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

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Pico Cube is a 4x4x4 LED cube HAT for Raspberry Pi Pico with 5 VDC operating voltage. Pico cube, a monochromatic Green 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: Green 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

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Pico Cube is a 4x4x4 LED cube HAT for Raspberry Pi Pico with 5 VDC operating voltage. Pico cube, a monochromatic Red 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: Red 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

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The short-wave technique has a very particular appeal: It can easily bridge long distances. By reflecting short-wave signals off the conductive layers of the ionosphere, they can be received in places beyond the horizon and therefore can reach anywhere on earth. Although technology is striving for ever higher frequencies, and radio is usually listened to on FM, DAB+, satellite or the Internet, modern means of transmission require extensive infrastructure and are extremely vulnerable. In the event of a global power outage, there is nothing more important than the short-wave. Amateur radio is not only a hobby, it’s also an emergency radio system! Elektor’s SDR-Shield is a versatile shortwave receiver up to 30 MHz. Using an Arduino and the appropriate software, radio stations, morse signals, SSB stations, and digital signals can be received. In this book, successful author and enthusiastic radio amateur, Burkhard Kainka describes the modern practice of software defined radio using the Elektor SDR Shield. He not only imparts a theoretical background but also explains numerous open source software tools.

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The short-wave technique has a very particular appeal: It can easily bridge long distances. By reflecting short-wave signals off the conductive layers of the ionosphere, they can be received in places beyond the horizon and therefore can reach anywhere on earth. Although technology is striving for ever higher frequencies, and radio is usually listened to on FM, DAB+, satellite or the Internet, modern means of transmission require extensive infrastructure and are extremely vulnerable. In the event of a global power outage, there is nothing more important than the short-wave. Amateur radio is not only a hobby, it’s also an emergency radio system! Elektor’s SDR-Shield is a versatile shortwave receiver up to 30 MHz. Using an Arduino and the appropriate software, radio stations, morse signals, SSB stations, and digital signals can be received. In this book, successful author and enthusiastic radio amateur, Burkhard Kainka describes the modern practice of software defined radio using the Elektor SDR Shield. He not only imparts a theoretical background but also explains numerous open source software tools.

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Features Implements CAN V2.0B at up to 1 Mb/s Industrial standard 9 pin sub-D connector OBD-II and CAN standard pinout selectable. Changeable chip select pin Changeable CS pin for TF card slot Changeable INT pin Screw terminal that easily to connect CAN_H and CAN_L Arduino Uno pin headers Micro SD card holder 2 Grove connectors (I2C and UART) SPI Interface up to 10 MHz Standard (11 bit) and extended (29 bit) data and remote frames Two receive buffers with prioritized message storage

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Features ATmega32U4 with Arduino Leonardo bootloader on the board MCP2515 CAN Bus controller and MCP2551 CAN Bus transceiver OBD-II and CAN standard pinout selectable at the sub-D connector Compatible with Arduino IDE Parameter Value MCU ATmega32U4(with Arduino Leonardo bootloader) Clock Speed 16 MHz Flash Memory 32 KB SRAM 2.5 KB EEPROM 1 KB Operate Voltage（CAN-BUS） 9 V - 28 V Operate Voltage （MicroUSB） 5 V Input Interface sub-D Included CANBed PCBA sub-D connector 4PIN Terminal 2 x 4PIN 2.0 Connector 1 x 9x2 2.54 Header 1 x 3x2 2.54 Header

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The starter kit for Jetson Nano is one of the best kits for beginners to get started with Jetson Nano. This kit includes 32 GB MicroSD card, 20 W adapter, 2-pin jumper, camera, and micro-USB cable. Features 32 GB High-performance MicroSD card 5 V 4 A power supply with 2.1 mm DC barrel connector 2-pin jumper Raspberry Pi camera module V2 Micro-B To Type-A USB cable with DATA enabled

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The universal 4 Pin connector is a white 4-pin buckled connector used on Stem, Twigs and Grove cables. The pin spacing is 2 mm. There are 10 connectors per bag. They can be used in DIY projects.

