EASTER SALE: Order the Geekworm KVM-A3 Kit now and receive the e-book Raspberry Pi Full Stack (worth €35) for FREE! KVM stands for Keyboard, Video, and Mouse and it is a powerful open-source software that enables remote access via Raspberry Pi. This KVM-A3 kit is designed based on the Raspberry Pi 4. With it, you can turn your computer on or off, restart it, configure the UEFI/BIOS, and even reinstall the operating system using a virtual CD-ROM or flash drive. You can either use your own remote keyboard and mouse, or let KVM simulate a keyboard, mouse, and monitor – presented through a web browser as if you were directly interacting with the remote system. It's true hardware-level access with no dependency on remote ports, protocols, or services! Features Designed especially for KVM (an open and affordable DIY IP-KVM based on Raspberry Pi) Compatible with Raspberry Pi 4 (not included) Fully compatible with PiKVM V3 OS Control a server or computer using a web browser HDMI Full HD capture based on the TC358743 chip OTG keyboard and mouse support; mass storage drive emulation Hardware Real-Time Clock (RTC) with CR1220 coin battery socket Equipped with a cooling fan to dissipate heat from the Raspberry Pi Features solid-state relays to protect Raspberry Pi GPIO pins from computer and ESD spikes ATX control via RJ45 connector: switch the machine on or off, reset it, and monitor HDD and power LED status remotely 10-pin SH1.0 connector reserved for future I²S HDMI audio support 4-pin header and spacers reserved for I²C OLED display Included KVM-A3 Metal Case for Raspberry Pi 4 X630 HDMI to CSI-2 Module (for video capture) X630-A3 Expansion Board (provides Ethernet, cooling, RTC, power input, etc.) X630-A5 Adapter Board (installed inside the PC case; connects the computer motherboard to the IO panel cable of the PC case) 0.96-inch OLED Display (128 x 64 pixels) Ethernet Cable (TIA/EIA-568.B standard; also serves as the ATX control signal cable) Downloads Wiki PiKVM OS

Read more less

A Hands-On Lab Course This introduction to circuit design is unusual in several respects. First, it offers not just explanations, but a full course. Each of the twenty-five sessions begins with a discussion of a particular sort of circuit followed by the chance to try it out and see how it actually behaves. Accordingly, students understand the circuit's operation in a way that is deeper and much more satisfying than the manipulation of formulas. Second, it describes circuits that more traditional engineering introductions would postpone: on the third day, we build a radio receiver; on the fifth day, we build an operational amplifier from an array of transistors. The digital half of the course centers on applying microcontrollers, but gives exposure to Verilog, a powerful Hardware Description Language. Third, it proceeds at a rapid pace but requires no prior knowledge of electronics. Students gain intuitive understanding through immersion in good circuit design. The course is intensive, teaching electronics in day-at-a-time practical doses so that students can learn in a hands-on way. The integration of discussion of design with a chance to try the circuits means students learn quickly. The course has been tried and tested, and proven successful through twenty-five years of teaching. The book is practical: it avoids mathematics and mathematical arguments and even includes a complete list of parts needed in the laboratory exercises, including where and how to buy them. The much-anticipated new edition of 'Learning the Art of Electronics' is here! It defines a hands-on course, inviting the reader to try out the many circuits that it describes. Several new labs (on amplifiers and automatic gain control) have been added to the analog part of the book, which also sees an expanded treatment of meters. Many labs now have online supplements. The digital sections have been rebuilt. An FPGA replaces the less-capable programmable logic devices, and a powerful ARM microcontroller replaces the 8051 previously used. The new microcontroller allows for more complex programming (in C) and more sophisticated applications, including a lunar lander, a voice recorder, and a lullaby jukebox. A new section explores using an Integrated Development Environment to compile, download, and debug programs. Substantial new lab exercises, and their associated teaching material, have been added, including a project reflecting this edition's greater emphasis on programmable logic. Online resources including online chapters, teaching materials and video demonstrations can be found at: www.LearningTheArtOfElectronics.com Downloads Table of Contents

