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Affordable solutions with the ESP8266 and 3D printing If you are looking for a small yet powerful IoT device, you are likely to come across the ESP8266 and compatible products on the market today. One of these, the Wemos/Lolin D1 Mini Pro board strikes a remarkable balance between cost and performance. A small and very affordable prototype board, the D1 Mini Pro stands out with its WiFi functionality and a 16-Mbytes flash memory for easy creation of a flash file system. In addition, there are sufficient input and output pins (only one analog input though) to support PWM, I²C, and One-Wire systems to mention but a few. The book describes the operation, modding, construction, and programming of home appliances including a colorful smart home accessory, a refrigerator/greenhouse controller, an AC powerline monitor, a door lock monitor, and an IKEA Trådfri controller. As a benefit, all firmware developed for these DIY, "IoT-ized" devices can be updated over-the-air (OTA). For most of the designs in the book, a small printed circuit board (PCB) and an enclosure are presented so readers can have a finished and attractive-looking product. Readers having – or with access to! – a 3D printer can "print" the suggested enclosures at home or in a shop. Some of the constructions benefit from a Raspberry Pi configured as a gateway or cms server. This is also described in detail with all the necessary configuring. You don’t need to be an expert but the prerequisites to successful replication of the projects include basic skills with PC software including the ability to surf the Internet. In terms of hardware, you should be comfortable with soldering and generally assembling the PCBs presented in the book. All custom software written for the IoT devices, the PCB layouts, and 3D print files described in the book are available for free downloading.

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Elektor GREEN- und GOLD-Mitglieder können diese Ausgabe hier herunterladen. Noch kein Mitglied? Klicken Sie hier , um eine Mitgliedschaft abzuschließen. Mini-Solarstromversorgung Sonne rein, 3,3 V raus Solid-State-Stereo-Audioschalter klickfrei und ohne bewegliche Teile Große RGB-Ziffer mit durchkontaktierten WS2812-LEDs Mikrofonvorverstärker mit 48V Phantomspeisung für Podcasting und Pro-Audio Rechteckgeneratoren mit einstellbarem Arbeitszyklus und Frequenz einfache Schaltungen mit CMOS- und TTL-ICs Einfacher Dynamikkompressor Sanfte Kontrolle, warmer Klang Einfaches elektronisches Schloss Aktiver Gleichrichter für 2...40 V bei maximal 3 A mit Rückstromunterdrückung Aktive Boxen aktivieren und deaktivieren Unsymmetrischer/symmetrischer Wandler mit HF-Filter und DC-Schutz 2023: eine KI-Odyssee Woher kommt es und wohin geht es? Lüftergeschwindigkeitsregler mit manuellem und Thermostatmodus Aktuelle Nachrichten vom Arduino Project Hub neue Projekte aus der Community Überlastüberwachung überwacht Netzkabel Transistorloses Blinklicht im Dunkeln Oszillator mit nur Zweidrahtteilen Morsecode-Generator zur Verwendung als Leuchtfeuer oder Lehrmittel! Programmierbarer Video-DAC für jedes Format bis RGB888 Kleine Tastatur ohne bewegliche Teile Doppelwürfel ohne Mikroprozessor Doppelstanze auf einem einzigen Druck – plus einige Design-Tricks Elektronische Vogelscheuche Amüsante, inspirierende und erstaunliche Strecken LC/LP/HA-Thermometer genaue Messungen und eine binäre Anzeige THD-Generator Verzerrung, aber beabsichtigt Übertemperaturanzeige mit Thyristor Elektronische Teile werden ungewöhnlich verwendet Ein PTC-Flip-Flop Sozialer Vogel ein zwitschernder Elektor-Klassiker Neonlampe plus Mikrocontroller Temperaturstabilisierte IC-Stromquelle neutralisieren den Temperaturdrift dieser Dreibeiner Einstellbarer Höhenverstärker zweiter Ordnung Hörgerät für ältere Menschen Edwin kommt nach Hause Erinnerungen nach 53 Jahren Einarmiger Bandit ein einfacher, lustiger, nostalgischer und lehrreicher Elektor-Klassiker! Einfacher digital gesteuerter variabler Widerstand Lecksucher schützt und alarmiert bei Undichtigkeiten Öko-Timer mit automatischer Abschaltung Verbraucht im ausgeschalteten Zustand nichts! ChatGPT und Arduino Zener-Meter misst die Z-Spannung von Z-Dioden ≤ 100 V Servotester ESP32-Windows-Controller mit kostenloser Software Analoge und Mixed-Signal-ICs von Microchip wirtschaftliche Signalverarbeitung Schnittstellenstandards Filter- und Überspannungsschutz für den I²C-Bus Li-Ion-Batteriemonitor Die Restladeanzeige gibt visuelles Feedback PS/2-Maus als Drehgeber (und mehr...) Einfacher Dämmerungsschalter für bestehende Lampen oder Installationen Controller für Wasserpumpe Bereiten Sie sich auf Hochwasser vor Weihnachtskugel mit FM-Solarradio Das ist alles, was Sie zu Weihnachten brauchen Vibrationssensor mit Relais Zum Einschalten tippen oder schütteln Durchgangsprüfer empfindlich und nicht störend Ein- und Ausschalten per Druckknopf Mini-Bohrprogramm (2023) Überarbeitung eines Entwurfs aus dem Jahr 1980 Digitaler Vibrationssensor wandelt Vibrationen in präzise getimte Impulse um Verpolungsschutz mit geringem Spannungsabfall Günstiger Frequenzstandard Kleiner DCF77-Simulator genauer gefälschter Zeitstandard Der Lilygo T-PicoC3 kombiniert RP2040 und ESP32-C3 mit einem Vollfarb-TFT-Display Hexadoku