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Features Selectable output format: Uart or Wiegand. 4Pins Electronic Brick Interface High Sensitivity Specifications Dimensions: 44 mm x 24 mm x9.6 mm Weight: 15 g Battery: Exclude Voltage: 4.75 V - 5.25 V Working Frequency: 125 kHz Sensing Distance(Max): 70 mm TTL Output: 9600 baud rate, 8 data bits, 1 stop bit, and no verify bit Wiegand Output: 26 bits Wiegand format, 1 even verify bit, 24 data bits, and 1 odd verify bit

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Grove 3-Axis Digital Accelerometer (LIS3DHTR) is a low-cost 3-Axis accelerometer in a bundle of Grove products. It is based on the LIS3DHTR chip which provides multiple ranges and interfaces selection. You can never believe that such a tiny 3-Axis accelerometer can support I²C, SPI, and ADC GPIO interfaces, which means you can choose any way to connect with your development board. Besides, this accelerometer can also monitor the surrounding temperature to tune the error caused by it. Features Measurement range: ±2g, ±4g, ±8g, ±16g, multiple ranges selection. Multiple interfaces option: Grove I²C interface, SPI interface, ADC interface. Temperature adjustable: able to adjust and tune the error caused by temperature. 3/5V power supply Specifications Power Supply 3/5V Interfaces IC/SPI/GPIO ADC I²C address Default 0x19, can be changed to 0x18 when connecting SDO Pin with GND ADC GPIO Power input 0-3.3V Interruption An interruption Pin reserved SPI Mode set up Connect the CS Pin with GND Included 1x Grove 3-Axis Digital Accelerometer (LIS3DHTR) 1x Grove cable Downloads LIS3DHTR Datasheet Hardware schematic Arduino Library

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Unlike most kits, the Grove Beginner Kit for Arduino is an all-in-one kit, no breadboard, no soldering, even no wiring is needed. The kit is powered by one Arduino compatible Board (Seeeduino Lotus) together with 10 additional Grove Arduino sensors all in one piece of the board. All the modules have been connected to the Seeeduino(Microcontroller) through the PCB stamp holes so no Grove cables are needed to connect. This is perfect for educational fields where frustrating wiring and soldering are no longer needed. Of course, you can also take the modules out and use Grove cables to connect the modules. You can build any Arduino project you like with this Grove Beginner Kit For Arduino. Included 1x Grove Beginner Kit For Arduino Board 1x Micro USB Cable 6x Grove Cables Included onboard 1x Grove LED 1x Grove Buzzer 1x Grove OLED Display 0.96" 1x Grove Button 1x Grove Rotary Potentiometer 1x Grove Light 1x Grove Sound 1x Grove Temperature & Humidity Sensor 1x Grove Air Pressure Sensor 1x Grove 3-Axis Accelerator 1x Seeeduino Lotus

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This is an add-on kit for the Seeed Studio Grove Beginner Kit for Arduino. Applications Suitable for Arduino beginners Suitable for infrared control and motion detect Suitable for getting started with open-source hardware and Arduino coding Included 1x Grove Water Atomization 1x Grove Mini Fan 1x Grove Servo 1x Grove Ultrasonic Distance Sensor 1x Grove Infrared Receiver 1x Grove Mini PIR Motion Sensor 1x Grove Green Wrapper 1x Grove Blue Wrapper 5x Grove Cable 1x Infrared Remote Control Key 1x Ultrasonic Sensor Bracket Set 1x Motor Bracket Set 1x Servo Base

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This Grove CAN-BUS Module based on GD32E103 adopts a brand-new design, uses the cost-effective and high-performance GD32E103 microcontroller as the main control and cooperates with a firmware we wrote to complete the function of the serial port to CAN FD. Features Support CAN communication: Implements CAN FD at up to 5 Mb/s Easy to program: Support AT command which enables simple serial port programming Grove ecosystem: 20 x 40 x 10 mm small size, 4-pin Grove connector to plug and play, Arduino compatible This Grove CAN-BUS Module supports CAN FD(CAN with Flexible Data-Rate) communication, which is an extension to the original CAN protocol as specified in ISO 11898-1 that responds to increased bandwidth requirements in automotive networks. In CAN FD, the data rate (i.e. number of bits transmitted per second) is increased to be 5 times faster than the classic CAN (5 Mbit/s for the data payload only, the arbitration bit rate is still limited to 1Mbit/s for compatibility). It supports AT command which enables simple serial port programming. This Grove CAN-BUS Module is based on GD32E103 with a frequency up to 120 MHz. It has a flash size from 64 KB to 128 KB and an SRAM size from 20 KB to 32 KB. Applications Car hacking: allows different parts of the vehicle to talk to each other, including the engine, the transmission, and the brakes. Windows, doors, and mirror adjustment. 3D Printers Building automation Lighting control systems Medical instruments and equipment Specifications MCU GD32E103 UART baud rate Up to 115200 (default 9600) CAN FD baud rate Up to 5 Mb/s Indicator TX and RX led Working voltage 3.3 V Grove connector 4-pin Grove connector to plug and play Size 20 x 40 x 10 mm Downloads Datasheet GitHub