Read more less

The Mendocino Motor AR O-8 is a magnetically levitated, solar powered electric motor as a kit. Light Becomes Movement The solar-powered Mendocino motor seems to float in the air. At first glance, you can't see why the rotor is turning at all. This is the magic of the motor. The Lorentz force is a very small electrical force. In a classroom setting, it is detected by a current swing in the magnetic field. With the Mendocino motor, we have succeeded in developing a beautiful application that uses this weak force for propulsion. Due to its concealed base magnet, the motor will fascinate technically inclined observers. In bright sunlight, the motor can reach a speed of up to 1,000 rpm. More impressive, however, is that even the faint glow of an ample tea light (D = 6 cm with a flame height of about 2 cm) is sufficient to drive the motor. The motor is not yet an alternative source of energy, even though it looks tempting. Presumably, it will remain an attractive model until a resourceful mind disproves this assumption. Dimensions All solar cells 65 x 20 mm Mirror diameter: 25 mm Rotor weight: approx. 150 g Model length: 160 mm Model width: 85 mm Frame height: approx. 85 mm Frame material: black acrylic Tube made of highly polished aluminum Mirror color: silver The Mendocino motor’s easy-to-follow instruction manual includes more than 70 illustrations. It describes a safe and practical approach to construction but also gives you the freedom to try your solutions. Partly Pre-Assembled Kit A portion of the kit comes pre-assembled. Bonding the borosilicate glass pane to the acrylic surface requires specialized knowledge and aids. We do not want to impose this on the hobbyist. For instance, the base magnet is attached to the aluminum tube. As a hobbyist, you will need some know-how and appropriate tools: carpet knife, soldering iron and tin, hot glue, pliers, and a clamp or ferrule to fix the supplied assembly aid. A lot of fun is guaranteed!

Read more less

The Raspberry Pi AI HAT+ is an expansion board designed for the Raspberry Pi 5, featuring an integrated Hailo AI accelerator. This add-on offers a cost-effective, efficient, and accessible approach to incorporating high-performance AI capabilities, with applications spanning process control, security, home automation, and robotics. Available in models offering 13 or 26 tera-operations per second (TOPS), the AI HAT+ is based on the Hailo-8L and Hailo-8 neural network accelerators. The 13 TOPS model efficiently supports neural networks for tasks like object detection, semantic and instance segmentation, pose estimation, and more. This 26 TOPS variant accommodates larger networks, enables faster processing, and is optimized for running multiple networks simultaneously. The AI HAT+ connects via the Raspberry Pi 5’s PCIe Gen3 interface. When the Raspberry Pi 5 is running a current version of the Raspberry Pi OS, it automatically detects the onboard Hailo accelerator, making the neural processing unit (NPU) available for AI tasks. Additionally, the rpicam-apps camera applications included in Raspberry Pi OS seamlessly support the AI module, automatically using the NPU for compatible post-processing functions. Included Raspberry Pi AI HAT+ (26 TOPS) Mounting hardware kit (spacers, screws) 16 mm GPIO stacking header Downloads Datasheet

Read more less

BeagleY-AI is a low-cost, open-source, and powerful 64-bit quad-core single-board computer, equipped with a GPU, DSP, and vision/deep learning accelerators, designed for developers and makers. Users can take advantage of BeagleBoard.org's provided Debian Linux software images, which include a built-in development environment. This enables the seamless running of AI applications on a dedicated 4 TOPS co-processor, while simultaneously handling real-time I/O tasks with an 800 MHz microcontroller. BeagleY-AI is designed to meet the needs of both professional developers and educational environments. It is affordable, easy to use, and open-source, removing barriers to innovation. Developers can explore in-depth lessons or push practical applications to their limits without restriction. Specifications Processor TI AM67 with quad-core 64-bit Arm Cortex-A53, GPU, DSP, and vision/deep learning accelerators RAM 4 GB LPDDR4 Wi-Fi BeagleBoard BM3301 module based on TI CC3301 (802.11ax Wi-Fi) Bluetooth Bluetooth Low Energy 5.4 (BLE) USB • 4x USB-A 3.0 supporting simultaneous 5 Gbps operation• 1x USB-C 2.0 supports USB 2.0 device Ethernet Gigabit Ethernet, with PoE+ support (requires separate PoE+ HAT) Camera/Display 1x 4-lane MIPI camera/display transceivers, 1x 4-lane MIPI camera Display Output 1x HDMI display, 1x OLDI display Real-time Clock (RTC) Supports an external button battery for power failure time retention. It is only populated on EVT samples. Debug UART 1x 3-pin debug UART Power 5 V/5 A DC power via USB-C, with Power Delivery support Power Button On/Off included PCIe Interface PCI-Express Gen3 x1 interface for fast peripherals (requires separate M.2 HAT or other adapter) Expansion Connector 40-pin header Fan connector 1x 4-pin fan connector, supports PWM speed control and speed measurement Storage microSD card slot, with support for high-speed SDR104 mode Tag Connect 1x JTAG, 1x Tag Connect for PMIC NVM Programming Downloads Pinout Documentation Quick start Software

