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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PbMonitor v2.0 UpdateBattery Monitoring with Improved Analog Design Audio Latency MeasurementA Standalone Tool for Evaluating Errors and Latency in Audio Transmission Square Wave vs. Bode PlotChecking the Performances of an Audio Device embedded world 2026 Clever Coding with AIAI in Software Development for Electronics Engineers QA403 Audio AnalyzerAffordable Precision for Audio Professionals and Hobbyists EasyGimbalAutonomous Camera Tracking with AI, Stepper and Servo Motors Sigfox Breakout Board (2)Sending Messages Circuit ProtectionControlling Overvoltages with TVS Diodes Emerging Battery Testing ApproachesA New Era of Diagnostics AudiotronicsA First Preamplifier CANopenTermAn Open-Source Tool That Brings CAN to Makers and Engineers Alike Stabilization of Operational AmplifiersAvoiding Feedback Instability Err-lectronicsCorrections, Updates, and Readers’ Letters Signal ConditioningTips and Tricks to Fit Voltage Ranges TDR Attachment for OscilloscopesLength, Short Circuit, Mismatch: Measure Cables Using Reflections! From Life's ExperienceLED It Be Speaker Oscillator and Resonance TesterA Fully Experimental Project for Your Speakers Elektor Community Perspectives on Test and Measurement ESP32 Audio Transceiver Board (Part 5)Audio Processing and Remote Control 2026: An AI OdysseyAI Has a Context Problem Battery Storage for Balcony Power PlantsSmall Batteries, Big Impact

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PbMonitor v2.0 UpdateBattery Monitoring with Improved Analog Design Audio Latency MeasurementA Standalone Tool for Evaluating Errors and Latency in Audio Transmission Square Wave vs. Bode PlotChecking the Performances of an Audio Device embedded world 2026 Clever Coding with AIAI in Software Development for Electronics Engineers QA403 Audio AnalyzerAffordable Precision for Audio Professionals and Hobbyists EasyGimbalAutonomous Camera Tracking with AI, Stepper and Servo Motors Sigfox Breakout Board (2)Sending Messages Circuit ProtectionControlling Overvoltages with TVS Diodes Emerging Battery Testing ApproachesA New Era of Diagnostics AudiotronicsA First Preamplifier CANopenTermAn Open-Source Tool That Brings CAN to Makers and Engineers Alike Stabilization of Operational AmplifiersAvoiding Feedback Instability Err-lectronicsCorrections, Updates, and Readers’ Letters Signal ConditioningTips and Tricks to Fit Voltage Ranges TDR Attachment for OscilloscopesLength, Short Circuit, Mismatch: Measure Cables Using Reflections! From Life's ExperienceLED It Be Speaker Oscillator and Resonance TesterA Fully Experimental Project for Your Speakers Elektor Community Perspectives on Test and Measurement ESP32 Audio Transceiver Board (Part 5)Audio Processing and Remote Control 2026: An AI OdysseyAI Has a Context Problem Battery Storage for Balcony Power PlantsSmall Batteries, Big Impact

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Diagnostic du véhicule avec OBD II (E-book)

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De mens is van nature uitgerust met sensoren voor geluid, licht, geur, smaak en gevoel. Zintuigen die met elektronica slechts ten dele gekopieerd kunnen worden. Met de Elektor sensorkit kunnen we wel aardig in de buurt komen. Sensoren kunnen elektronica aansturen, maar ze kunnen ons ook van informatie voorzien. Daarom vormt niet alleen het meten van grootheden, maar ook het zichtbaar maken ervan via de Arduino seriële monitor een niet onbelangrijk deel van dit boek. De microprocessor ATtiny85 die de Arduino-taal begrijpt, maakt het experimenteren met sensoren gemakkelijk en goedkoop. We zullen niet snel een Arduino-kaartje vast solderen in een permanente opstelling. Bij een achtpotige ATtiny zal dat geen schuldgevoel opleveren. Dat neemt niet weg dat alle sketches gewoon op elk Arduino-board draaien met mogelijk hier en daar een aanpassing van pennummers omdat die kunnen verschillen met reguliere Arduino-boards. We zullen uitgebreid aandacht besteden aan het programmeren van de ATtiny. Veel schakelingen zijn bruikbaar in het natuurkundepracticum op school of voor bedrijfsmatige toepassingen. Maar de nadruk ligt toch wel op de (beginnende) elektronicahobbyist die zijn vrije tijd op een leuke maar vooral ook nuttige manier wil besteden. Want meer dan ooit tevoren heeft techniek de toekomst.

