Holybro Sik Radio Telemetry V3-100 mW 433 Mhz

SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier The SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier is a compact audio amplification module designed to deliver clear and efficient stereo sound from low-power audio sources. It solves the need for adding audio output to small electronic projects without bulky components or complex circuits. This module is suitable for students, makers, engineers, educators, and startups who want an easy way to integrate stereo audio into DIY electronics, learning kits, and embedded system prototypes. This stereo mini Class-D audio amplifier is commonly used in robotics, IoT devices, automation systems, and portable electronics that require lightweight and power-efficient audio output. It can be easily interfaced with platforms such as Arduino, Raspberry Pi, and ESP32 to drive small speakers in projects like voice alerts, sound feedback systems, and interactive devices. The simple design and stable performance make it easy to integrate into both prototype builds and finished products, enabling reliable audio output with minimal setup effort. Features: Two-channel stereo Class-D audio amplifier for clear sound output Operates on a 5V power supply, ideal for embedded projects High efficiency design with low heat generation Compact size suitable for space-constrained applications Drives small speakers for stereo audio output Compatible with Arduino, Raspberry Pi, ESP32, and other audio-enabled projects

RS2205 2300KV Brushless DC Motor for Drone (Counterclockwise Rotation) The RS2205 2300kV Brushless DC Motor is a high-performance brushless DC motor for drone applications, specially designed for FPV racing and high-speed quadcopters like the QAV250 and QAV300. With a powerful 2300kV rating, this motor delivers high RPM and efficient thrust, making it ideal for pilots who want responsive control and fast acceleration. Built using durable, high-quality materials, this brushless DC motor offers reliable performance while remaining affordable for beginners learning the fundamentals of FPV flying. One of its standout features is the self-cooling design, where specially engineered cooling fins draw air through the motor coils from the base, increasing airflow as the motor spins faster to maintain optimal operating temperatures. The motor also uses curved N52 Neodymium magnets for maximum magnetic efficiency and genuine Japanese NMB bearings, which ensure smoother rotation and can reduce motor temperature by up to 30%, improving both durability and flight performance. Features: Active Cooling Fins made of High Strength N52 Neodymium Magnets greatly reduce the working motor temperature. Lightweight and low-CG design. Japanese bearings ensure high-performance delivery. Improve anti-off ring performance to ensure stable and safe operation.

DFRobot Gravity 7/24 Industrial Analog pH Sensor Meter Kit for Arduino The DFRobot Gravity 7/24 Industrial Analog pH Sensor Meter Kit for Arduino is a high-precision Analog pH Sensor designed for professional and industrial applications requiring continuous pH monitoring. This Arduino pH Sensor uses an industrial-grade glass membrane electrode with low impedance, delivering fast response, excellent thermal stability, and stable performance over long periods. It supports a full measurement range of 0 pH to 14 pH with linear voltage output, ensuring accurate and reliable readings. The sensor integrates easily through a BNC connector and PH2.0 interface, allowing direct connection to any Arduino analog input. Its reference system, based on Ag/AgCl gel electrolyte with a PTFE membrane, provides strong anti-pollution characteristics and prevents clogging, making it an ideal industrial pH sensor for Arduino for water treatment systems, environmental monitoring, and laboratory analysis. Attention: The probe's bottle top contains protective fluids (3.3mol/L KCL). Even if the bottle cap is tightly fastened, some protective liquid may leak around it, resulting in white crystals. However, as long as the bottle top contains protective liquid, the probe's life and accuracy will be unaffected. Please use it with confidence. It is recommended that the white crystals be returned to the bottle cap's protective liquid. Features Industrial-grade Analog pH Sensor for accurate measurement Compatible with Arduino and other microcontrollers Measures pH range from 0 to 14 Fast response with high stability BNC connector for secure sensor connection Plug-and-play PH2.0 analog interface Built-in power indicator LED Suitable for long-term online monitoring Low maintenance and long sensor life Ideal for water quality and lab applications Applications Water Quality Surveillance Aquaculture