Read more less

The solar tracking kit is based on Arduino. It consists of 4 ambient light sensors, 2 DOF servos, a solar panel and so on, aiming at converting light energy into electronic energy and charging power devices. It also boasts a charging module, a temperature and humidity sensor, a BH1750 light sensor, a buzzer, an LCD1602 display, a push button module, an LED module and others, highly enriching the tutorial and making projects more interesting. This kit can not only help kids have a better learning about programming but obtain knowledge about electronics, machinery, controlling logic and computer science. Features Multiple functions: Track light automatically, read temperature, humidity and light intensity, button control, LCD1602 display and charge by solar energy. Easy to build: Insert into Lego jack to install and no need to fix with screws and nuts or solder circuit; also easy to dismantle. Novel style: Adopt acrylic boards and copper pillars; sensors or modules connected to acrylic boards via Lego jacks; LCD1602 modules and solar panels add technologies to it. High extension: Preserve I²C, UART, SPI ports and Lego jacks, and extend other sensors and modules. Basic programming: Program in C language with Arduino IDE. Specifications Working voltage 5 V Input voltage 3.7 V Max. output current 1.5 A Max. power dissipation 7.5 W Downloads Wiki

Read more less

The T-Journal is a cheap ESP32 Camera Development Board that features an OV2640 camera, an antenna, a 0.91 inch OLED display, some exposed GPIOs, and a micro-USB interface. It makes it easy and quick to upload code to the board. Specifications Chipset Expressif-ESP32-PCIO-D4 240 MHz Xtensa single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash/SRAM, up to 4x 16 MB SRAM 520 kB SRAM KEY reset, IO32 Display 0.91' SSD1306 Power indicator lamp red USB to TTL CP2104 Camera OV2640, 2 Megapixel Steering engine analog servo On-board clock 40 MHz crystal oscillator Working voltage 2.3-3.6 V Working current about 160 mA Working temperature range -40℃ ~ +85℃ Size 64.57 x 23.98 mm Power Supply USB 5 V/1 A Charging current 1 A Battery 3.7 V lithium battery WiFi Standard FCC/CE/TELEC/KCC/SRRC/NCC (ESP32-chip) Protocol 802.11 b/g/n/e/i (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU polymerization, support 0.4 μS Protection interval Frequency range 2.4 GHz~2.5 GHz (2400 M ~ 2483.5 M) Transmit Power 22 dBm Communication distance 300m Bluetooth Protocol meet bluetooth v4.2BR/EDR and BLE standard Radio frequency with -98 dBm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH Audio frequency CVSD & SBC audio frequency Software Wifi Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type AES/RSA/ECC/SHA Firmware upgrade UART download/OTA (Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, Android/iOS app OS FreeRTOS Included 1x ESP32 Camera Module (Fish-eye Lens) 1x Wi-Fi Antenna 1x Power Line Downloads Camera library for Arduino

Read more less

Display HAT Mini features a bright 18-bit capable 320x240 pixel display with vibrant colours and formidable IPS viewing angles, connected via SPI. It's got four tactile buttons for interacting with your Raspberry Pi with your digits and a RGB LED for notifications. A QwST connector (Qwiic / STEMMA QT) and a Breakout Garden header is also squeezed in so it's a doddle to connect up different kinds of breakouts. It will work with any model of Raspberry Pi with a 40 pin header, but we think it goes with the Raspberry Pi Zero particularly well - we've included a pair of standoffs so you can use to bolt HAT and Raspberry Pi together to make a sturdy little unit. To accommodate the screen Display HAT Mini is a bit bigger than a standard mini HAT or pHAT – it's around 5 mm taller than a Raspberry Pi Zero (so a Mini HAT XL or a Mini HAT Pro, if you will). Display HAT Mini lets you turn a Raspberry Pi into a convenient IoT control panel, a tiny photo frame, digital art display or gif-box, or a desktop display for news headlines, tweets, or other info from online APIs. This screen is a handy 3:2 ratio, useful for retro gaming purposes! Features 2.0” 320x240 pixel IPS LCD screen, connected via SPI (~220 PPI, 65K colours) 4x tactile buttons RGB LED Qw/ST (Qwiic/STEMMA QT) connector Breakout Garden / I²C header Pre-soldered socket header for attaching to Raspberry Pi Compatible with all models of Raspberry Pi with a 40-pin header. Fully assembled No soldering required (as long as your RPi has header pins attached). Dimensions: approx 65.5 x 35 x 9 mm (W x H x D, includes header and display). With a Raspberry Pi Zero attached with standoffs, the total depth is 17 mm. Screen usable area: 40.8 x 30.6 mm (L x W) Pinout Schematic Dimensional drawing Display HAT Mini Python library ST7789 Python library Included Display HAT Mini 2x 10 mm standoffs

