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The Elektor ESP32 Energy Meter is a device designed for real-time energy monitoring and smart home integration. Powered by the ESP32-S3 microcontroller, it offers robust performance with modular and scalable features. The device uses a 110/230 VAC to 12 VAC step-down transformer for voltage sampling, ensuring galvanic isolation and safety. Its compact PCB layout includes screw-type terminal blocks for secure connections, a Qwiic connector for additional sensors, and a programming header for direct ESP32-S3 configuration. The energy meter is compatible with single-phase and three-phase systems, making it adaptable for various applications. The energy meter is simple to set up and integrates with Home Assistant, offering real-time monitoring, historical analytics, and automation capabilities. It provides accurate measurements of voltage, current, and power, making it a valuable tool for energy management in homes and businesses. Features Comprehensive Energy Monitoring: Get detailed insights into your energy usage for smarter management and cost savings. Customizable Software: Tailor functionality to your needs by programming and integrating custom sensors. Smart Home Ready: Compatible with ESPHome, Home Assistant, and MQTT for full Smart Home integration. Safe & Flexible Design: Operates with a 110/230 VAC to 12 VAC step-down transformer and features a pre-assembled SMD board. Quick Start: Includes one Current Transformer (CT) sensor and access to free setup resources. Specifications Microcontroller ESP32-S3-WROOM-1-N8R2 Energy Metering IC ATM90E32AS Status Indicators 4x LEDs for power consumption indication2x Programmable LEDs for custom status notifications User Input 2x Push buttons for user control Display Output I²C OLED display for real-time power consumption visualization Input Voltage 12~16 VAC (via a step-down transformer 110/230 VAC to 12 VAC) Clamp Current Sensor YHDC SCT013-000 (100 A/50 mA) included Smart Home Integration ESPHome, Home Assistant, and MQTT for seamless connectivity Connectivity Header for programming, Qwiic for sensor expansion Applications Supports single-phase and three-phase energy monitoring systems Dimensions 79.5 x 79.5 mm Included 1x Partly assembled board (SMDs are pre-mounted) 2x Screw terminal block connectors (not mounted) 1x YHDC SCT013-000 current transformer Required Power transformer not included Downloads Datasheet (ESP32-S3-WROOM-1) Datasheet (ATM90E32AS) Datasheet (SCT013-000) Frequently Asked Questions (FAQ) From Prototype to Finished Product What started as an innovative project to create a reliable and user-friendly energy meter using the ESP32-S3 microcontroller has evolved into a robust product. Initially developed as an open-source project, the ESP32 Energy Meter aimed to provide precise energy monitoring, smart home integration and more. Through meticulous hardware and firmware development, the energy meter now stands as a compact, versatile solution for energy management.

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Kick off to FPGA Programming with the MAX1000 Board and VHDPlus Ready to master FPGA programming? With this bundle, you'll dive into the world of Field-Programmable Gate Arrays (FPGAs) – a configurable integrated circuit that can be programmed after manufacturing. Bring your ideas to life, from simple projects to complete microcontroller systems! The MAX1000 is a compact and powerful FPGA development board packed with features like memory, user LEDs, push-buttons, and flexible I/O ports. It’s the ideal starting point for anyone wanting to learn about FPGAs and Hardware Description Languages (HDLs). With the enclosed book "FPGA Programming and Hardware Essentials" you'll get hands-on with the VHDPlus programming language – a simpler version of VHDL. You'll work on practical projects using the MAX1000, helping you gain the skills and confidence to unleash your creativity. Projects in the Book Arduino-driven BCD to 7-Segment Display Decoder Use an Arduino Uno R4 to supply BCD data to the decoder, counting from 0 to 9 with a one-second delay Multiplexed 4-Digit Event Counter Create an event counter that displays the total count on a 4-digit display, incrementing with each button press PWM Waveform with Fixed Duty Cycle Generate a PWM waveform at 1 kHz with a fixed duty cycle of 50% Ultrasonic Distance Measurement Measure distances using an ultrasonic sensor, displaying the results on a 4-digit 7-segment LED Electronic Lock Build a simple electronic lock using combinational logic gates with push buttons and an LED output Temperature Sensor Monitor ambient temperature with a TMP36 sensor and display the readings on a 7-segment LED MAX1000 FPGA Development Board The MAX1000 is a customizable IoT/Maker Board ready for evaluation, development and/or use in a product. It is built around the Intel MAX10 FPGA, which is the industry’s first single chip, non-volatile programmable logic device (PLDs) to integrate the optimal set of system components. Users can now leverage the power of tremendous re-configurability paired with a high-performance, low-power FPGA system. Providing internally stored dual images with self-configuration, comprehensive design protection features, integrated ADCs and hardware to implement the Nios II 32-bit microcontroller IP, MAX10 devices are ideal solution for system management, protocol bridging, communication control planes, industrial, automotive and consumer applications. The MAX1000 is equipped with an Arrow USB Programmer2, SDRAM, flash memory, accelerometer sensor and PMOD/Arduino MKR connectors making it a fully featured plug and play solution without any additional costs. Specifications MAX 10 8 kLE - Flash Dual inside - ADC 8x 12 Bit - Temperature Range 0~85°C - Supply USB/pins SDRAM 8 MB 3-axis MEMS LIS3DH USB Programmer on board MEMS Oscillator 12 MHz Switch/LED 2x / 8x Contents of the Bundle Book: FPGA Programming and Hardware Essentials (normal price: €40) MAX1000 FPGA Development Board (normal price: €45) Downloads Software