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Program, build, and master over 50 projects with MicroPython and the RP2040 microprocessor The Raspberry Pi Pico is a high-performance microcontroller module designed especially for physical computing. Microcontrollers differ from single-board computers, like the Raspberry Pi 4, in not having an operating system. The Raspberry Pi Pico can be programmed to run a single task very efficiently within real-time control and monitoring applications requiring speed. The ‘Pico’ as we call it, is 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 its large memory, the Pico has even more attractive features including a vast number of GPIO pins, and popular interface modules like ADC, SPI, I²C, UART, and PWM. To cap it all, the chip offers fast and accurate timing modules, a hardware debug interface, and an internal temperature sensor. The Raspberry Pi Pico is easily programmed using popular high-level languages such as MicroPython and or C/C++. This book is an introduction to using the Raspberry Pi Pico microcontroller in conjunction with the MicroPython programming language. The Thonny development environment (IDE) is used in all the projects described. There are over 50 working and tested projects in the book, 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 temperature sensor chips Datalogging projects PWM, UART, I²C, and SPI projects Using Wi-Fi and apps to communicate with smartphones Using Bluetooth and apps to communicate with smartphones Digital-to-analogue converter (DAC) projects All projects given in the book have been fully tested and are working. Only basic programming and electronics experience is required to follow the projects. Brief descriptions, block diagrams, detailed circuit diagrams, and full MicroPython program listings are given for all projects described. Readers can find the program listings on the Elektor web page created to support the book.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Small Thermal Imaging CameraAn Arduino UNO-Based DIY Solution Project Update #3: ESP32-Based Energy MeterIntegration and Testing with Home Assistant 2024: An AI OdysseyEnhancing Object Detection: Integrating Refined Techniques Raspberry Pi Goes AINew Kit Incorporates M.2 HAT+ With AI Accelerator Weather Station SensorsWhich One Should You Choose? AI-Based Water Meter Reading (1)Get Your Old Meter Onto the IoT! A GSM AlarmHarnessing GSM Technology for Remote Garage Safety Low-Power Thread Devices Optimized and ScrutinizedLow Power … Low Effort? From Life’s ExperienceThe Gender Gap DIY Cloud ChamberMaking Invisible Radiation Visible SparkFun Thing Plus MatterA Versatile Matter-Based IoT Development Board IoT RetrofittingMaking RS-232 Devices Fit for Industry 4.0 Enabling IoT with 8-Bit MCUs Technology Drives SustainabilityAdvances Lead to More Efficient Use of Energy in Many Applications AWS for Arduino and Co. (1)Using AWS IoT ExpressLink in Real Life Airflow Detector Using Arduino OnlyNo External Sensors Needed! Water Leak DetectorConnected to Arduino Cloud CrystalsPeculiar Parts, the Series Universal Garden LoggerA Step Towards AI Gardening Analog 1 kHz GeneratorSine Waves with Low Distortion Miletus: Using Web Apps OfflineSystem and Device Access Included! From 4G to 5GIs It Such an Easy Step? Starting Out in Electronics……Balances Out