Read more less

This Mini Radar Robot is an exciting, programmable DIY kit that combines creativity, technology, and hands-on learning. The kit is perfect for tech enthusiasts, makers, and students eager to explore robotics and programming with Arduino or ESP8266. Equipped with a 2.8" TFT screen, it offers real-time visual feedback by detecting objects with its ultrasonic sensors. Targets within 1 meter are shown as red dots, while objects up to 4.5 m are displayed in digital form on the screen. Specifications Main Control Unit ESP8266 microcontroller + expansion board Material Constructed from high-quality acrylic sheet, ensuring durability and a sleek, modern look Operating Voltage 5 V/2 A Operating Temperature −40 to 85°C Dimensions 145 x 95 x 90 mm Installation No soldering and programming required Included 1x Servo motor 1x Ultrasonic transducer module 1x Microcontroller board 1x 2.8-inch display module 1x USB power supply 1x USB cable Acrylic mechanical elements All necessary cables, screws, nuts, and spacers

Read more less

These high-precision, anti-static tweezers with black ESD coating can be used in electronics for placing SMD components when soldering and for repairing smartwatches, smartphones, tablets, PCs etc. It is deal for picking up small components in hard to reach places. Specifications Length 125 mm Width 11 mm

Read more less

RF circuit design is now more important than ever as we find ourselves in an increasingly wireless world. Radio is the backbone of today’s wireless industry with protocols such as Bluetooth, Wi-Fi, WiMax, and ZigBee. Most, if not all, mobile devices have an RF component and this book tells the reader how to design and integrate that component in a very practical fashion. This book has been updated to include today's integrated circuit (IC) and system-level design issues as well as keeping its classic ‘wire lead’ material. Design Concepts and Tools Include The Basics: Wires, Resistors, Capacitors, Inductors Resonant Circuits: Resonance, Insertion Loss Filter Design: High-pass, Bandpass, Band-rejection Impedance Matching: The L Network, Smith Charts, Software Design Tools Transistors: Materials, Y Parameters, S Parameters Small Signal RF Amplifier: Transistor Biasing, Y Parameters, S Parameters RF Power Amplifiers: Automatic Shutdown Circuitry, Broadband Transformers, Practical Winding Hints RF Front-End: Architectures, Software-Defined Radios, ADC’s Effects RF Design Tools: Languages, Flow, Modeling

Read more less

The ESP32-S3 Parallel TFT not only offers more SRAM and ROM (compared to the S2 version), but with Bluetooth 5.0 it is also suitable for applications such as local monitoring and controlling. The built-in LCD driver ILI9488 uses 16-bit parallel lines to communicate with ESP32-S3, the main clock can be up to 20 MHz, which makes the display smooth enough for video displays. With this display, you can create more IoT display projects. Features Controller: ESP32-S3-WROOM-1, PCB Antenna, 16 MB Flash, 2 MB PSRAM, ESP32-S3-WROOM-1-N16R2 Wireless: Wifi & Bluetooth 5.0 LCD: 3.5-inch TFT LCD Resolution: 480x320 Color: RGB LCD Interface: 16-bit parallel LCD Driver: ILI9488 Touch Panel: Capacitive Touch Panel Driver: FT6236 USB: Dual USB Type-C (one for USB-to-UART and one for native USB) UART to UART Chip: CP2104 Power Supply: USB Type-C 5.0 V (4.0 V~5.25 V) Button: Flash button and reset button Mabee Interface: 1x I²C, 1x GPIO Backlight Controller: Yes MicroSD: Yes Arduino support: Yes Type-C Power Delivery: Not supported Operation temperature: -40℃ to +85℃ Dimension: 66 x 84.3 x 12 mm Weight: 52 g Downloads ESP32-S3 Datasheet GitHub Wiki LVGL Demo Code

Read more less

The Raspberry Pi SSD unlocks outstanding performance for I/O intensive applications on Raspberry Pi 5 and other devices, including super-fast startup when booting from SSD. It is a reliable, responsive, and high-performance PCIe Gen 3-compliant SSD capable of fast data transfer, available also with 256 GB capacity. Features 50k IOPS (4 kB random reads) 90k IOPS (4 kB random writes) Downloads Datasheet