HQProp 7X3.5X3 Light Grey (2CW+2CCW)-Poly Carbonate Triblade Propeller HQProp, short for “High-Quality Propellers,” is a well-known brand in the field of drone and multirotor propellers. HQProp produces a wide range of propellers designed for various types of drones, including quadcopters, multirotors, FPV racing drones, freestyle drones, and more. The brand is popular among drone enthusiasts and pilots for its focus on quality, performance, and innovation. HQProp has gained popularity within the drone community, particularly among FPV (First-Person View) racing and freestyle enthusiasts, for its innovative designs and commitment to delivering top-notch propeller options. Drone pilots often experiment with different propellers to find the best balance between thrust, efficiency, and maneuverability for their specific needs.  It’s important to note that propeller selection can have a significant impact on the overall performance and flight characteristics of a drone. Choosing the right propellers for a drone involves considering factors such as drone size, weight, motor specifications, flight characteristics, and intended use. Features: Wide variety, available in multiple sizes, pitches, blade counts, and materials for different flying needs such as speed, stability, and efficiency Material choices, made from polycarbonate, carbon fiber, and composites, affecting durability, thrust, and efficiency Advanced design, innovative blade shapes and aerodynamics improve performance and reduce noise Ideal for FPV, popular in racing and freestyle drones for fast acceleration, high speed, and agility Broad compatibility, supports various motor setups and drone frame types, including standard and inverted configurations Color options, available in multiple colors for customization and easy identification Performance tuning, different sizes and pitches allow optimization of speed, control, or flight time Smart selection needed, choosing the right propeller based on motor specs, drone weight, and usage enhances overall performance

Holybro S500 V2 DIY Drone Kit (Included Motor, Prop and ESC) The Holybro S500 V2 DIY Drone Kit (Included Motor, Prop and ESC) is a complete DIY drone kit designed for builders and enthusiasts who want a reliable, high-performance UAV platform right out of the box. This all-in-one kit includes quality motors, propellers, Electronic Speed Controllers (ESCs), and a durable S500 V2 frame, giving you everything you need to assemble a capable multirotor drone with confidence. Whether you're a hobbyist looking to build your first drone or a professional seeking a customizable platform for experimentation and upgrades, this kit provides a solid foundation. Engineered for ease of assembly and dependable flight performance, the Holybro S500 V2 DIY Drone Kit combines balanced thrust, stable handling, and efficient power delivery for smooth flight characteristics. Its thoughtfully selected components ensure compatibility and optimized performance, making the build process straightforward while offering room for future enhancements. From casual flying to aerial photography and DIY experimentation, this kit empowers you to bring your custom drone ideas to life with quality and precision. Features: Complete DIY drone kit including frame, motors, propellers, and ESCs for easy assembly. Durable S500 V2 frame designed for stable and reliable multirotor performance. Balanced propulsion system delivers smooth thrust and efficient flight. Supports customization and upgrades with compatible flight controllers and accessories. Suitable for beginners learning drone assembly as well as advanced UAV projects. Ideal for DIY builds, aerial experimentation, and educational drone applications.

7Semi ESP32-C6 Mini Wifi Development Board Qwiic (DC-10116) The 7Semi ESP32-C6 Mini Wifi Development Board Qwiic is a compact and powerful wireless development board built around the modern ESP32-C6 chipset. It brings together fast Wi-Fi connectivity and flexible input/output options in a small Qwiic-compatible form factor, making it easy to use in projects that need smart communication and control. This board supports Wi-Fi 6 and Bluetooth/BLE connectivity, along with plenty of programmable pins for sensors, modules, and other components. With its Qwiic connector, you can plug in compatible accessories without soldering, simplifying prototyping and expanding your project quickly. Whether you’re building IoT devices, smart sensors, or remote controls, this ESP32-C6 board delivers reliable performance and effortless integration. Features: Powered by the ESP32-C6 chipset for modern wireless applications Supports Wi-Fi 6 for faster and more reliable connectivity Built-in Bluetooth / BLE support for short-range communication Qwiic connector for quick, solder-free sensor and module connections Compact form factor ideal for IoT and embedded projects Multiple GPIO pins for connecting sensors, actuators, and displays Compatible with popular development environments and libraries Suitable for smart devices, automation, and prototyping Pinouts

SpeedyBee F7 V3 Flight Controller The SpeedyBee F7 V3 Flight Controller is a powerful and reliable Flight Controller built for FPV racing, freestyle, and long-range drone applications. Powered by a high-speed STM32F7 processor, it delivers fast signal processing and precise flight control for smooth, responsive performance. Its standard 30.5 × 30.5 mm mounting pattern ensures easy compatibility with most FPV drone frames, making it an ideal choice for both new builds and upgrades. Designed for convenience and flexibility, this Flight Controller supports wireless configuration via Bluetooth and Wi-Fi, allowing quick setup and tuning directly from a mobile device. It features integrated Betaflight OSD, onboard barometer, multiple UARTs, and wide peripheral support for GPS, telemetry, and video systems. With 6S LiPo compatibility and a well-optimized layout for clean wiring, the SpeedyBee F7 V3 Flight Controller offers a perfect balance of performance, expandability, and user-friendly design for FPV pilots at any skill level. Features: High-performance STM32F7 processor for fast, stable, and responsive flight control Built-in Bluetooth & Wi-Fi support for easy wireless configuration and tuning Integrated Betaflight OSD and onboard barometer for enhanced flight data and altitude sensing Supports up to 6S LiPo input, ideal for racing, freestyle, and long-range drones Multiple UART, I2C, and SPI ports for GPS, telemetry, and peripheral expansion Standard 30.5 × 30.5 mm mounting pattern for wide compatibility with FPV frames

