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The AVR-IoT WA development board combines a powerful ATmega4808 AVR MCU, an ATECC608A CryptoAuthentication secure element IC and the fully certified ATWINC1510 Wi-Fi network controller – which provides the most simple and effective way to connect your embedded application to Amazon Web Services (AWS). The board also includes an on-board debugger, and requires no external hardware to program and debug the MCU. Out of the box, the MCU comes preloaded with a firmware image that enables you to quickly connect and send data to the AWS platform using the on-board temperature and light sensors. Once you are ready to build your own custom design, you can easily generate code using the free software libraries in Atmel START or MPLAB Code Configurator (MCC). The AVR-IoT WA board is supported by two award-winning Integrated Development Environments (IDEs) – Atmel Studio and Microchip MPLAB X IDE – giving you the freedom to innovate with your environment of choice. Features ATmega4808 microcontroller Four user LED’s Two mechanical buttons mikroBUS header footprint TEMT6000 Light sensor MCP9808 Temperature sensor ATECC608A CryptoAuthentication™ device WINC1510 WiFi Module On-board Debugger Auto-ID for board identification in Atmel Studio and Microchip MPLAB X One green board power and status LED Programming and debugging Virtual COM port (CDC) Two DGI GPIO lines USB and battery powered Integrated Li-Ion/LiPo battery charger

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From Detector to Software Defined Radio Radio frequency (RF) technology is one of the areas which still allows putting your own ideas into practice. Countless circuit variants with special objectives allow space for meaningful experiments and projects. Many things simply aren’t available off the shelf. Crystal detector radios without their own power source, simple tube receivers with a touch of nostalgia, the first reception attempts at Software Defined Radio, special receivers for amateur radio, all this can be realized with little effort and as a perfect introduction to RF electronics. For a long time, radio construction was the first step into electronics. Meanwhile, there are other ways, especially via computers, microcontrollers, and digital technology. However, the analog roots of electronics are often neglected. Elementary radio technology and easy-to-do experiments are particularly well suited as a learning field for electronics because you can start with the simplest basics here. But the connection to modern digital technology is also obvious, for example, when it comes to modern tuning methods such as PLL and DDS or modern DSP radios. This book aims to give an overview and present a collection of simple RF projects. The author would like to support you to develop your own ideas, to design your own receivers and to test them.

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This DIY kit (HU-017A) is a wireless FM radio receiver with a 4-digit 7-segment display. It operates within the global FM receiving frequency band of 87.0-108.0 MHz, making it suitable for use in any country or region. The kit offers two power supply modes, allowing you to use it both at home and outdoors. This DIY electronic product will help you understand circuits and improve your soldering skills. Features 87.0-108.0 MHz FM Radio: Built-in RDA5807 FM data processor with a standard FM receiving frequency band. The FM frequency can be adjusted using the F+ and F- buttons. Adjustable Volume: Two volume adjustment methods – button and potentiometer. There are 15 volume levels. Active & Passive Audio Output: The kit has a built-in 0.5 W power amplifier to drive 8 Ω speakers directly. It also outputs audio signals to headsets or loudspeakers with AUX interfaces, allowing personal listening and sharing of FM audio. Configured with a 25 cm dedicated FM antenna and a (red) 4-digit 7-segment display for real-time display of FM radio frequency. The transparent acrylic shell protects the internal circuit board. It supports dual power supply methods – 5 V USB and 2x 1.5 V (AA) batteries. DIY Hand Soldering: The kit comes with various components that need to be installed manually. It helps exercise and improve soldering skills, making it suitable for electronics hobbyists, beginners, and educational purposes. Specifications Operating voltage DC 3 V/5 V Output impedance 8 Ω Output power 0.5 W Output channel Mono Receiver frequency 87.0 MHz~108.0 MHz Frequency accuracy 0.1 MHz Operating temperature −40°C to +85°C Operating humidity 5% to 95% RH Dimensions 107 x 70 x 23 mm IMPORTANT: Remove the batteries when powering the radio over to USB. Included 1x PCB 1x RDA5807M FM Receiver 1x STC15W404AS MCU 1x IC Socket 1x 74HC595D Register 1x TDA2822M Amplifier 1x IC Socket 1x AMS1117-3.3 V Voltage Converter 18x Metal Film Resistor 1x Potentiometer 4x Ceramic Capacitor 5x Electrolytic Capacitor 4x S8550 Transistor 1x Red LED 1x 4-digit 7-segment Display 1x Toggle Switch 1x SMD Micro USB Socket 1x Radio Antenna 1x AUX Audio Socket 4x Black Button 4x Button Cap 1x 0.5 W/8 Ω Speaker 1x Red/Black Wire 2x Double-sided adhesive 1x AA Battery Box 1x USB cable 6x Acrylic Board 4x Nylon Column Screw 4x M3 Screw 4x M3 Nut 4x M2x22 mm Screw 1x M2x6 mm Screw 5x M2 Nut