Read more less

This Electronic Component Storage Box with 128 compartments is an essential tool for anyone handling small electronic components, particularly SMDs. It provides a practical, well-organized solution for storing a wide array of miniature parts like resistors, capacitors, diodes, and transistors. Each component can be stored in its own dedicated space, ensuring that the specific part you need for any project is always easy to locate. Whether you're a professional electronics engineer, a maker or a DIY enthusiast, this storage box offers the perfect blend of functionality and convenience. Its design helps eliminate clutter, optimize component management and keep your work environment tidy so you can focus on what really matters: building and troubleshooting electronic circuits. Dimensions of each compartment (L x W x H): 22 x 15 x 16 mm Dimensions of the box (L x W x H): 280 x 215 x 45 mm Included 1x Component Storage Box (incl. 128 compartments with lids and foam) 3x Spare lids 2x Sheets of blank labels 2x Box labels

Read more less

Pico Cube is a 4x4x4 LED cube HAT for Raspberry Pi Pico with 5 VDC operating voltage. Pico cube, a monochromatic Blue with 64 LEDs, is a fun way to learn programming. It is designed to perform incandescent operations with low energy consumptions, robust outlook, and easy installation that make people/kids/users learn the effects of LED lights with a different pattern of colors via the combination of software and hardware i.e. Raspberry Pi Pico. Features Standard 40 Pins Raspberry Pi Pico Header GPIO Based Communication 64 High-Intensity Monochromatic LEDs Individual LED access Each Layer Access Specifications Operating Voltage: 5 V Color: Blue Communication: GPIO LEDs: 64 Included 1x Pico Cube Base PCB 4x Layer PCB 8x Pillar PCB 2x Male Berg (1 x 20) 2x Female Berg (1 x 20) 70 LEDs Note: Raspberry Pi Pico is not included. Downloads GitHub Wiki

Read more less

Raspberry Pi Pico is a great solution for servo control. With the hardware PIO, the Pico can control the servos by hardware, without usage of times/ interrupts, and limit the usage of the MCU. Driving the six servos on this robotic arm takes very little MCU capacity, so the MCU can deal with other tasks easily. This 6 DOF robotic arm is a handy tool for teaching and learning robotics and Pico usage. There are five MG996s (four are needed in the assembly and one for backup) and three 25-kg servos (two needed in the assembly and one for backup). Note that for the servos the angle ranges from 0° to 180°. All the servos need to be preset to 90° (with logic HIGH 1.5 ms duty) before the assembly to avoid servo damage during movement. This product includes all the necessary items needed to create a robotic arm based on Pico and Micropython. Included 1x Raspberry Pi Pico 1x Raspberry Pi Pico Servo Driver 1x Set '6 DOF Robot Arm' 1x 5 V/5 A Power Supply 2x Backup Servo Downloads GitHub Wiki Assembly Guide Assembly Video

Read more less

The Naturebytes Wildlife Cam Case is the perfect weatherproof housing to take your Raspberry Pi, camera and sensors outdoors. It is compatible with all Raspberry Pi models, it has an IR Lens to optimise motion detection, a camera strap so you can set up your ideal wildlife shots or you can take advantage of the electronics mount, with space for additional sensors, power solutions and upgrades….and it looks awesome! Features Weatherproof (certified IP55) Electronics mount compatible with Raspberry Pi models (including all model A+, B, B, B+ and Zero models) Fresnel IR lens to optimise motion detection Clip and hinge opening for easy access to the Pi’s ports and internal components Nylon camera attachment strap for securing outside Can be secured with a padlock Fasteners and spacers for attaching electronics Rear cable access Rear attachments for modular upgrades No soldering required Downloads Assembly Guides

