No more searching for micro-SD cards, SD adapters, USB-C adapters or USB devices. It’s all here, every time you’re ready to prototype a project, in one neat and tidy package. Our example configuration holds your Raspberry Pi 4, a 400-point clear breadboard, 4 micro-SD cards, an SD-adapter, 4x USB devices and 2x universal slots (great for USB-C adapters or anything else you want to store). You can of course use the storage slots for whatever you like... Customise it and use it in whatever way works best for you! Despite sitting flush with the top glass-effect acrylic layer of the dock, all of the Raspberry Pi’s ports are accessible, including access to the micro-SD slot. HATs can also be fitted. The dock is made up of 4 slick, sandwiched layers of matte black and glass-effect laser-cut acrylic! A really stunning and useful home for your Raspberry Pi and projects! Assembly guide available here. Kit includes 4 layer laser-cut acrylic dock 400-point clear breadboard Fixings and spacers

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The PTS200 is a powerful, ESP32-controlled portable smart soldering iron with an adjustable output power range of 18 to 100 W. Paired with a 100-watt power supply and a 4-ohm soldering tip, this soldering iron eliminates the need for a traditional soldering station, fully meeting the demands of various soldering tasks. It features 4 adjustable operating voltages, allowing it to be configured for different power sources. Features 100 W Power Output: Experience rapid heating with a powerful 100 W output, reaching 450°C (842°F) in just 8 seconds for quick and efficient soldering. Universal Tip Compatibility: Compatible with T12/TS100/TS101 tips, making the PTS200 adaptable to a wide range of soldering tasks. Fast Charging Protocols: Supports PD3.0 and QC2.0/QC3.0, enabling power from fast charging adapters or power banks, ideal for soldering on the go. Automatic Sleep Function: Extends the lifespan of the soldering tips. The superfast wake-up feature ensures the soldering iron is always ready when needed. Ergonomic Design: Crafted with a CNC-machined metal body, the PTS200 offers both ergonomic comfort and reliable heat dissipation. Specifications Output Power 18-100 W Input Voltage (adjustable) • 9 V/2 A• 12 V/1.5 A• 15 V/3 A• 20 V/5 A Temperature Range 50-450°C (122-842°F) Heating Time 8 seconds Temperature Stability ±2% Microcontroller ESP32-S2 Display 0.96" OLED (128 x 64 pixels) Power Supply USB-C Special Features • Automatic sleep• CNC metal shell• Compatible with T12/TS101/TS100/Pinecil soldering tips• 20 V/5 A (100 W maximum power) Included PTS200 Soldering Iron Soldering tip BC2 (4 Ω) Soldering tip K (4 Ω) Soldering tip B2 (4 Ω) Soldering tip I (4 Ω) 100 W power supply (EU) USB-C cable Software Firmware

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PÚCA DSP is an open-source, Arduino-compatible ESP32 development board for audio and digital signal processing (DSP) applications with expansive audio-processing features. It provides audio inputs, audio outputs, a low-noise microphone array, an integrated test-speaker option, additional memory, battery-charge management, and ESD protection all on a small, breadboard-friendly PCB. Synthesizers, Installations, Voice UI, and More PÚCA DSP can be used for a wide range of DSP applications, including but not limited to those in the fields of music, art, creative technology, and adaptive technology. Music-related examples include digital-music synthesis, mobile recording, Bluetooth speakers, wireless line-level directional microphones, and the design of smart musical instruments. Art-related examples include acoustic sensor networks, sound-art installations, and Internet-radio applications. Examples related to creative and adaptive technology include voice user interface (VUI) design and Web audio for the Internet of Sounds. Compact, Integrated Design PÚCA DSP was designed for portability. When used with an external 3.7 V rechargeable battery, it can be deployed almost anywhere or integrated into just about any device, instrument, or installation. Its design emerged from months of experimentation with various ESP32 development boards, DAC breakout boards, ADC breakout boards, Microphone breakout boards, and audio-connector breakout boards, and – despite its diminutive size – it manages to provide all of that functionality in a single board. And it dos so without compromising signal quality. Specifications Processor & Memory Espressif ESP32 Pico D4 Processor 32-bit dual core 80 MHz / 160 MHz / 240 MHz 4 MB SPI Flash with 8 MB additional PSRAM (Original Edition) Wireless 2.4 GHz Wi-Fi 802.11b/g/n Bluetooth BLE 4.2 3D Antenna Audio Wolfson WM8978 Stereo Audio Codec Audio Line In on 3.5 mm stereo onnector Audio Headphone / Line Out on 3.5 mm stereo connector Stereo Aux Line In, Audio Mono Out routed to GPIO Header 2x Knowles SPM0687LR5H-1 MEMS Microphones ESD protection on all audio inputs and outputs Support for 8, 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48 kHz sample rates 1 W Speaker Driver, routed to GPIO Header DAC SNR 98 dB, THD -84 dB (‘A’ weighted @ 48 kHz) ADC SNR 95 dB, THD -84 dB (‘A’ weighted @ 48 kHz) Line input impedance: 1 MOhm Line output impedance: 33 Ohm Form Factor and Connectivity Breadboard friendly 70 x 24 mm 11x GPIO pins broken out to 2.54 mm pitch header, with access to both ESP32 ADC channels, JTAG and capacitive touch pins USB 2.0 over USB Type C connector Power 3.7/4.2 V Lithium Polymer Rechargeable Battery, USB or external 5 V DC power source ESP32 and Audio Codec can be placed into low power modes under software control Battery voltage level detection ESD protection on USB data bus Downloads GitHub Datasheet Links Crowd Supply Campaign (includes FAQs) Hardware Overview Programming the Board The Audio Codec