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Programming with GNU Radio HackRF is an open-source hardware platform developed by Great Scott Gadgets and serves as a versatile front end for software-defined radio (SDR). With HackRF One and its successor, HackRF Pro, users can develop their own SDR applications, build powerful receivers and transmitters, and tackle demanding RF measurement tasks. This book provides a practical introduction to the world of SDR. Step by step, the author shows how powerful SDR projects can be implemented with HackRF – from the fundamentals of RF technology to advanced applications using GNU Radio. In addition to working with SDR Sharp (SDR#), RadioConda, and GNU Radio, the book also covers the fundamentals of modern digital signal processing. Numerous experiments and easy-to-follow practical examples guide readers through topics such as AM, FM, and SSB reception, digital filters, shortwave radio, amateur radio, signal generators, and custom RF projects up to 6 GHz. Whether you are a maker, radio amateur, electronics enthusiast, or SDR beginner, this book provides solid knowledge, practical applications, and the motivation to creatively explore the possibilities of modern SDR technology.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Project Update: ESP32-Based Energy MeterNext Steps in Prototyping Optimizing Balcony Power PlantsConsiderations, Interesting Facts, and Calculations ESP32 With OpenDTU for Balcony Power PlantsRead Data from Small Inverters Via MCUs Variable Linear Power Supply Ensemble0…50 V / 0…2 A + Dual Symmetrical Supply Energy Storage Today and TomorrowAn Interview With Simon Engelke 2024: An AI OdysseyIt’s Not Letting Up Bluetooth LE on the STM32A Way to Read Measurements Remotely Human-Centric Smart Kitchen Grocery Container MAUI: Programming for PC, Tablet, and SmartphoneThe New Framework in Theory and Practice ChatMagLevThe AI Way of Levitation Simple PV Power RegulatorBuild Your First, Fully Functional PV Energy Management System Cold-Cathode DevicesPeculiar Parts, the Series From Life’s ExperienceNostalgia Starting Out in Electronics……Looking at FETs CAN Bus Tutorial for the Arduino UNO R4Two UNO R4s Hop on the Bus! Infographics: Power & Energy Comprehensive Design and Development SupportArrow Engineering Services Comparing Power Density and Power Efficiency Aluminium Electrolytic CapacitorsInterference Potential in Audio Technology USB Test and MeasurementThe Fnirsi FNB58 The Pixel Pump Pick-and-Place ToolSimplifying Manual SMT Board Assembly HomeLab ToursNot So Long Ago, in a Far-Away Country... “In the world of ethics in electronics, even small steps can make a significant impact.” Ethics in ElectronicsThe OECD Guidelines and Germany’s Supply Chain Due Diligence Act Chadèche: Smart Ni-MH Charger/DischargerA Reader’s Project in Brief Err-lectronicsCorrections, Updates and Readers’ Letters