Read more less

Based on the SparkFun GPS-RTK2 designs, the SparkFun GPS-RTK-SMA raises the bar for high-precision GPS and is the latest in a line of powerful RTK boards featuring the ZED-F9P module from u-blox. The ZED-F9P is a top-of-the-line module for high accuracy GNSS and GPS location solutions, including RTK capable of 10mm, three-dimensional accuracy. With this board, you will be able to know where your (or any object's) X, Y, and Z location is within roughly the width of your fingernail! The ZED-F9P is unique in that it is capable of both rover and base station operations. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins if you prefer to use a breadboard. We've included a rechargeable backup battery to keep the latest module configuration and satellite data available for up to two weeks. This battery helps 'warm start' the module decreasing the time-to-first-fix dramatically. This module features a survey-in mode allowing the module to become a base station and produce RTCM 3.x correction data. Based on your feedback, we switched out the u.FL connector and included an SMA connector in this version of the board. The number of configuration options of the ZED-F9P is incredible! Geofencing, variable I²C address, variable update rates, even the high precision RTK solution can be increased to 20Hz. The GPS-RTK2 even has five communications ports which are all active simultaneously: USB-C (which enumerates as a COM port), UART1 (with 3.3V TTL), UART2 for RTCM reception (with 3.3V TTL), I²C (via the two Qwiic connectors or broken out pins), and SPI. SparkFun has also written an extensive Arduino library for u-blox modules to easily read and control the GPS-RTK-SMA over our Qwiic Connect System. Leave NMEA behind! Start using a much lighter weight binary interface and give your microcontroller (and its one serial port) a break. The SparkFun Arduino library shows how to read latitude, longitude, even heading and speed over I²C without the need for constant serial polling. Features Concurrent reception of GPS, GLONASS, Galileo and BeiDou Receives both L1C/A and L2C bands Voltage: 5 V or 3.3 V, but all logic is 3.3 V Current: 68 mA - 130 mA (varies with constellations and tracking state) Time to First Fix: 25 s (cold), 2 s (hot) Max Navigation Rate: PVT (basic location over UBX binary protocol) - 25 Hz RTK - 20 Hz Raw - 25 Hz Horizontal Position Accuracy: 2.5 m without RTK 0.010 m with RTK Max Altitude: 50 km Max Velocity: 500 m/s Weight: 6.8 g Dimensions: 43.5 mm x 43.2 mm 2 x Qwiic Connectors

Read more less

KrakenSDR is a phase-coherent software-defined radio with five RTL-SDRs KrakenSDR is a 5-channel, RX-only, software-defined radio (SDR) based on the RTL-SDR and designed for phase-coherent applications and experiments. Phase-coherent SDR opens the door to some very interesting applications, including radio direction finding, passive radar, and beam forming. You can also use KrakenSDR as five separate radios. KrakenSDR is an upgraded version of the previous product, KerberosSDR. It provides a fifth receive channel, automatic phase-coherence synchronization capabilities, bias tees, a new RF design with cleaner spectrum, USB Type-C connectors, a heavy-duty enclosure, upgraded open source DAQ and DSP software, and an upgraded Android app for direction finding. RTL-SDR KrakenSDR makes use of five custom RTL-SDR circuits consisting of R820T2 and RTL2832U chips. The RTL-SDR is a well-known, low-cost software-defined radio (SDR), but throw five units together and using them on the same PC will not make them 'phase coherent;' each one will receive signals at a slightly different phase offset from the others. This makes it difficult or impossible to achieve a high degree of precision when measuring relationships between signals that arrive at different antennas. To achieve phase coherence, KrakenSDR drives all five RTL-SDR radios with a single clock source, and contains internal calibration hardware to allow the phase relationship between channels to be measured precisely and corrected for. Additionally, the overall design of KrakenSDR works to ensure phase stability, with care taken in the areas of heat management, driver configuration, power supply, and external-interference mitigation. Features Five-channel, coherent-capable RTL-SDR, all clocked to a single local oscillator Built-in automatic coherence synchronization hardware Automatic coherence synchronization and management via provided Linux software 24 MHz to 1766 MHz tuning Range (standard R820T2 RTL-SDR range, and possibly higher with hacked drivers) 4.5 V bias tee on each port Core DAQ and DSP software is open source and designed to run on a Raspberry Pi 4 Direction-finding software for Android (free for non-commercial use) Applications Physically locating an unknown transmitter of interest (e.g. illegal or interfering broadcasts, noise transmissions, or just as a curiosity) HAM radio experiments such as radio fox hunts or monitoring repeater abuse Tracking assets, wildlife, or domestic animals outside of network coverage through the use of low power beacons Locating emergency beacons for search-and-rescue teams Locating lost ships via VHF radio Passive radar detection of aircraft, boats, and drones Traffic-density monitoring via passive radar Beamforming Interferometry for radio astronomy Specifications Bandwidth 2.56 MHz RX Channels 5 Frequency Range 24-1766 MHz Radio Tuner 5x R820T2 Radio ADC 5x RTL2832U ADC Bit Depth 8-bits Oscillator Stability 1 PPM Typical Power Consumption 5 V/2.2 A (11 W) Enclosure Type Heavy-duty CNC Aluminum Dimensions 177 x 112.3 x 25.9 mm Weight 560 g Included 1x KrakenSDR (fully assembled and installed) with Aluminum enclosure 1x Manual Required USB Type-C cable 5 V/2.4 A USB-C power supply Antennas Raspberry Pi 4 (for computing) Android phone/tablet with mobile-hotspot capabilities (with direction finding) Downloads Wiki Android App