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A Practical Guide to AI, Python, and Hardware Projects Welcome to your BeagleY-AI journey! This compact, powerful, and affordable single-board computer is perfect for developers and hobbyists. With its dedicated 4 TOPS AI co-processor and a 1.4 GHz Quad-core Cortex-A53 CPU, the BeagleY-AI is equipped to handle both AI applications and real-time I/O tasks. Powered by the Texas Instruments AM67A processor, it offers DSPs, a 3D graphics unit, and video accelerators. Inside this handbook, you‘ll find over 50 hands-on projects that cover a wide range of topics—from basic circuits with LEDs and sensors to an AI-driven project. Each project is written in Python 3 and includes detailed explanations and full program listings to guide you. Whether you‘re a beginner or more advanced, you can follow these projects as they are or modify them to fit your own creative ideas. Here’s a glimpse of some exciting projects included in this handbook: Morse Code Exerciser with LED or BuzzerType a message and watch it come to life as an LED or buzzer translates your text into Morse code. Ultrasonic Distance MeasurementUse an ultrasonic sensor to measure distances and display the result in real time. Environmental Data Display & VisualizationCollect temperature, pressure, and humidity readings from the BME280 sensor, and display or plot them on a graphical interface. SPI – Voltmeter with ADCLearn how to measure voltage using an external ADC and display the results on your BeagleY-AI. GPS Coordinates DisplayTrack your location with a GPS module and view geographic coordinates on your screen. BeagleY-AI and Raspberry Pi 4 CommunicationDiscover how to make your BeagleY-AI and Raspberry Pi communicate over a serial link and exchange data. AI-Driven Object Detection with TensorFlow LiteSet up and run an object detection model using TensorFlow Lite on the BeagleY-AI platform, with complete hardware and software details provided.

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Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden. Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Kleine warmtebeeldcameraeen op Arduino UNO gebaseerde DHZ-oplossing Project-update #3: ESP32-gebaseerde energiemeterintegratie en test met Home Assistant 2024: een AI-odysseeobjectdetectie verbeteren met verfijnde technieken De Raspberry Pi gaat AInieuwe kit bevat M.2 HAT+ met AI-versneller Sensoren voor weerstationswat is de beste keuze? Lees uw analoge watermeter uit met AI (1)koppel uw oude watermeter met het IoT! GSM-alarmdraadloze garagebeveiliging Low-power Thread-devices geoptimaliseerd en onder de loep genomenweinig vermogen... weinig inspanning? Uit het leven gegrepende genderkloof Zelfbouw-nevelkamermaak onzichtbare straling zichtbaar SparkFun Thing Plus Mattereen veelzijdig Matter-gebaseerd IoT development board IoT-retrofittenRS232-apparaten klaarstomen voor Industry 4.0 Stimuleer het IoT met 8-bit MCU’s Technologie stimuleert duurzaamheidvooruitgang leidt in veel toepassingen tot efficiënter energiegebruik AWS voor Arduino en co. (1)AWS IoT ExpressLink in de praktijk Luchtstroomdetector met alleen een Arduinozonder externe sensoren! Lekdetectorverbonden met de Arduino-cloud Kristallenvreemde onderdelen Universele logger voor de tuinAI-tuinieren komt een stapje dichterbij Analoge 1kHz-generatorsinussen met geringe vervorming Miletus: webapps offline gebruikeninclusief toegang tot het systeem en het apparaat! Van 4G naar 5Gis het echt zo eenvoudig? Alle begin......gaat symmetrisch

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Mastering the I²C Bus takes you on an exploratory journey of the I²C Bus and its applications. Besides the Bus protocol, plenty of attention is given to the practical applications and designing a stable system. The most common I²C compatible chip classes are covered in detail. Two experimentation boards are available that allow for rapid prototype development. These boards are completed by a USB to I²C probe and a software framework to control I²C devices from your computer. All samples programs can be downloaded from the 'Attachments/Downloads' section on this page. Projects built on Board 1: USB to I²C Interface, PCA 9534 Protected Input, PCA 9534 Protected Output, PCA 9553 PWM LED Controller, 24xxx EEPROM Module, LM75 Temperature Sensor, PCA8563 Real-time Clock with Battery Backup, LCD and Keyboard Module, Bus Power Supply. Projects built on Board 2: Protected Input, Protected Output, LM75 Temperature Sensor, PCF8574 I/O Board, SAA1064 LED Display, PCA9544 Bus Expander, MCP40D17 Potentiometer, PCF8591 AD/DA, ADC121 A/D Converter, MCP4725 D/A Converter, 24xxx EEPROM Module.