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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. PIO programmeren op de Raspberry Pi PicoNegen instructies, veel mogelijkheden AI buiten de browser brengenAI-CLI's gebruiken voor het coderen, compileren en valideren van embedded projecten De Scrutiny DebuggerDebuggen, visualiseren en testen van code in Embedded C/C++ Sigfox breakout board (1)Een zelfgebouwde radio BoB Low-Noise voeding (2)Constructie, montage en praktische implementatie Eenvoudige signaalgenerator met de RP2040Analoge en digitale signalen voor ongeveer €10 De toekomst van slimme huizen verkennen met Matter en Edge AIBieden de nieuwste updates van Matter en de opkomst van Edge AI technici eindelijk de tools om de intelligente, slimme huizen te bouwen die gebruikers zijn beloofd? Differentiële druksensorenVoorspellend onderhoud in HVAC-systemen Security by designTechnische basisprincipes beperken storingen Embedded security is niet langer optioneel CRA en PQC herzien prioriteiten voor embedded securityWaarom zelfs kleine IoT- en industriële bedrijven een upgradeplan nodig hebben embedded world 2026Een interview met Benedikt Weyerer, Executive Director embedded world Praktijkervaring met I3CGebruik van hardware van ST en Microchip Het BLEnky-projectSnelle prototyping voor Bluetooth Low Energy toepassingen Pulsbreedtemodulatievan een eenvoudige aan/uit-thermostaat naar een rimpelloos DC-signaal AudiotronicaOorstrelende elektronica voor zelfbouw Uit het leven gegrepenRead the f...ing manual! ESP32 audio transceiver board (Deel 4)Afstemmen van de kloksignalen en een bekabelde versie 2026: An AI OdysseyDe kater van Vibe-Coding in 2025 Symmetrische DC-belastingStatische of dynamische en symmetrische gelijkstroombelasting Gezichten tellen met MaixCAMEen eenvoudige methode om de omvang van het publiek vast te leggen

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Elektor GREEN- und GOLD-Mitglieder können diese Ausgabe hier herunterladen. Noch kein Mitglied? Klicken Sie hier , um eine Mitgliedschaft abzuschließen. Projektaktualisierung: ESP32-basierter Energiezähler Weiter geht es mit dem Prototyp Optimierung von Balkon-PV-Kraftwerken Überlegungen, interessante Fakten und Berechnungen ESP32 mit OpenDTU für Balkonbedienfelder Lesen Sie Daten von kleinen Wechselrichtern über MCUs Einstellbares lineares Labornetzteil 0...50 V / 0...2 A + doppelt symmetrische Stromversorgung Energiespeicher – heute und morgen ein Interview mit Simon Engelke 2024: eine KI-Odyssee es wird nicht so schnell enden Bluetooth LE auf dem STM32 Messwerte aus der Ferne ablesen Menschenfreundliches intelligentes Kücheninventarsystem MAUI: Programmierung für PC, Tablet und Smartphone die neuen Rahmenbedingungen in Theorie und Praxis ChatMagLev künstliche intelligente Levitation Einfacher PV-Controller Bauen Sie Ihr erstes, voll funktionsfähiges PV-Energiemanagementsystem Kaltkathodenröhren Fremde Aus dem Leben genommen Nostalgie Aller Anfang... ...sieht sich den FET an CAN-Bus für den Arduino UNO R4: ein Tutorial Zwei UNO R4 fahren mit dem Bus! Elektor-Infografik Ernährung und Energie Vergleich von Leistungsdichte und Leistungseffizienz Aluminium-Elektrolytkondensatoren Störpotenzial in der Audiotechnik USB-Prüfung und -Messung mit dem Fnirsi FNB58 Das Pick-and-Place-Tool von Pixel Pump einfachere manuelle Bestückung von SMT-Platinen East West Lab Best Vor nicht allzu langer Zeit, in einem sehr weit entfernten Land ... „In der Welt der Elektronikethik können selbst kleine Schritte große Auswirkungen haben.“ Ethik in der Elektronik den OECD-Leitsätzen und dem Lieferkettensorgfaltspflichtgesetz Chadèche: intelligentes NiMH-(Ent-)Ladegerät Leserprojekt in Kürze Projekt 2.0 Korrekturen, Aktualisierungen und Leserbriefe

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The Vision and Engineering Behind SparkFun Getting Started with MicroMod Leveling Up Your SparkFun JetBotHow I Expanded the Functionality of My JetBot, Powered by the NVIDIA Jetson Nano Programming an FPGA How to Build a DIY GNSS Reference Station The ClockClock Project Under the Hood: SparkFun Inventor's Kit SparkFun’s Glenn Samala on Product Development and New Ventures Creating Custom Circuit Boards with SparkFun À La Carte Designing with the SparkFun Artemis Getting Started with the Qwiic Ecosystem for Rapid Prototyping Poster - Qwiic Under the Hood: The GreatScott! / Elektor DIY LiPo Supercharger Kit Memorable Electronics from SparkFun Past Perfect Parking with LiDAR Buried Pad PCB Fixing Design to Sale: the SparkFun RTK Surveyor Hello World from the Raspberry Pi Pico and RP2040A Look at Raspberry Pi’s First Microcontroller and Microcontroller Chip DIY Quadrupedal Robots Poster - Micromod RISC-V IoT Development in AWS Using FreeRTOS Libraries Yep, Electronics = Fun!A Conversation Among Electronics Enthusiasts Sparkfun Product Catalog HexadokuThe Original Elektorized Sudoku