Read more less

Create lightning with the touch of your fingers or the clap of your hands The Plasma Magic Ball is a cutting-edge tech gadget and an eye-catching piece of art. Inside the glass sphere, a special gas mixture creates mesmerizing light effects when activated by high-frequency current – like holding a storm in your hands. Perfect for use at home, in the office, schools, hotels, or bars, it’s a unique decorative element that sparks curiosity. Looking for a fun and unusual gift? The Plasma Magic Ball is a great choice for friends and family alike. Despite its stunning effects, the Plasma Magic Ball uses very little electricity. The glass itself is made of specially hardened, high-strength material and can withstand temperatures of up to 522°C (972°F). Specifications Material Plastic Ball diameter 6 inch (15 cm) Input voltage 220 V Output voltage 12 V Power 15 W Dimensions 25 x 15.5 x 15.5 cm

Read more less

The Arduino Student Kit is a hands-on, step-by-step remote learning tool for ages 11+: get started with the basics of electronics, programming, and coding at home. No prior knowledge or experience is necessary as the kit guides you through step by step. Educators can teach their class remotely using the kits, and parents can use the kit as a homeschool tool for their child to learn at their own pace. Everyone will gain confidence in programming and electronics with guided lessons and open experimentation. Learn the basics of programming, coding and electronics including current, voltage, and digital logic. No prior knowledge or experience is necessary as the kit guides you through step by step. You’ll get all the hardware and software you need for one person, making it ideal to use for remote teaching, homeschooling, and for self-learning. There are step-by-step lessons, exercises, and for a complete and in-depth experience, there’s also extra content including invention spotlights, concepts, and interesting facts about electronics, technology, and programming. Lessons and projects can be paced according to individual abilities, allowing them to learn from home at their own level. The kit can also be integrated into different subjects such as physics, chemistry, and even history. In fact, there’s enough content for an entire semester. How educators can use the kit for remote teaching The online platform contains all the content you need to teach remotely: exclusive learning guidance content, tips for remote learning, nine 90-minute lessons, and two open-ended projects. Each lesson builds off the previous one, providing a further opportunity to apply the skills and concepts students have already learned. They also get a logbook to complete as they work through the lessons. The beginning of each lesson provides an overview, estimated completion times, and learning objectives. Throughout each lesson, there are tips and information that will help to make the learning experience easier. Key answers and extension ideas are also provided. How the kit helps parents homeschool their children This is your hands-on, step-by-step remote learning tool that will help your child learn the basics of programming, coding, and electronics at home. As a parent, you don’t need any prior knowledge or experience as you are guided through step-by-step. The kit is linked directly into the curriculum so you can be confident that your children are learning what they should be, and it provides the opportunity for them to become confident in programming and electronics. You’ll also be helping them learn vital skills such as critical thinking and problem-solving. Self-learning with the Arduino Student Kit Students can use this kit to teach themselves the basics of electronics, programming, and coding. As all the lessons follow step-by-step instructions, it’s easy for them to work their way through and learn on their own. They can work at their own pace, have fun with all the real-world projects, and increase their confidence as they go. They don’t need any previous knowledge as everything is clearly explained, coding is pre-written, and there’s a vocabulary of concepts to refer to. The Arduino Student Kit comes with several parts and components that will be used to build circuits while completing the lessons and projects throughout the course. Included in the kit Access code to exclusive online content including learning guidance notes, step-by-step lessons and extra materials such as resources, invention spotlights and a digital logbook with solutions. 1x Arduino Uno 1x USB cable 1x Board mounting base 1x Multimeter 1x 9 V battery snap 1x 9 V battery 20x LEDs (5x red, 5x green, 5x yellow & 5x blue ) 5x Resistors 560 Ω 5x Resistors 220 Ω 1x Breadboard 400 points 1x Resistor 1 kΩ 1x Resistor 10 kΩ 1x Small Servo motor 2x Potentiometers 10 kΩ 2x Knob potentiometers 2x Capacitors 100 uF Solid core jumper wires 5x Pushbuttons 1x Phototransistor 2x Resistors 4.7 kΩ 1x Jumper wire black 1x Jumper wire red 1x Temperature sensor 1x Piezo 1x Jumper wire female to male red 1x Jumper wire female to male black 3x Nuts and Bolts