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LoRa with the Raspberry Pi PicoFun with MicroPython What Is RISC-V?And Why the Industry Is So Excited About a New Processing Core! Elektor @ 60Circuits of Summer Past Versatile Power Supply for BreadboardsPositive and Negative Voltages Out of 5 V from USB Raspberry Pi Pico EssentialsSample Chapter: Wi-Fi with the Raspberry Pi Pico Magnetic Levitation the Easy Way Hands On the Parallax Propeller 2Part 3: Smart Pins and Serial Data (UART) Nucleo Boards Programming with the STM32CubeIDESample Chapter: FreeRTOS for the STM32 MCU Developer's ZoneTips & Tricks, Best Practices and Other Useful Information Miniware DT71 Digital Tweezers Wearable Wi-Fi Gadget: ESPHome Does the Job Again Starting out in ElectronicsEasier Than Imagined! This Concludes the Subject of “Capacitors” Simple Sketches Using the Qwiic Ecosystem Java on the Raspberry Pi (Part 2)Controlling GPIOs with a Spring REST Service Raspberry Pi Compute Module 4A Raspberry Pi for Industry Portable, Stand-Alone Air Quality Display for 2.5 µm ParticlesKeep(s) an Eye on Your Health From Life’s ExperienceThe Future Was Better in the Past MicroPython for the ESP32 and FriendsPart 1: Installation and Our First Programs Charge-Coupled Devices in OscilloscopesPeculiar Parts, the series ESD – The Invisible DestroyerComponents Trashed by a Bolt from the Blue Solar Power for Mowing RobotsEcological, Inexpensive, Simple! Europe’s Efforts to Tame Big Tech HexadokuThe Original Elektorized Sudoku