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Learn to use Python productively in real-life scenarios at work and in everyday life If you have mastered the basics of Python and are wanting to explore the language in more depth, this book is for you. By means of concrete examples used in different applications, the book illustrates many aspects of programming (e.g. algorithms, recursion, data structures) and helps problem-solving strategies. Including general ideas and solutions, the specifics of Python and how these can be practically applied are discussed. Python 3 for Science and Engineering Applications includes: practical and goal-oriented learning basic Python techniques modern Python 3.6+ including comprehensions, decorators and generators complete code available online more than 40 exercises, solutions documented online no additional packages or installation required, 100% pure Python Topics cover: identifying large prime numbers and computing Pi writing and understanding recursive functions with memorisation computing in parallel and utilising all system cores processing text data and encrypting messages comprehending backtracking and solving Sudokus analysing and simulating games of chance to develop optimal winning strategies handling genetic code and generating extremely long palindromes Downloads Software

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Learn to use Python productively in real-life scenarios at work and in everyday life If you have mastered the basics of Python and are wanting to explore the language in more depth, this book is for you. By means of concrete examples used in different applications, the book illustrates many aspects of programming (e.g. algorithms, recursion, data structures) and helps problem-solving strategies. Including general ideas and solutions, the specifics of Python and how these can be practically applied are discussed. Python 3 for Science and Engineering Applications includes: practical and goal-oriented learning basic Python techniques modern Python 3.6+ including comprehensions, decorators and generators complete code available online more than 40 exercises, solutions documented online no additional packages or installation required, 100% pure Python Topics cover: identifying large prime numbers and computing Pi writing and understanding recursive functions with memorisation computing in parallel and utilising all system cores processing text data and encrypting messages comprehending backtracking and solving Sudokus analysing and simulating games of chance to develop optimal winning strategies handling genetic code and generating extremely long palindromes Downloads Software

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This is the second edition of a book aimed at engineers, scientists, and hobbyists who want to interface PCs with hardware projects using graphical user interfaces. Desktop and web-based applications are covered. The programming language used is Python 3, which is one of the most popular languages around: speed of programming being a key feature. The book has been revised and updated with an emphasis on getting the user to produce practical designs with ease – a text editor is all that is required to produce Python programs. Hardware interfacing is achieved using an Arduino Uno as a remote slave. A full description and source code of the communication interface is given in the book. The slave provides digital and analog input and outputs. Multiple Unos can be included in one project with all control code written in Python and running on a PC One project involves a PIC microcontroller with the code provided that can be loaded into the PIC using the Uno. The web applications and server are all implemented in Python, allowing you to access your electronic hardware over the Internet. The Raspberry Pi computer can be used as your web server. An introductory chapter is provided to get you started with using Linux. The book is written for use with Debian or variations including Mint or Ubuntu. All of the programs in the book are freely available, ready to use and experiment with by way of a download from Elektor.

