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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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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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Opera Cake is an antenna switching add-on board for HackRF One/Pro that is configured with command-line software either manually, or for automated port switching based on frequency or time. It has two primary ports, each connected to any of eight secondary ports, and is optimized for use as a pair of 1x4 switches or as a single 1x8 switch. Its recommended frequency range is 1 MHz to 4 GHz. When HackRF One/Pro is used to transmit, Opera Cake can automatically route its output to the appropriate transmit antennas, as well as any external filters, amplifiers, etc. No changes are needed to the existing SDR software, but full control from the host is available. Opera Cake also enhances the HackRF One/Pro’s use as a spectrum analyzer across its entire operating frequency range of 1 MHz to 4 GHz. Antenna switching works with the existing hackrf_sweep feature, which can sweep the whole tuning range in less than a second. Automatic switching mid-sweep enables the use of multiple antennas when sweeping a wide frequency range. Downloads Documentation GitHub

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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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The QA403 is QuantAsylum's fourth-generation audio analyzer. The QA403 extends the functionality of the QA402 with improved noise and distortion performance, in addition to a flatter response at band edges. The compact size of the QA403 means you can take it just about anywhere. Features 24-bit ADC/DAC Up to 192 kS/s Fully isolated from PC Differential Input/Output USB powered Built-in Attenuator Fast Bootup and Driverless The QA403 is a driverless USB device, meaning it’s ready as soon as you plug it in. The software is free and it is quick and easy to move the hardware from one machine to the next. So, if you need to head to the factory to troubleshoot a problem or take the QA403 home for a work-from-home day, you can do it without hassle. No-Cal Design The QA403 comes with a factory calibration in its flash memory, ensuring consistent unit-to-unit performance. On your manufacturing line you can install another QA403 and be confident what you read on one unit will be very similar to the next unit. It is not expected that re-calibration will be required at regular intervals. Measurements Making basic measurements is quick and easy. In a few clicks you will understand the frequency response, THD(+N), gain, SNR and more of your device-under test. Dynamic Range The QA403 offers 8 gain ranges on the input (0 to +42 dBV in 6 steps), and 4 gain ranges on the output (-12 to +18 dBV in 10 dB steps). This ensures consistent performance over very wide ranges of input and output levels. The maximum AC input to the QA403 is +32 dBV = 40 Vrms. The maximum DC is ±40 V, and the maximum ACPEAK + DC = ±56 V. Easy Programmability The QA403 supports a REST interface, making it easy to automate measurements in just about any language you might anticipate. From Python to C++ to Visual Basic—if you know how to load a web page in your favorite language, you can control the QA403 remotely. Measurements are fast and responsive, usually with dozens of commands being processed per second. Isolated and USB Powered The QA403 is isolated from the PC, meaning you are measuring your DUT and not chasing some phantom ground loop. The QA403 is USB powered, like nearly all our instruments. If you are setting up remotely, throw a powered hub in your bag and your entire test setup can be running with a minimum of cables. Goodbye Soundcard, Hello QA403 Tired of trying to make a soundcard work? The calibration nightmare? The lack of gain stages? The limited drive? Are you tired of dealing with the fixed input ranges? The worry that you might destroy it with too much DC or AC? Tired of the ground loops? That’s why QuantAsylum built the QA403. Specifications Case Material Powder-coating Aluminum (2 mm thick front panel, 1.6 mm thick top/bottom) Dimensions 177 x 44 x 97 mm (W x H x D) Weight 435 g Downloads Datasheet Manual GitHub