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The Grove SCD30 is an Arduino-compatible 3-in-1 environmental sensor for precise CO₂, temperature, and humidity measurements. Powered by the Sensirion SCD30 and advanced Non-Dispersive Infrared (NDIR) technology, it delivers high accuracy across a wide measurement range. The sensor also determines humidity and temperature through smart algorithms that model and compensate for external heat sources. Features NDIR CO2 sensor technology: embedded with Sensirion SCD30 Multi-function: Integrates temperature and humidity sensor on the same sensor module High precision and wide measurement accuracy: ±(30 ppm + 3%) between 400 ppm to 10000 ppm Superior stability: Dual-channel detection Easy project operation: Digital interface I²C, Breadboard-friendly, Grove-compatible Best performance-to-price ratio Application Ideas Air Purifier Environmental Monitoring Plant Environmental Monitoring system Arduino weather station

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The Grove DHT11 Temperature & Humidity Sensor is a high-quality, low-cost digital temperature, and humidity sensor based on the DHT11 module. It is the most common temperature and humidity module for Arduino and Raspberry Pi. It is widely favored by hardware enthusiasts for its many advantages such as low power consumption and excellent long-term stability. Relatively high measurement accuracy can be obtained at a very low cost. The single-bus digital signal is output through the built-in ADC, which saves the I/O resources of the control board. Features Dimensions: 40 x 20 x 8 mm Weight: 10 g Battery: Exclude Input Voltage: 3.3 V & 5 V Measuring Current: 1.3 mA- 2.1 mA Measuring Humidity Range: 5% - 95% RH Measuring Temperature Range: -20 ℃ - 60 ℃

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Features Integrated Cold-Junction Compensation Supported Types (designated by NIST ITS-90): Type K, J, T, N, S, E, B and R Four Programmable Temperature Alert Outputs: Monitor Hot- or Cold-Junction Temperatures Detect rising or falling temperatures Up to 255°C of Programmable Hysteresis Programmable Digital Filter for Temperature Low Power Dimensions: 20 mm x 40 mm x 18 mm Weight: 18 g Application Petrochemical Thermal Management Hand-Held Measurement Equipment Industrial Equipment Thermal Management Ovens Industrial Engine Thermal Monitor Temperature Detection Racks Downloads Eagle Files Github library Datasheet

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With the help of the Grove I²C connector, only 2 signal pins and 2 power pins are needed. You don't even need to care about how to connect these pins. Just plug it into the I²C interface on Seeeduino or Arduino/Raspberry Pi+baseshield via the Grove cable. No complicated wiring, no soldering, no need to worry about burning the LCD caused by the wrong current limiting resistor. Easy peasy. Specifications Battery: Exclude Input Voltage: 5 V Dimensions: 83 x 44 x 13 mm Weight: 42 g

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Grove Piezo Vibration Sensor is suitable for measurements of flexibility, vibration, impact and touch. The module is based on PZT film sensor LDT0-028. When the sensor moves back and forth, a certain voltage will be created by the voltage comparator inside of it. Therefore, outputs high & low levels. In spite of the fact that it has a high receptivity for strong impacts, a wide dynamic range (0.001 Hz~1000 MHz) also guarantees excellent measuring performance. Finally, you can adjust its sensitivity by adjusting the potentiometer with a screw. Features Standard grove socket Wide dynamic range：0.001 Hz~1000 MHz Adjustable sensitivity High receptivity for strong impact Applications Vibration Sensing in Washing Machine Low Power Wake-up Switch Low-Cost Vibration Sensing Car Alarms Body Movement Security Systems Downloads Download Wiki PDF Grove - Piezo Vibration Sensor Eagle File Grove - Piezo Vibration Sensor Schematic PDF File Grove - Piezo Vibration Sensor PCB PDF File Piezo Vibration Sensor Datasheet

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This Grove - PIR Motion Sensor(Passive Infrared Sensor) can detect infrared signals caused by motion. If the PIR sensor notices the infrared energy, the motion detector is triggered and the sensor outputs HIGH on its SIG pin. The detecting range and response speed can be adjusted by 2 potentiometers soldered on its circuit board, The response speed is from 0.3s - 25s, and max 6 meters of detecting range. The Grove - PIR Motion Sensor(Passive Infrared Sensor) is an easy-to-use motion sensor with Grove compatible interface. Simply connecting it to Base Shield and programming it, it can be used as a suitable motion detector for Arduino projects. For example, the PIR Motion Sensor is commonly used in security alarm systems and automatic lighting applications. Features Grove compatible interface Voltage range: 3 V – 5 V Size: 20 mm x 40 mm Detecting angle: 120 degree Detecting Max distance: 6m (3m by default) Adjustable detecting distance and holding time Applications Motion Sensor Motion Detector Security Alarm System Human Detection System Technical Specifications Dimensions 40 mm x 20 mm x 15 mm Weight 12 g Battery Exclude Voltage range 3 V – 5 V Detecting angle 120 degree Detecting distance max 6m (3m by default)