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New Version available! Click here! HackRF One is a Software Defined Radio (SDR) peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz. Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation. Specifications 1 MHz to 6 GHz operating frequency Half-duplex transceiver Up to 20 million samples per second 8-bit quadrature samples (8-bit I and 8-bit Q) Compatible with GNU Radio, SDR and more Software-configurable RX and TX gain and baseband filter Software-controlled antenna port power (50 mA at 3.3 V) SMA female antenna connector SMA female clock input and output for synchronization Convenient buttons for programming Internal pin headers for expansion Hi-Speed USB 2.0 USB-powered Open source hardware HackRF One is test equipment for RF systems. It has not been tested for compliance with regulations governing transmission of radio signals. You are responsible for using your HackRF One legally. Included 1x HackRF One SDR 1x Plastic enclosure 1x micro-USB cable Note: An antenna is not included. ANT500 is recommended as a starter antenna for HackRF One. Downloads Documentation GitHub Source code and hardware design files

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This bundle includes both volumes of "KiCad Like a Pro" (4th edition 2024). In Fundamentals and Projects (normal price: €49.95), you'll learn how to use KiCad through a practical approach, helping you quickly become productive and start designing your own boards. Advanced Projects and Recipes (normal price: €44.95) allows you to practice your new KiCad skills by challenging yourself with a series of real-world projects. The latest iteration of KiCad, the world’s best free-to-use Printed Circuit Board tool, is packed with features usually found only in expensive commercial CAD tools. This modern, cross-platform application suite built around schematic and design editors, with auxiliary applications is a stable and mature PCB tool. KiCad 8 is a perfect fit for electronic engineers and makers. Here are the most significant improvements and features in KiCad 8, both over and under the hood: Modern user interface, completely redesigned from earlier versions Improved and customizable electrical and design rule checkers Theme editor allowing you to customize KiCad on your screen Ability to import projects from Eagle, CADSTART, and more Python scripting API Improved integrated SPICE circuit simulator Multi-sheet schematics Filters define selectable elements Enhanced interactive router helps you draw single tracks and differential pairs with precision New or enhanced tools to draw tracks, measure distances, tune track lengths, etc. Advanced interactive router Built-in bill of materials generator Realistic ray-tracing capable 3D viewer Customizable teardrops Plug-in manager for quick installation of themes, libraries and functionalities such as autorouters and BOM generators The first book KiCad Like A Pro – Fundamentals and Projects will teach you to use KiCad through a practical approach. It will help you become productive quickly and start designing your own boards. Example projects illustrate the basic features of KiCad, even if you have no prior knowledge of PCB design. The author describes the entire workflow from schematic entry to the intricacies of finalizing the files for PCB production and offers sound guidance on the process. The second book KiCad Like A Pro – Advanced Projects and Recipes will help you to practice your new KiCad skills by challenging you in a series of real-world projects. The projects are supported by a comprehensive set of recipes with detailed instructions on how to achieve a variety of simple and complex tasks. Design the PCBs for a solar power supply, an LED matrix array, an Arduino-powered datalogger, and a custom ESP32 board. Understand the finer details of the interactive router, how to manage KiCad project teams with Git, how to use an autorouter on 2 and 4-layer PCBs, and much more.