Read more less

Based on direct thermal technology, the Niimbot D110 label printer offers a printing experience without ink, toner or ribbons, making it a cost-effective solution compared to traditional printers. Its compact size and light weight make it easy to transport and fits easily into any pocket. With Bluetooth connectivity and a built-in 1500 mAh battery, this wireless mini printer allows you to print from up to 10 meters away, giving you flexibility on the go, whether you're printing from your smartphone or tablet. The "Niimbot" app (available for iOS and Android) offers a variety of free templates for customizing labels. Specifications Model D110_M (Upgraded Version 2024) Material ABS Resolution 203 DPI Printing speed 30-60 mm/s Print width 12-15 mm Printing technology Thermal Operating temperature 5°C ~ 45°C (41°F ~ 113°F) Battery capacity 1500 mAh Charging interface USB-C Charging time 2 hours Connection Bluetooth 4.0 Wireless distance 10 m Dimensions 98 x 76 x 30 mm Weight 149 g Included 1x Niimbot D110 Label Printer 1x Label tape (12 x 40 mm) 1x USB cable 1x Manual Downloads iOS App Android App

Read more less

This versatile microscope with upgraded Plus stand covers a wide magnification range (60-240x, 18-720x, 1560-2040x) with 3 lenses. With this digital microscope, you can examine plants, insects, gems and coins, or do electronic work such as repairing or making circuit boards. Features Upgraded Plus stand, the spliced base plate, which is easy to disassemble and assemble Turn into a large base, from 18 x 20 cm to 40 x 30 cm Add a tool holder and bottom storage to keep your desktop tidy A pair of soldering helping hands to help secure the PCB or other objects An anti-static and high-temperature resistant silicone pad/soldering mat to help you complete your work better The Pro Metal Stands features a strong metal stand adjustable in various directions and angle 3-Lens Digital Microscope allowing you to observe objects ranging from soldering and repairing to coins, and even for biological slides. Lens A (18-720x) Lens D (1800-2040x) Lens L (60-240x) Observation distance: Lens A (12-320 mm) Lens L (90-300 mm) Lens D (4-5 mm) Specifications AD246SM-Plus AD249SM-Plus Magnification Lens A 18-720 18-720 Focus range 12-320 mm 12-320 mm Lens D 1800-2040 1800-2040 Focus range 4-5 mm 4-5 mm Lens L 60-240 60-240 Focus range 90-300 mm 90-300 mm Screen size 7 inch (17.8 cm) 10 inch (25.7 cm) Video resolution (max.) UHD 2880x2160 (24fps) UHD 2880x2160 (24fps) Video format MP4 MP4 Photo format JPG JPG Photo resolution 5600x2400 (with interpolation) 5600x2400 (with interpolation) Frame rate Max. 120fps Max. 120fps HDMI output Yes (support dual-screen display) Yes (only HDMI monitor displays) PC output Yes Yes Stand size 30 x 40 x 33 cm 30 x 40 x 33 cm Included 1x Andonstar AD246SM-Plus Digital Microscope 3x Lenses (A, D & L) 1x Metal stand with 2 LEDs 1x Soldering mat 1x Beam 1x Column 1x Tool holder 1x Soldering Helping Hands 1x Slide holder 1x 32 GB microSD card 1x USB cable 1x Switch cable 1x HDMI cable 1x Remote control 5x Prepared Slides 1x Observation box 1x Tweezers 1x Manual Downloads Manual Software

Read more less

This ESP32 S3 7-inch IPS 5-point capacitive touch display with an ultra-high resolution of 1024 x 600 pixels is ideal for IoT applications. It is ideal for applications such as home automation. An integrated SD card enables recording/playback of stored data. There are also two Mabee/Grove connectors to connect various sensors to this board to create personal prototype projects in no time. Specifications Controller: ESP32-S3-WROOM-1, PCB antenna, 16 MB Flash, 8 MB PSRAM, ESP32-S3-WROOM-1-N16R8 Wireless: Wifi & Bluetooth 5.0 LCD: 7-inch High Lightness IPS FPS: >30 Resolution: 1024 x 600 LCD interface: RGB 565 Touch panel: Capacitive 5-point touch Touch panel driver: GT911 USB: Dual USB-C (one for USB-to-UART and one for native USB) UART to UART chip: CP2104 Power supply: USB-C 5.0 V (4.0 V~5.25 V) Button: Flash button and reset button Mabee interface: 1x I²C, 1x GPIO MicroSD: Yes Arduino support: Yes Type-C Power Delivery: Not supported Operation temperature: −40 to +85°C Downloads Wiki GitHub ESP32-S3 Datasheet Screen touch coordinates calibration

Read more less