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The Sensirion SGP30 is a digital multi-pixel gas sensor that can easily integrate with air purifiers, demand-controlled ventilation, and other IoT applications. Powered by Sensirion’s CMOSens®technology, it integrates a complete sensor system on a single chip featuring a digital I2C interface, a temperature-controlled micro hotplate, and two preprocessed indoor air quality signals. As the first metal-oxide gas sensor featuring multiple sensing elements on one chip, the SGP30 provides more detailed information about air quality. Features Multi-pixel gas sensor for indoor air quality applications Outstanding long-term stability I2C interface with TVOC and CO2eq output signals Low power consumption Chip module tape and reel packaged, reflow solderable Specifications Weight: 9g Battery: Exclude Working Voltage: 3.3V/5V Output range: TVOC-0 ppb to 60000ppb / CO₂eq - 400 ppm to 60000 ppm Sampling rate: 1 Hz

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Want to make a UV detector to know the UV index when you are under the sun? Grove Sunlight Sensor is a multi-channel digital light sensor, which has the ability to detect UV-light, visible light and infrared light. This device is based on SI1151, a new sensor from SiLabs. The Si1151 is a low-power, reflectance-based, infrared proximity, UV index and ambient light sensor with I²C digital interface and programmable-event interrupt output. This device offers excellent performance under a wide dynamic range and a variety of light sources including direct sunlight. Grove Sunlight Sensor includes an on-board Grove connector, which helps you to connect it to your Arduino easily. You can use this device for making some projects which need to detect the light, such as a simple UV detector for your Raspberry Pi weather station, or a smart irrigation system using Arduino if you need to monitor the visible spectrum. Features Multi-channel digital light sensor: can detect UV-light, visible light and infrared light Wide spectrum detection range: 280-950 nm Easy to use: I²C Interface (7-bit), compatible with Grove port, just plug-and-play Programmable configuration: Versatile for various applications 3.3/5 V Supply, suitable for many microcontrollers and SBCs Applications Light detection Smart irrigation system DIY weather station Included 1x Grove Sunlight Sensor 1x Grove Cable Downloads Schematic in PDF Schematic in Eagle File Si1145 Datasheet GitHub Repositoriy for Grove Sunlight Sensor Spectrum Lumen (unit) Ultraviolet index

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Grove is a modular electronic platform for quick prototyping. Every module has one function, such as touch sensing, creating audio effect and so on. Just plug the modules you need to the base shield, then you are ready to test your idea buds. This Grove Starter Kit for Arduino is upgraded version of our Grove Starter Kit plus. Frequently used modules have been included in this kit to help you create your concept. The changes Optimize the internal slot structure, using technology to make our products inside plastic boxes more regularized, more protective. Upgrade Instructions for creative poster form, more streamlined and intuitive description for each Grove-Sensor. Grove-LED increased from three separate PCBA into a. But will still provide three different colors of LED light bulbs for you. To consider the overall playability of the product experience, we optimized the two Grove-Sensors. Grove-Sound Sensor upgrade to V1.2; Grove-Temperature Sensor upgrade to the new SMD V1.1. Data line upgrade from 24AWG Grove Cable is 26 AWG Grove Cable, wire length is adjusted to the length of 200mm unified model, the number was adjusted to 10. Screen perfect upgrade for the Grove-LCD RGB Backlight, color screen makes further enhanced playability experience. Included 1x Base Shield 1x Grove LCD RGB Backlight 1x Grove Smart Relay 1x Grove Buzzer 1x Grove Sound Sensor 1x Grove Touch Sensor 1x Grove Rotary Angle Sensor 1x Grove Temperature Sensor 1x Grove LED 1x Grove Light Sensor 1x Grove Button 1x DIP LED Blue-Blue 1x DIP LED Green-Green 1x DIP LED Red-Red 1x Mini Servo 10x Grove Cables 1x 9 V to Barrel Jack Adapter 1x Grove starter kit Manual 1x Green Plastic Box Downloads Schematic (PDF) Schematic (Eagle) Grove Button Source File Grove LED Source File Grove Buzzer Source File Grove Rotary Angle Sensor Source File Grove Relay Source File Base Shield Source File Grove Sound Sensor Source File Grove Buzzer Source File

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