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Diese Ausgabe steht allen GOLD- und GREEN-Mitgliedern auf der ElektorMagazine-Website zum Download bereit! Sie sind noch kein Mitglied? Hier klicken! ESP32-Audio-Transceiver-Board (Teil 2)Drahtlose Audioübertragung Induktiver AM-SenderPIO des Pico in einem Arduino-Sketch Navigieren durch drahtlose ProtokolleEin technischer Leitfaden Satellitenverfolgung mit LoRaDas TinyGS-Netzwerk: Raumfahrtdaten gelangen zur Erde 4G-kompatible SMS-FernbedienungSteuern Sie Ihr Zuhause per Telefon aus der Ferne Hochgeschwindigkeits-TastkopfHochohmige Eingänge für Signale bis 200 MHz Aus dem Leben gegriffenKafka KrakenSDREin phasenkohärenter SDR-Empfänger Geschwindigkeitstests mit dem RP2350Lohnt sich der Umstieg von Raspberry Pi Pico 1 auf Version 2? Kontaktlose E-Feld-Messungen (2)Ein Laser-Vibrometer zur Erfassung der Membranschwingungen Quarze und OszillatorenQuarzgenauigkeit durch die Kondensatorwahl verbessern Aller Anfang ...... ist gar nicht schwer: Spezielle Audio-ICs Einstieg ins Programmieren von Selbstbauprojekten SPECTRAN® V6 MobileModular konfigurierbarer Echtzeit-Spektrum-Analyzer für zuverlässige Messungen in allen Frequenzbereichen Die Zukunft der KI wird in Silizium geschmiedetEin Interview mit Anastasiia Nosova Autonomer Sensorknoten v2.0 (Systemarchitektur)Solarbetriebene Sensorplattform mit integriertem GPS, LoRaWAN und weiteren Funktionen Präzise PositionsbestimmungBluetooth Channel Sounding ausprobiert Die Zukunft der Wireless-KommunikationDie ultradünnen Festkörperbatterien von BTRY Testgetriebene Programmierung in der Firmware-Entwicklung Handy-gesteuertes ModellautoWLAN + ESP32 + Smartphone = Fernsteuerung 2025: Eine KI-OdysseeKI-Denkmodelle: die Gedankenketten-Revolution Solarladeregler mit MPP-TrackingTeil 3: Software und Inbetriebnahme Web-Streaming-Kamera mit Raspberry Pi ZeroVerwendung des ZeroTier-VPN

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Mastering PCB design with real-world projects This book builts on KiCad Like a Pro – Fundamentals and Projects and aims to help you practice your new KiCad skills by challenging you in a series of real-world projects. The projects are supported by a comprehensive set of recipes with detailed instructions on how to achieve a variety of simple and complex tasks. Design the PCBs for a solar power supply, an LED matrix array, an Arduino-powered datalogger, and a custom ESP32 board. Understand the finer details of the interactive router, how to manage KiCad project teams with Git, how to use an autorouter on 2 and 4-layer PCBs, and much more. KiCad 8 is a modern, cross-platform application suite built around schematic and design editors. This stable and mature PCB tool is a perfect fit for electronic engineers and makers. With KiCad 8, you can create PCBs of any complexity and size without the constraints associated with the commercial packages. Here are the most significant improvements and features in KiCad 8, both over and under the hood: Modern user interface, completely redesigned from earlier versions Improved and customizable electrical and design rule checkers Theme editor allowing you to fully customize the look of KiCad on your screen Ability to import projects from Eagle, CADSTART, and more An improved and tightly integrated SPICE circuit simulator Autorouting with the Freerouting plugin Filters define which elements of a layout are selectable Enhanced interactive router helps you draw single tracks and differential pairs with precision New or enhanced tools to draw tracks, measure distances, tune track lengths, etc. Enhanced tool for creating filled zones A customizable coordinate system facilitates data exchange with other CAD applications Realistic ray-tracing capable 3D viewer Differential pair routing Rich repositories of symbol, footprint, and 3D shape libraries Python scripting API for programmatic customization and extensions Improved footprint wizard for fast custom footprints