Pludo STEM Air Glide Kit – DIY Science Kit for Kids 11–14 | Grade 6–8 Bernoulli’s Principle Air Levitation Experiment Bring the wonders of physics to life with the Pludo STEM Air Glide Kit, a hands-on science experiment kit designed to demonstrate Bernoulli’s Principle in action. As children assemble and experiment with the kit, they discover that fast-moving air creates low pressure. When the blower pushes air upward at high speed, the air pressure around the ball becomes lower than the pressure below it. This pressure difference lifts the ball and keeps it floating and balanced in the air. As long as the airflow remains steady, the ball stays levitated, clearly showing how air speed and pressure work together to produce lift. This engaging kit doubles as both a science toy and a STEM learning tool, helping young minds understand core concepts of motion, balance, and aerodynamics in a fun and interactive way. A great choice for parents and teachers seeking quality kids learning toys and STEM kits that inspire creativity and experimentation. What Your Child Will Learn: Discover how air pressure and velocity work together to create lift. Understand Bernoulli’s Principle through exciting real-world demonstrations. Learn about aerodynamics, balance, and fluid motion in a simple, interactive way. Strengthen observation, critical thinking, and problem-solving skills. Gain confidence through hands-on learning and self-exploration. Educational Outcomes: Conceptual Clarity: Builds a solid understanding of how air movement affects objects, connecting science to daily life. STEM Skill Development: Encourages experimentation, hypothesis testing, and logical reasoning. Real-World Application: Demonstrates how Bernoulli’s Principle applies to airplanes, drones, and sports physics. Creative Thinking: Inspires kids to design and test their own experiments based on air pressure and motion. Confidence in Learning: Promotes curiosity-driven discovery that helps children approach science with enthusiasm and confidence. Fun Fact: Bernoulli’s Principle is the same concept that keeps airplanes in the sky — your child will explore this fascinating science right at home! Features Hands-on DIY science experiment kit that demonstrates Bernoulli’s Principle through air pressure and lift experiments. Encourages curiosity, critical thinking, and problem-solving as children explore how airflow creates levitation. Made from durable, child-safe materials ensuring safe and long-lasting use during experiments. Suitable for children aged 11–14 (Grade 6–8) for an engaging and age-appropriate STEM learning experience. Promotes understanding of aerodynamics, balance, and fluid motion through fun, practical experiments. Perfect for classroom demonstrations, home learning sessions, or interactive STEM projects. Included manual provides step-by-step guidance for easy assembly and scientific exploration. Makes a thoughtful science gift for birthdays, science fairs, or young inventors interested in hands-on discovery.

Witty Fox Hot Melt Glue Gun 60w with EU Plug Witty Fox Hot Melt Glue Gun 60W with EU Plug is a powerful and versatile adhesive tool designed to handle a variety of bonding tasks with ease. With 60 watts of power, it heats up quickly and melts glue sticks efficiently, providing a strong and steady flow of hot glue. This makes it perfect for heavier DIY projects, crafting, home repairs, and even light woodworking tasks. This glue gun features a standard EU plug, so you can easily connect it directly to household power outlets without needing extra adapters. Its ergonomic design offers a comfortable grip and good control, making it easy to apply glue precisely where you need it. Whether you’re fixing broken items, creating decorative pieces, or working on larger craft projects, the Witty Fox 60W Hot Melt Glue Gun delivers reliable performance and strong adhesive results in a ready-to-use package. Features: 60W high-power heating for fast melt and strong glue flow Standard EU plug for direct connection to mains power Quick heat-up suitable for continuous and heavy-duty use Compatible with standard hot melt glue sticks Comfortable ergonomic handle for better control and precision Ideal for DIY crafts, home repairs, woodworking, and workshop tasks

RadioLink SE100 M10 GPS Module with High Positional Accuracy for Drones & UAVs The SE100 M10 GPS Module with High Positional Accuracy is a precision navigation sensor designed to provide reliable and accurate positioning data for drones, UAVs, robotics, and other GPS-enabled applications. Featuring advanced satellite signal processing and a compact form factor, this module ensures strong signal reception, fast satellite lock times, and stable performance even in challenging environments. Ideal for both hobbyists and professional developers, the SE100 M10 offers seamless integration with flight controllers and navigation systems, helping improve flight stability, waypoint tracking, and autonomous operation. Whether you’re building a custom drone, upgrading navigation accuracy, or enhancing your robotics project, this GPS module delivers dependable performance for enhanced control and situational awareness. Features: High positional accuracy GPS module for drones, UAVs, and robotics applications Powered by advanced M10 GNSS technology for improved satellite tracking Fast satellite acquisition with stable and reliable signal reception Compact and lightweight design for easy integration with flight controllers Supports precise navigation, waypoint tracking, and autonomous flight modes Suitable for hobby, research, and professional UAV projects