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The FNIRSI DSO153 is a highly practical and cost-effective handheld oscilloscope with a real-time sampling rate of 5 MSa/s, 1 MHz bandwidth, and complete triggering function (single, normal, auto). It can be used freely for both periodic analog signals and non-periodic digital signals, and can measure up to ±400 V voltage with an efficient one-click AUTO, which can display the measured waveform without complicated adjustments. Additionally, it features a function signal generator capable of outputting 14 types of signals (10 KHz). Equipped with a 2.8-inch 320x240 resolution HD LCD screen and a built-in 1000 mAh high-quality lithium battery, it can be used for about 4 hours when fully charged. Features 2.8-inch HD LCD display with 320x240 Resolution Portable Pocket Oscilloscope with Signal Generator Lightweight, mini-sized, assembled Faster sampling: 5 MS/s, 1 MHz bandwidth Versatile triggering: Single, Normal, Auto User-friendly: One-button setup Extended battery: 1000 mAh, 4 hours Multi-functionality: 10 KHz Sine Wave Generator Specifications Bandwidth 1 MHz Sampling rate 5 MSa/s Vertical Sensitivity 10mV/Div – 20V/Div Time Base Range 500ns/Div – 20s/Div Voltage Range X1: ±40 V (Vpp: 80 V)X10: ±400 V (Vpp: 800 V) Trigger Method Auto / Normal / Single Coupling Method AC/DC Frequency Range 0-10 KHz Duty Cycle Range 0-100% Amplitude Range 0.1-3.3 V Display 2.8 inches (Resolution: 320 x 240) USB Charging 5 V/1 A Lithium Battery Capacity 1000 mAh Dimensions 99 x 68.3 x 19.5 mm Weight 100 g Included 1x FNIRSI DSO153 Oscilloscope 1x P6100 oscilloscope probe 1x Adapter 1x Alligator clip probe 1x USB charging cable 1x Lanyard 1x Manual Downloads Manual Firmware V1.1.8

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Program and build Arduino-based ham station utilities, tools, and instruments In addition to a detailed introduction to the exciting world of the Arduino microcontroller and its many variants, this book introduces you to the shields, modules, and components you can connect to the Arduino. Many of these components are discussed in detail and used in the projects included in this book to help you understand how these components can be incorporated into your own Arduino projects. Emphasis has been placed on designing and creating a wide range of amateur radio-related projects that can easily be built in just a few days. This book is written for ham radio operators and Arduino enthusiasts of all skill levels, and includes discussions about the tools, construction methods, and troubleshooting techniques used in creating amateur radio-related Arduino projects. This book teaches you how to create feature-rich Arduino-based projects, with the goal of helping you to advance beyond this book, and design and build your own ham radio Arduino projects. In addition, this book describes in detail the design, construction, programming, and operation of the following projects: CW Beacon and Foxhunt Keyer Mini Weather Station RF Probe with LED Bar Graph DTMF Tone Encoder DTMF Tone Decoder Waveform Generator Auto Power On/Off Bluetooth CW Keyer Station Power Monitor AC Current Monitor This book assumes a basic knowledge of electronics and circuit construction. Basic knowledge of how to program the Arduino using its IDE will also be beneficial.

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The M5Stack Proto Board is used as a Core Extensions feature. Suitable with Arduino and ESP32.

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Resonances From Aether Days A Pictorial and Technical Analysis from WWII to the Internet Age From the birth of radio to the late 1980s, much of real life unfolded through shortwave communication. World War II demonstrated—beyond a shadow of a doubt—that effective communications equipment was a vital prerequisite for military success. In the postwar years, shortwave became the backbone on which many of the world's most critical services depended every day. All the radio equipment—through whose cathodes, grids, plates, and transistors so much of human history has flowed—is an exceptional subject of study and enjoyment for those of us who are passionate about vintage electronics. In this book, which begins in the aftermath of World War II, you’ll find a rich collection of information: descriptions, tips, technical notes, photos, and schematics that will be valuable for anyone interested in restoring—or simply learning about—these extraordinary witnesses to one of the most remarkable eras in technological history. My hope is that these pages will help preserve this vast treasure of knowledge, innovation, and history—a heritage that far transcends the purely technical.