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Mit dem Elektor Arduino Nano Trainingsboard (MCCAB) eigene Projekte realisieren Der Mikrocontroller ist das wohl faszinierendste Teilgebiet der Elektronik, denn aufgrund der Vielzahl von Funktionen, die er auf seinem Chip vereinigt, ist er für den Entwickler ein universelles Multi-Tool zur Realisierung seiner Projekte. Praktisch jedes Gerät des täglichen Gebrauchs wird heute von einem Mikrocontroller gesteuert. Für einen elektronischen Laien blieb es aufgrund der Komplexität bisher allerdings ein Wunschtraum, eigene Ideen mit einem Mikrocontroller zu realisieren. Das Arduino-Konzept hat den Einsatz von Mikrocontrollern weitgehend vereinfacht, sodass jetzt auch Laien eigene Elektronik-Ideen mit einem Mikrocontroller verwirklichen können. Buch & Hardware im Bundle: 'Learning by Doing' Dieses im Bundle mitgelieferte Buch (im großen A4-Format) zeigt, wie man auch ohne große Erfahrung in Elektronik und Programmiersprachen eigene Projekte mit einem Mikrocontroller realisieren kann. Es ist ein Mikrocontroller-Praxiskurs für Einsteiger, denn nach einem Überblick über die Interna des Mikrocontrollers und einer Einführung in die Programmiersprache C liegt der Schwerpunkt des Kurses auf den praktischen Übungen. Der Leser eignet sich die erforderlichen Kenntnisse durch 'Learning by Doing' an: in dem umfangreichen Praxisteil mit 12 Projekten und 46 Übungen wird das im vorderen Teil des Buches Gelernte mit vielen Beispielen unterlegt. Die Übungen sind dabei so aufgebaut, dass der Bearbeiter eine Aufgabenstellung erhält, die er mit seinem im Theorieteil des Buches aufgebauten Wissen löst. Für jede Übung gibt es anschließend eine ausführlich erklärte und kommentierte Musterlösung, die dem Bearbeiter bei Problemen weiterhilft und die er mit seiner eigenen Lösung vergleichen kann. Arduino IDE In der Arduino IDE, einer Software-Entwicklungsumgebung, die kostenlos auf den eigenen PC heruntergeladen werden kann und die das gesamte Softwarepaket enthält, das für ein eigenes Mikrocontroller-Projekt benötigt wird, schreibt der Bearbeiter mit dem Editor der IDE seine Programme („Apps“) in der Programmiersprache C. Der in die Arduino IDE integrierte Compiler übersetzt sie in die Bits und Bytes, die der Mikrocontroller versteht und die dann über ein USB-Kabel in den Speicher des Mikrocontrollers auf dem Elektor Arduino Nano Trainingsboard (MCCAB) geladen werden. Externe Sensoren, Motoren oder Baugruppen abfragen oder steuern Das Elektor Arduino Nano Trainingsboard (MCCAB) enthält neben einem Mikrocontrollermodul Arduino Nano alle für die Übungen benötigten Bauteile wie Leuchtdioden, Schalter, Taster, akustische Signalgeber usw. Auch externe Sensoren, Motoren oder Baugruppen können mit diesem Mikrocontroller-Übungssystem abgefragt oder gesteuert werden. Technische Daten (Arduino Nano Trainingsboard MCCAB) Stromversorgung Über die USB-Verbindung des zur Erstellung der Programme sowieso angeschlossenen PCs oder ein externes Netzteil (nicht im Lieferumfang enthalten) Betriebsspannung +5 Vcc Eingangsspannung Alle Eingänge 0 V bis +5 V VX1 und VX2 +8 V bis +12 V (nur bei Verwendung eines externen Netzteils) Mikrocontrollermodul Arduino Nano Hardwareperipherie LCD 2x16 Zeichen Potenziometer P1 & P2 JP3: Auswahl der Betriebsspannung von P1 & P2 Verteiler SV4: Verteiler für die BetriebsspannungenSV5, SV6: Verteiler für die Ein-/Ausgänge des