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Program and build Raspberry Pi based ham station utilities, tools, and instruments The improved RTL-SDR V4 allows you to receive radio signals between 500 kHz and 1.75 GHz from stations utilizing different bands including MW/SW/LW broadcast, ham radio, utility, air traffic control, PMR, SRD, ISM, CB, weather satellite, and radio astronomy. The book Raspberry Pi 5 for Radio Amateurs gives extensive coverage of deploying the RTL-SDR kit through the use of a Raspberry Pi 5. This bundle contains: RTL-SDR V4 (incl. Dipole Antenna Kit) (normal price: €75) Raspberry Pi 5 for Radio Amateurs (normal price: €40) RTL-SDR V4 (Software Defined Radio) with Dipole Antenna Kit RTL-SDR is an affordable dongle that can be used as a computer-based radio scanner for receiving live radio signals between 500 kHz and 1.75 GHz in your area. The RTL-SDR V4 offers several improvements over generic brands including use of the R828D tuner chip, triplexed input filter, notch filter, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, aluminium case with passive cooling, bias tee circuit, improved power supply, and a built in HF upconverter. RTL-SDR V4 comes with the portable dipole antenna kit. It is great for beginners as it allows for terrestrial and satellite reception and easy to mount outdoors and designed for portable and temporary outside usage. Features Improved HF reception: V4 now uses a built-in upconverter instead of using a direct sampling circuit. This means no more Nyquist folding of signals around 14.4 MHz, improved sensitivity, and adjustable gain on HF. Like the V3, the lower tuning range remains at 500 kHz and very strong reception may still require front end attenuation/filtering. Improved filtering: The V4 makes use of the R828D tuner chip, which has three inputs. The SMA input has been triplexed input into 3 bands: HF, VHF and UHF. This provides some isolation between the 3 bands, meaning out of band interference from strong broadcast stations is less likely to cause desensitization or imaging. Improved filtering x2: In addition to the triplexing, the open drain pin on the R828D can be also used, which allows to add simple notch filters for common interference bands such as broadcast AM, broadcast FM and the DAB bands. These only attenuate by a few dB, but may still help. Improved phase noise on strong signals: Due to an improved power supply design, phase noise from power supply noise has been significantly reduced. Less heat: Another advantage of the improved power supply is low power consumption and less heat generation compared to the V3. Included 1x RTL-SDR V4 dongle (R828D RTL2832U 1PPM TCXO SMA) 2x 23 cm to 1 m telescopic antenna 2x 5 cm to 13 cm telescopic antenna 1x Dipole antenna base with 60 cm RG174 1x 3 m RG174 extension cable 1x Flexible tripod mount 1x Suction cup mount Downloads Datasheet User Guide Quick Start Guide SDR# User Guide Dipole Antenna Guide Book: Raspberry Pi 5 for Radio Amateurs The RTL-SDR devices (V3 and V4) have gained popularity among radio amateurs because of their very low cost and rich features. A basic system may consist of a USB based RTL-SDR device (dongle) with a suitable antenna, a Raspberry Pi 5 computer, a USB based external audio input-output adapter, and software installed on the Raspberry Pi 5 computer. With such a modest setup, it is possible to receive signals from around 24 MHz to over 1.7 GHz. This book is aimed at amateur radio enthusiasts and electronic engineering students, as well as at anyone interested in learning to use the Raspberry Pi 5 to build electronic projects. The book is suitable for both beginners through experienced readers. Some knowledge of the Python programming language is required to understand and eventually modify the projects given in the book. A block diagram, a circuit diagram, and a complete Python program listing is given for each project, alongside a comprehensive description. The following popular RTL-SDR programs are discussed in detail, aided by step-by-step installation guides for practical use on a Raspberry Pi 5: SimpleFM GQRX SDR++ CubicSDR RTL-SDR Server Dump1090 FLDIGI Quick RTL_433 aldo xcwcp GPredict TWCLOCK CQRLOG klog Morse2Ascii PyQSO Welle.io Ham Clock CHIRP xastir qsstv flrig XyGrib FreeDV Qtel (EchoLink) XDX (DX-Cluster) WSJT-X The application of the Python programming language on the latest Raspberry Pi 5 platform precludes the use of the programs in the book from working on older versions of Raspberry Pi computers.

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