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Third, extended and revised edition with AVR Playground and Elektor Uno R4 Arduino boards have become hugely successful. They are simple to use and inexpensive. This book will not only familiarize you with the world of Arduino but it will also teach you how to program microcontrollers in general. In this book theory is put into practice on an Arduino board using the Arduino programming environment. Some hardware is developed too: a multi-purpose shield to build some of the experiments from the first 10 chapters on; the AVR Playground, a real Arduino-based microcontroller development board for comfortable application development, and the Elektor Uno R4, an Arduino Uno R3 on steroids. The author, an Elektor Expert, provides the reader with the basic theoretical knowledge necessary to program any microcontroller: inputs and outputs (analog and digital), interrupts, communication busses (RS-232, SPI, I²C, 1-wire, SMBus, etc.), timers, and much more. The programs and sketches presented in the book show how to use various common electronic components: matrix keyboards, displays (LED, alphanumeric and graphic color LCD), motors, sensors (temperature, pressure, humidity, sound, light, and infrared), rotary encoders, piezo buzzers, pushbuttons, relays, etc. This book will be your first book about microcontrollers with a happy ending! This book is for you if you are a beginner in microcontrollers, an Arduino user (hobbyist, tinkerer, artist, etc.) wishing to deepen your knowledge,an Electronics Graduate under Undergraduate student or a teacher looking for ideas. Thanks to Arduino the implementation of the presented concepts is simple and fun. Some of the proposed projects are very original: Money Game Misophone (a musical fork) Car GPS Scrambler Weather Station DCF77 Decoder Illegal Time Transmitter Infrared Remote Manipulator Annoying Sound Generator Italian Horn Alarm Overheating Detector PID Controller Data Logger SVG File Oscilloscope 6-Channel Voltmeter All projects and code examples in this book have been tried and tested on an Arduino Uno board. They should also work with the Arduino Mega and every other compatible board that exposes the Arduino shield extension connectors. Please note For this book, the author has designed a versatile printed circuit board that can be stacked on an Arduino board. The assembly can be used not only to try out many of the projects presented in this book but also allows for new exercises that in turn provide the opportunity to discover new techniques. Also available is a kit of parts including the PCB and all components. With this kit you can build most of the circuits described in the book and more. Datasheets Active Components Used (.PDF file): ATmega328 (Arduino Uno) ATmega2560 (Arduino Mega 2560) BC547 (bipolar transistor, chapters 7, 8, 9) BD139 (bipolar power transistor, chapter 10) BS170 (N-MOS transistor, chapter 8) DCF77 (receiver module, chapter 9) DS18B20 (temperature sensor, chapter 10) DS18S20 (temperature sensor, chapter 10) HP03S (pressure sensor, chapter 8) IRF630 (N-MOS power transistor, chapter 7) IRF9630 (P-MOS power transistor, chapter 7) LMC6464 (quad op-amp, chapter 7) MLX90614 (infrared sensor, chapter 10) SHT11 (humidity sensor, chapter 8) TS922 (dual op-amp, chapter 9) TSOP34836 (infrared receiver, chapter 9) TSOP1736 (infrared receiver, chapter 9) MPX4115 (analogue pressure sensor, chapter 11) MCCOG21605B6W-SPTLYI (I²C LCD, chapter 12) SST25VF016B (SPI EEPROM, chapter 13) About the author Clemens Valens, born in the Netherlands, lives in France since 1997. Manager at Elektor Labs and Webmaster of ElektorLabs, in love with electronics, he develops microcontroller systems for fun, and sometimes for his employer too. Polyglot—he is fluent in C, C++, PASCAL, BASIC and several assembler dialects—Clemens spends most of his time on his computer while his wife, their two children and two cats try to attract his attention (only the cats succeed). Visit the author’s website: www.polyvalens.com.Authentic testimony of Hervé M., one of the first readers of the book:'I almost cried with joy when this book made me understand things in only three sentences that seemed previously completely impenetrable.'