Mikrocontrollers Schalter und Taster RESET-Taster auf dem Arduino Nano-Modul6x Tastschalter K1 … K66x Schiebeschalter S1 … S6JP2: Verbindung der Schalter mit den Eingängen des Mikrocontrollers Summer Piezo-Summer Buzzer1 mit Steckbrücke auf JP6 Leuchtanzeigen LED L auf dem Arduino Nano-Modul, verbunden mit GPIO D1311x LED: Zustandsanzeige für die Ein-/AusgängeJP6: Verbindung der LEDs LD10 … LD20 mit den GPIOs D2 … D12 Serielle SchnittstellenSPI & I²C JP4: Auswahl des Signals an Pin X der SPI-Steckerleiste SV12SV9 bis SV12: SPI-Interface (3,3 V/5 V) bzw. I²C-Interface Schaltausgang für externe Geräte SV1, SV7: Schaltausgang (maximal +24 V/160 mA, extern zugeführt)SV2: 2x13 Pins zum Anschluss externer Module 3x3 LED-Matrix (9 rote LEDs) SV3: Spalten der 3x3 LED-Matrix (Ausgänge D6 … D8)JP1: Verbindung der Reihen mit den GPIOs D3 … D5 Software Library MCCABLib Steuerung der Hardware-Komponenten (Schalter, Taster, Leuchtdioden, 3x3 LED-Matrix, Summer) auf dem MCCAB Trainingsboard Betriebstemperatur bis +40 °C Abmessungen 100 x 100 x 20 mm Technische Daten (Arduino Nano) Mikrocontroller ATmega328P Architektur AVR Betriebsspannung 5 V Flashspeicher 32 KB, davon 2 KB vom Bootloader belegt SRAM 2 KB Taktfrequenz 16 MHz Analoge IN-Pins 8 EEPROM 1 KB DC-Strom pro I/O-Pin 40 mA an einem I/O-Pin, insgesamt maximal 200 mA an allen Pins gemeinsam Eingangsspannung 7-12 V Digitale I/O-Pins 22 (6 davon sind PWM-fähig) PWM-Ausgänge 6 Stromverbrauch 19 mA Abmessungen 18 x 45 mm Gewicht 7 g Lieferumfang Elektor Arduino Nano MCCAB Trainingsboard Arduino Nano Buch: Mikrocontroller-Praxiskurs für Arduino-Einsteiger

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Your gateway to IoT and microcontroller programming With 450+ components and 117 online projects, this comprehensive kit ignites your creativity. The tutorials by Paul McWhorter make learning enjoyable for beginners and advanced users. This kit supports MicroPython, C/C++, and Piper Make, offering diverse programming options. Explore sensors, actuators, LEDs, and LCDs for endless project possibilities. From home automation to robotics, this kit empowers your tech journey. Features IoT Starter Kit for Beginners: This kit offers a rich IoT learning experience for beginners. With 450+ components, 117 projects, and expert-led video lessons, this kit makes learning microcontroller programming and IoT engaging and accessible. Expert-Guided Video Lessons: The kit includes 27 video tutorials by the renowned educator, Paul McWhorter. His engaging style simplifies complex concepts, ensuring an effective learning experience in microcontroller programming. Wide Range of Hardware: The kit includes a diverse array of components like sensors, actuators, LEDs, LCDs, and more, enabling you to experiment and create a variety of projects with the Raspberry Pi Pico W. Supports Multiple Languages: The kit offers versatility with support for three programming languages - MicroPython, C/C++, and Piper Make, providing a diverse programming learning experience. Dedicated Support: Benefit from our ongoing assistance, including a community forum and timely technical help for a seamless learning experience. Included Raspberry Pi Pico W Breadboard Jumper Wires Resistor Transistor Capacitor Diode Li-po Charger Module 74HC595 TA6586 – Motor Driver Chip LED RGB LED LED Bar Graph 7-segment Display 4-Digit 7-Segment Display LED Dot Matrix I²C LCD1602 WS2812 RGB 8 LEDs Strip Buzzer DC Motor Servo DC Water Pump Relay Button Micro Switch Slide Switch Potentiometer Infrared Receiver Joystick Module 4x4 Keypad MPR121 Module MFRC522 Module Photoresistor Thermistor Tilt Switch Reed Switch PIR Motion Sensor Module Water Level Sensor Module Ultrasonic Module DHT11 Humiture Sensor MPU6050 Module Documentation Online Tutorials in 3 languages (EN, DE and JP)

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