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Program and Build Raspberry Pi 5 Based Ham Station Utilities with the RTL-SDR 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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From Detector to Software Defined RadioRadio frequency (RF) technology is one of the areas which still allows putting your own ideas into practice. Countless circuit variants with special objectives allow space for meaningful experiments and projects. Many things simply aren’t available off the shelf. Crystal detector radios without their own power source, simple tube receivers with a touch of nostalgia, the first reception attempts at Software Defined Radio, special receivers for amateur radio, all this can be realized with little effort and as a perfect introduction to RF electronics.For a long time, radio construction was the first step into electronics. Meanwhile, there are other ways, especially via computers, microcontrollers, and digital technology. However, the analog roots of electronics are often neglected. Elementary radio technology and easy-to-do experiments are particularly well suited as a learning field for electronics because you can start with the simplest basics here.But the connection to modern digital technology is also obvious, for example, when it comes to modern tuning methods such as PLL and DDS or modern DSP radios.This book aims to give an overview and present a collection of simple RF projects. The author would like to support you to develop your own ideas, to design your own receivers and to test them.

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Ardi32 is the ultimate Arduino Uno alternative packed with powerful specs and exciting features in the Arduino Uno form factor. Ardi32 is powered by the latest ESP32-S3-WROOM-1. The built-in Wi-Fi and Bluetooth connectivity makes the board ideal for IoT projects or projects requiring wireless communication. Features Powered by powerful ESP32-S3-WROOM-1 module with inbuild WiFi and BLE support. Arduino Uno form factor, so you can connect 3.3 V compatible Arduino shields SD card slot for storage and data transfer The facility of USB-C interface for programming and to the power board Boot and Reset buttons are available to operate in various modes. Multifunction GPIO breakout supporting general I/O, UART, I²C, SPI, ADC & PWM functions. Multi-tune Buzzer to add audio alert into the project Multi-platform support like Arduino IDE, Espressif IDF, and MicroPython/CircuitPython Comes with HID support, so the device can simulate a mouse or keyboard Specifications ESP32-S3 series of SoCs having Xtensa dual-core 32-bit LX7 microprocessor 4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) Flash up to 16 MB, PSRAM up to 8 MB Board supply 5 V and GPIO pins operating voltage 3.3 V 22 multipurpose GPIOs breakout in Arduino style for easy peripheral and shield interfacing I²C, SPI, and UART communications protocol support Cross-platform development and multiple programming language support

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DSO-TC3 combines a digital oscilloscope, electronic component tester, signal generator, continuity test, voltage test, temperature and humidity measurement, infrared decoding and other functions are skillfully integrated. It is equipped with a 2.4" color TFT display and a built-in rechargeable lithium battery for mobile use. Specifications (Oscilloscope) The oscilloscope has a real-time sampling rate of 10 MSa/s and a bandwidth of 500 kHz. With complete trigger function (single, normal, automatic), no matter if you’re using periodic analog signals or non-periodic digital signals. Maximum measured voltage signal is 400 V. Equipped with efficient AUTO, the measured waveform can be displayed without cumbersome adjustments. Real-time sample rate 10 MSa/s Bandwidth 500 kHz Input resistance 1 MΩ Coupling method AC/DC Test voltage range 400 V Vertical Sensitivity (x1) 10 mV-10 V Horizontal time base range 1us-10s Trigger mode Auto/Normal/Single Trigger type Rising edge/Falling edge Waveform Freeze Yes Automatic measurement Yes Specifications (Component Tester) The instrument can automatically identify and measure various transistors, including NPN and PNP triodes, N-channel and P-channel mosfet, junction mosfet, diodes, dual diodes, thyristors, and resistors, inductors, capacitors and other passive components. Automatic detection of pin definition. Automatically analyze NEC protocol infrared code. Other functional modes: Including circuit continuity test, 0-40 V input voltage measurement, PWM output, 0-32 V regulated diode measurement, DS18B20 temperature sensor measurement, DHT11 temperature and humidity sensor measurement, etc. Specifications (Signal Generator) The signal generator has a total of 6 waveforms to choose from, with adjustable frequency and amplitude. Sine wave 1-100 KHz/0-3.3 V/50% Square wave 1-100 KHz/3.3 V/50% Pulse wave 1-100 KHz/3.3 V/0-100% Triangle wave 1-100 KHz/0-3.3 V/50% Ramp 1-100 KHz/0-3.3 V/0-100% DC 0-3.3 V Included 1x DSO-TC3 1x P6100 Oscilloscope Probe (100 MHz) 3x Test Hooks 1x Adapter 1x USB-C Cable 1x Manual Downloads Manual Firmware V0.3

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