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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 Dimensions 177 x 44 x 97 mm (W x H x D) Weight 435 g Case Material Powder-coating Aluminum (2 mm thick front panel, 1.6 mm thick top/bottom) Downloads Datasheet Manual GitHub

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The EC200U-EU C4-P01 development board features the EC200U-EU LTE Cat 1 wireless communication module, offering a maximum data rate of up to 10 Mbps for downlink and 5 Mbps for uplink. It supports multi-mode and multi-band communication, making it a cost-effective solution. The board is designed in a compact and unified form factor, compatible with the Quectel multi-mode LTE Standard EC20-CE. It includes an onboard USB-C port, allowing for easy development with just a USB-C cable. Additionally, the board is equipped with a 40-pin GPIO header that is compatible with most Raspberry Pi HATs. Features Equipped with EC200U-EU LTE Cat 1 wireless communication module, multi-mode & multi-band support Onboard 40-Pin GPIO header, compatible with most Raspberry Pi HATs 5 LEDs for indicating module operating status Supports TCP, UDP, PPP, NITZ, PING, FILE, MQTT, NTP, HTTP, HTTPS, SSL, FTP, FTPS, CMUX, MMS protocols, etc. Supports GNSS positioning (GPS, GLONASS, BDS, Galileo, QZSS) Onboard Nano SIM card slot and eSIM card slot, dual card single standby Onboard MIPI connector for connecting MIPI screen and is fully compatible with Raspberry Pi peripherals Onboard camera connector, supports customized SPI cameras with a maximum of 300,000 pixels Provides tools such as QPYcom, Thonny IDE plugin, and VSCode plugin, etc. for easy learning and development Comes with online development resources and manual (example in QuecPython) Specifications Applicable Regions Europe, Middle East, Africa, Australia, New Zealand, Brazil LTE-FDD B1, B3, B5, B7, B8, B20, B28 LTE-TDD B38, B40, B41 GSM / GPRS / EDGE GSM: B2, B3, B5, B8 GNSS GPS, GLONASS, BDS, Galileo, QZSS Bluetooth Bluetooth 4.2 (BR/EDR) Wi-Fi Scan 2.4 GHz 11b (Rx) CAT 1 LTE-FDD: DL 10 Mbps; UL 5 Mbps LTE-TDD: DL 8.96 Mbps; UL 3.1 Mbps GSM / GPRS / EDGE GSM: DL 85.6 Kbps; UL 85.6 Kbps USB-C Port Supports AT commands testing, GNSS positioning, firmware upgrading, etc. Communication Protocol TCP, UDP, PPP, NITZ, PING, FILE, MQTT, NTP, HTTP, HTTPS, SSL, FTP, FTPS, CMUX, MMS SIM Card Nano SIM and eSIM, dual card single standby Indicator P01: Module Pin 1, default as EC200A-XX PWM0 P05: Module Pin 5, NET_MODE indicator SCK1: SIM1 detection indicator, lights up when SIM1 card is inserted SCK2: SIM2 detection indicator, lights up when SIM2 card is inserted PWR: Power indicator Buttons PWK: Power ON/OFF RST: Reset BOOT: Forcing into firmware burning mode USB ON/OFF: USB power consumption detection switch Antenna Connectors LTE main antenna + DIV / WiFi (scanning only) / Bluetooth antenna + GNSS antenna Operating Temperature −30~+75°C Storage Temperature −45~+90°C Downloads Wiki Quectel Resources

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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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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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This ebook is about the Raspberry Pi 3 computer and its use in various control and monitoring applications. The book explains in simple terms and with tested and working example projects, how to configure the Raspberry Pi 3 computer, how to install and use the Linux operating system, and how to write hardware based applications programs using the Python programming language. The nice feature of this book is that it covers many Raspberry Pi 3 based hardware projects using the latest hardware modules such as the Sense HAT, Swiss Pi, MotoPi, Camera module, and many other state of the art analog and digital sensors. An important feature of the Raspberry Pi 3 is that it contains on-board Bluetooth and Wi-Fi modules. Example projects are given in the book on using the Wi-Fi and the Bluetooth modules to show how real-data can be sent to the Cloud using the Wi-Fi module, and also how to communicate with an Android based mobile phone using the Bluetooth module. The book is ideal for self-study, and is intended for electronic/electrical engineering students, practising engineers, research students, and for hobbyists. It is recommended that the book should be followed in the given Chapter order. Over 30 projects are given in the book. All the projects in the book are based on the Python programming language and they have been fully tested. Full program listings of every project are given in the book with comments and full descriptions. Experienced programmers should find it easy to modify and update the programs to suit their needs. The following sub-headings are given for each project to make it as easy as possible for the readers to follow the projects: Project title Description Aim of the project Raspberry Pi type Block diagram Circuit diagram Program listing

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Designed for overclockers and other power users, this fan keeps your Raspberry Pi 4 at a comfortable operating temperature even under heavy load. The temperature-controlled fan delivers up to 1.4 CFM of airflow over the processor, memory, and power management IC. The bundled heatsink (18 x 8 x 10 mm) with self-adhesive pad improves heat transfer from the processor. The Raspberry Pi 4 Case Fan works with Raspberry Pi 4 and the official Raspberry Pi 4 case.

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