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La plateforme ROS la plus populaire au monde TurtleBot est le robot open source le plus populaire pour l'éducation et la recherche. La nouvelle génération de TurtleBot3 est un petit robot mobile, peu coûteux, entièrement programmable et basé sur ROS. Il est destiné à être utilisé pour l'éducation, la recherche, les loisirs et le prototypage de produits. Coût abordable TurtleBot a été développé pour répondre aux besoins économiques des écoles, des laboratoires et des entreprises. TurtleBot3 est le robot le plus abordable parmi les robots mobiles SLAM équipés d'un capteur de distance laser 360° LDS-01. Norme ROS La marque TurtleBot est gérée par Open Robotics, qui développe et maintient ROS. Aujourd'hui, ROS est devenu la plateforme de référence pour tous les roboticiens du monde. TurtleBot peut être intégré à des composants robotiques existants basés sur ROS, mais TurtleBot3 peut être une plateforme abordable pour ceux qui veulent commencer à apprendre ROS. Extensibilité TurtleBot3 encourage les utilisateurs à personnaliser sa structure mécanique à l'aide d'options alternatives : carte embarquée open source (en tant que carte de contrôle), ordinateur et capteurs. TurtleBot3 Waffle Pi est une plate-forme à deux roues à entraînement différentiel, mais sa structure et sa mécanique peuvent être personnalisées de nombreuses façons : voitures, vélos, remorques, etc. Développez vos idées au-delà de l'imagination avec différents SBC, capteurs et moteurs sur une structure évolutive. Actionneur modulaire pour robot mobile TurtleBot3 est capable d'obtenir des données spatiales précises en utilisant 2 DYNAMIXEL dans les articulations des roues. Les DYNAMIXEL de la série XM peuvent être utilisés selon l'un des 6 modes de fonctionnement (série XL : 4 modes de fonctionnement) : Mode de contrôle de la vitesse pour les roues, mode de contrôle du couple ou mode de contrôle de la position pour les articulations, etc. DYNAMIXEL peut même être utilisé pour fabriquer un manipulateur mobile qui est léger mais qui peut être contrôlé avec précision grâce au contrôle de la vitesse, du couple et de la position. DYNAMIXEL est un composant c?ur qui rend TurtleBot3 parfait. Il est facile à assembler, à entretenir, à remplacer et à reconfigurer. Carte de contrôle ouverte pour ROS La carte de contrôle est open-source au niveau du matériel et du logiciel pour la communication ROS. La carte de contrôle OpenCR1.0 est suffisamment puissante pour contrôler non seulement les capteurs DYNAMIXEL mais aussi les capteurs ROBOTIS qui sont fréquemment utilisés pour des tâches de reconnaissance de base de manière rentable. Différents capteurs tels que les capteurs tactiles, les capteurs infrarouges, les capteurs de couleur et bien d'autres sont disponibles. L'OpenCR1.0 possède un capteur IMU à l'intérieur de la carte afin d'améliorer la précision du contrôle pour d'innombrables applications. La carte dispose d'alimentations de 3,3 V, 5 V et 12 V pour renforcer les gammes d'appareils informatiques disponibles. Source ouverte Le matériel, le micrologiciel et le logiciel de TurtleBot3 sont des logiciels libres, ce qui signifie que les utilisateurs sont invités à télécharger, modifier et partager les codes sources. Tous les composants de TurtleBot3 sont fabriqués en plastique moulé par injection afin de réduire les coûts, mais les données de CAO 3D sont également disponibles pour l'impression 3D. Spécifications Vitesse de translation maximale 0.26 m/s Vitesse de rotation maximale 1.82 rad/s (104.27 deg/s) Charge utile maximale 30 kg Taille (L x L x H) 281 x 306 x 141 mm Poids (+ SBC + batterie + capteurs) 1.8 kg Seuil de montée Max 10 mm Durée d'utilisation prévue 2 h Temps de charge prévu 2 h 30 m SBC (ordinateur à carte unique) Raspberry Pi 4 (2 Go RAM) MCU 32-bit ARM Cortex-M7 with FPU (216 MHz, 462 DMIPS) Contrôleur à distance RC-100B + BT-410 Set (Bluetooth 4, BLE) Actionneur XL430-W210 LDS (capteur de distance laser) 360 Laser Distance Sensor LDS-01 or LDS-02 Caméra Raspberry Pi Camera Module v2.1 IMU Gyroscope 3 axesAccelerometer 3 axes Connecteurs d'alimentation 3.3 V/800 mA5 V/4 A12 V/1 A Connecteurs d'extension GPIO 18 brochesArduino 32 broches Périphériques 3x UART, 1x bus CAN, 1x SPI, 1x I²C, 5x CAN, 4x 5-pin OLLO Ports DYNAMIXEL 3x RS485, 3x TTL Audio Plusieurs séquences programmables LED programmables 4x User LED LED d'état 1x Board status LED1x Arduino LED1x Power LED Boutons et interrupteurs 2x boutton poussoir, 1x bouton Reset, 2x DIPswitch Batterie Lithium polymer 11.1 V 1800 mAh / 19.98 Wh 5C Connexion PC USB Mise à jour du micrologiciel par USB / par JTAG Adaptateur d'alimentation (SMPS) Entrée: 100-240 VCA 50/60 Hz, 1.5 A @maxSortie: 12 VCC, 5 A Téléchargements Programmation de robots ROS GitHub Manuel électronique Communauté  

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