Update IMPRESSIONEN VOM WORLD ETHICAL ELECTRONICS FORUM 2021 MOTORSTEUERUNGWie die Motorsteuerung weniger kompliziert wird GRÖSSERE ELEKTROMOTOREPrinzipien und Wissenswertes ESP32-C3: 32-BIT-RISC-EINKERNEREin erstes Hands-on im Elektor-Labor SCHÜTZEN SIE SICH SELBST UND ANDERE!Hauptnetzschalter für den Labortisch selbst gebaut PROGRAMMIEREN IN PYTHONNickname-Generator mit grafischer Benutzeroberfläche PRODUCTRONICA FAST FORWARD AWARD 2021: DIE PREISTRÄGER VIELSEITIGER SERVO-TESTERServos ohne Datenblatt analysieren MODBUS ÜBER WLANTeil 2: Software für das Modbus-TCP-WLAN-Modul NEURONEN IN NEURONALEN NETZEN VERSTEHENTeil 3: Praktische Neuronen IM INNEREN EINES OPEN-SOURCE-PROZESSORSEin Beispiel-Kapitel: Lattice- und Xilinx-FPGAs im Vergleich ALLER ANFANG ...muss nicht schwer sein: Die Spule lässt uns nicht los! PROJEKT 2.0Korrekturen, Updates und Leserbriefe COLOR TO SOUNDWie man einen Farbsensor über I2C ausliest BATTLAB ONEBetriebsdauer von batteriebetriebenen Geräten messen und optimieren! EINFACHER ERDSCHLUSSPRÜFERIsolationstester für Netzspannungsinstallationen ARMUT UND ELEKTRONIK1. Ziel für nachhaltige Entwicklung HEXADOKUThe Original Elektorized Sudoku

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Elektor Juillet/Août 2021 (PDF)

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Bauen Sie Ihre perfekte Wetterstation oder forschen Sie zusammen mit der ganzen Welt an Umweltdaten. Mit vielen praktischen Projekten für Arduino, Raspberry Pi, NodeMCU, ESP32 und weiteren Developmentboards. Wetterstationen erfreuen sich seit Jahrzehnten großer Beliebtheit. Ob in aktuellen oder längst eingestellten Elektronik-Magazinen – regelmäßig finden sich Beiträge zum Eigenbau einer Wetterstation. Im Laufe der Jahre wurden diese Systeme immer ausgefeilter und können heute nahtlos in das Smart Home integriert werden. Allerdings erfordert dies oft die Bindung an einen (teuren) Markenhersteller, der sämtliche Komponenten abdeckt. Mit Ihrer eigenen Wetterstation können Sie jedoch mühelos mithalten – und sogar Messwerte erfassen, die kommerzielle Geräte nicht bieten. Dabei kommt der Spaß nicht zu kurz: Sie erweitern spielerisch Ihr Wissen über Elektronik, moderne Mikrocontroller-Developmentboards und Programmiersprachen. Schon für weniger als zehn Euro können Sie erste Umweltdaten erfassen und Ihr System Schritt für Schritt mit wachsendem Interesse weiter ausbauen. Aus dem Inhalt: Wind und Wetter auf der Spur Wetterdisplay mit OpenWeatherMap und Vakuum-Fluoreszenzanzeige Flüchtige organische Verbindungen in der Atemluft Mit MQ-Sensoren arbeiten: Kohlenmonoxid messen – geruchlos aber extrem giftig CO2-Ampel mit ThingSpeak-IoT-Anbindung Ein Gießautomat für Ihre Pflanzen Gutes Raumklima: Temperatur und Luftfeuchtigkeit sind wichtige Kriterien Schickes Thermometer mit alter Röhrentechnik Nostalgisches Wetterhäuschen für die ganze Familie Luftdruck und Temperatur genau messen Sonnenbrand-Warngerät DIY-Sensor für die Sonnenscheindauer Das Smartphone zeigt’s an: Nebel oder klare Sicht? Erdbeben erkennen Pegelstände von Gewässern und Behältern pH-Wert von Gewässern bestimmen Radioaktive Strahlung erkennen Mit GPS wissen Sie weltweit, wo ihr Sensor ist Logdateien mit Zeitstempel auf SD-Karten speichern LoRaWAN, The Things Network und ThingSpeak LoRaWAN-Gateway für TTN betreiben Mega-Display mit Wettervorhersage

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Raspberry Pi Pico as Spectrum AnalyzerFFTs on a Low-Cost Hardware Basis ±40-V Linear Voltage RegulatorAn Alternative Power Supply for the Fortissimo-100 Power Amplifier… and Others! MCU Wireless Communication Made FlexibleEEPROM Opens Networking Prospects for Wireless MCUs €5,000 up for grabs!Join the STM32 Wireless Innovation Design Contest 2023: An AI OdysseyGetting Started with ChatGPT’s Code Interpreter LoRa, a Swiss Army Knife (1)The LoRa Protocol and Its Advantages Adjustable Current Sink with Integrated Clock GeneratorTest Power Supplies, Voltage Converters and Batteries Two New Arduino UNO R4 Boards: Minima and WiFi Logarithmic PotentiometersThey’re Exponential! Motor Driver Breakout BoardA BoB for a 5 A DC Motor Driver with a 3×3 mm Size From Life’s ExperienceHazardous Electronics Is Cellular the Lowest-Power Option for IoT?LTE-M and NB-IoT Energy Requirements in LPWAN Deployments Wireless Communication in IoT Systems – Using Arduino MKR ModulesThe Right Board for Wi-Fi, LoRa, and Many More Standards AC Losses in Magnetic ComponentsAvoid Hot Inductors! Measurement for Optimal Cloud Deployment Matter Adoption: What does it take to deploy Matter devices? YARD Stick OneA Sub-1 GHz Wireless Test Tool Latching RelaysPeculiar Parts, the Series PIC O’Clock – In Touch with TimeDesigning an SDR Time Signal Receiver Due Diligence DirectiveBusiness as Usual Will Not Do Starting Out in Electronics……Voltage Amplification Infrasound Recorder with the Arduino Pro MiniA Sample Project from Elektor’s “Arduino & Co.” Book Cloud-Based Energy MeterWith ESP32 Module and PZEM-004T Voltage/Current Sensor A Bare-Metal Programming Guide (Part 2)Accurate Timing, the UART, and Debugging Hexadoku

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