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Projects with Arduino, ESPHome, Home Assistant, and Raspberry Pi & Co. This e-book contains various example projects, beginning with an introduction to electronics. It also explains how to install Home Assistant on a Raspberry Pi, how to use indoor climate sensors for temperature and humidity, how to implement the MQTT protocol and other interfaces, and how to use ESPHome to integrate sensors and actuators into Home Assistant. Numerous video tutorials complement the book. Fundamentals of electrical engineering The book begins with an introduction to electrical engineering. You will learn the basics of voltage, current, resistors, diodes and transistors. Arduino and microcontrollers A complete section is dedicated to the Arduino Uno. You will get to know the structure, write your first programs and work on practical examples. Home Assistant and automation You will learn how to set up Home Assistant on a Raspberry Pi and how to use automations, scenes and devices. In addition, Zigbee, MQTT and ESP-NOW – important technologies for home automation – will be discussed. ESP8266, ESP32 and ESP32-CAM The popular ESP microcontrollers are covered in detail. A theoretical introduction is followed by practical projects that show you how to get the most out of these devices. Sensors and actuators The book explains the functionality and application of numerous sensors such as temperature and humidity sensors, motion detectors and RFID readers. For actuators, stepper motors, e-ink displays, servo motors and much more are covered. There are practical application examples for all devices. ESPHome This chapter shows you how to integrate sensors and actuators into Home Assistant without any programming effort. You will be guided step by step through the setup with ESPHome. LEDs and lighting technology In this chapter, you will learn about different types of LEDs and how they can be used. The basics of lighting technology are also explained. Node-RED A whole chapter is dedicated to Node-RED. You will learn the basics of this powerful tool and be guided step by step through its setup and use. Integrated Circuits (ICs) In electronics, there are numerous ICs that make our lives easier. You will get to know the most important ones and apply your knowledge in practical projects. Professional programming Advanced topics such as the correct use of buttons, the use of interrupts and the use of an NTP server for time synchronisation are covered in detail in this chapter. Downloads GitHub

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The Internet of Things is rapidly gaining interest, and that has fueled the development of the Edison. A tiny computer, the size of a postage stamp, with a lot of power and built-in wireless communication capabilities. In this eBook we will help you get up-to-speed with the Edison, by installing the software both on the Edison as well as on your Windows PC. We will use the Edison Arduino break-out board because it is easy to work with. We will discuss Linux, Arduino C++ and Python, and show examples of how the Edison can interface with other hardware. We will use Wi-Fi and Bluetooth to set up wireless connections, and show you a trick to program sketches over Wi-Fi. Once you have completed this book your Edison will be up and running with the latest software version, and you will have sufficient knowledge of both hardware and software to start making your own applications. You will even be able to program the Edison over USB and wireless both in Arduino C++ and Python. This is not a projects eBook, but a toolbox that will allow you to explore the wonderful world of the Intel Edison!

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Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4x4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4x4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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It is becoming important for microcontroller users to quickly learn and adapt to new technologies and architecture used in high performance 32-bit microcontrollers. Many manufacturers now offer 32-bit microcontrollers as general purpose processors in embedded applications. ARM provide 32 and 64-bit processors mainly for embedded applications. These days, the majority of mobile devices including mobile phones, tablets, and GPS receivers are based on ARM technology. The low cost, low power consumption, and high performance of ARM processors makes them ideal for use in complex communication and mixed signal applications. This book makes use of the ARM Cortex-M family of processors in easy-to-follow, practical projects. It gives a detailed introduction to the architecture of the Cortex-M family. Examples of popular hardware and software development kits are described. The architecture of the highly popular ARM Cortex-M processor STM32F107VCT6 is described at a high level, taking into consideration its clock mechanisms, general input/output ports, interrupt sources, ADC and DAC converters, timer facilities, and more. The information provided here should act as a basis for most readers to start using and programming the STM32F107VCT6 microcontroller together with a development kit. Furthermore, the use of the mikroC Pro for ARM integrated development environment (IDE) has been described in detail. This IDE includes everything required to create a project; namely an editor, compiler, simulator, debugger, and device programmer. Although the book is based on the STM32F107VCT6 microcontroller, readers should not find it difficult to follow the projects using other ARM processor family members.

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