SmartElex DS3232 RTC (Real Time Clock) Breakout Module The SmartElex DS3232 RTC Breakout Module is a reliable DS3232 RTC module designed for accurate and long-term timekeeping in electronics and IoT projects. With an integrated crystal oscillator and temperature-compensated circuitry, it maintains precise date and time even under changing environmental conditions. This real-time clock module supports I²C communication, making it simple to interface with popular microcontrollers for applications such as data logging, digital clocks, alarms, and automation systems. A coin cell battery backup keeps the clock running during power loss, while its low power consumption and stable performance make it ideal for projects that demand exact timing and consistent operation over years. Features: Integrated crystal for accurate timekeeping. Temperature correction to reduce drift. Compact design that works well with breadboards. Works with I²C interface for microcontroller integration. Includes a coin cell battery backup for uninterrupted operation. Fully constructed and tested module ready for speedy deployment. Compatible with Arduino, Raspberry Pi, and other platforms. Low power usage results in longer battery life.

7Semi SHT40 SGP40 VOC Environmental Monitoring Sensor Module Qwiic-Ready The 7Semi SHT40 + SGP40 VOC Environmental Monitoring Sensor Module is designed to help you measure temperature, humidity, and air quality with high accuracy and minimal effort. Built with advanced SHT40 and SGP40 sensing technology, this compact module delivers precise data for temperature (–40°C to 125°C), humidity (0–100% RH), and VOC levels with excellent response time and reliability. Whether you're prototyping with Arduino, Raspberry Pi, or any I2C-based microcontroller, the Qwiic-compatible interface makes integration incredibly simple and clean. This breakout board is ideal for home automation, indoor air-quality projects, workplace monitoring, or industrial systems where accurate VOC readings matter. Its low power consumption and digital 16-bit output make it highly suitable for long-term IoT deployments, high-precision environmental sensing projects, and portable air-quality monitors. Features: Designed as a compact breakout board integrating the SHT40 high-precision temperature and humidity sensor and the SGP40 VOC sensor for reliable environmental monitoring. Offers fast and accurate measurements, including ±0.2°C temperature accuracy and ±1.8% RH humidity accuracy, ensuring dependable readings in various environments. Qwiic-compatible interface enables effortless plug-and-play connectivity with I2C-enabled microcontrollers and SBCs without soldering. Produces 16-bit digital raw and processed VOC Index signals for easy integration into data-logging, automation, or IoT systems. Ensures low power consumption, making it suitable for battery-powered and continuous-monitoring applications. Built to detect a wide range of volatile organic compounds such as ethanol, acetone, and formaldehyde with high sensitivity and quick response times. Board Dimensions: Arduino I2C Connection Diagram:

SmartElex BS312 PIR Motion Sensor The SmartElex BS312 PIR Motion Sensor is a compact passive infrared sensor designed to detect human motion by sensing changes in infrared radiation. It helps systems respond only when movement is present, reducing unnecessary power usage and improving efficiency. This sensor is suitable for students, makers, engineers, educators, and startups who are building electronics projects that require reliable motion detection in a small, low-power form factor. This PIR motion sensor is ideal for robotics, IoT devices, security systems, and automation projects, especially those that run on batteries or need low standby power consumption. It can be easily interfaced with popular platforms such as Arduino, Raspberry Pi, and ESP32, making integration quick and straightforward. Common use cases include motion-activated lighting, smart alarms, occupancy detection, and compact IoT monitoring solutions where dependable performance and simple integration are essential. Features: Compact PIR sensor for accurate human motion detection Detects movement using passive infrared technology Low power consumption ideal for battery-powered projects Digital output for easy interfacing with microcontrollers Fast response time for real-time motion detection Compatible with Arduino, Raspberry Pi, ESP32, and similar boards

7Semi 5A Analog INA169 DC Current Sensor Breakout The 7Semi 5A Analog INA169 DC Current Sensor Breakout is a precision Analog DC current sensor designed for accurate current monitoring in electronic circuits. Powered by the trusted INA169 chip, it delivers consistent current readings up to 5A across a wide input range of 2.7V to 60V. Its low offset voltage and minimal quiescent current ensure reliable measurements, while adjustable gain and overcurrent protection add versatility for various applications. Compact and easy to integrate with microcontroller-based systems, this INA169 current sensor is perfect for IoT projects, battery management, power monitoring, and smart energy solutions, providing dependable performance for both hobbyists and professional engineers. Features: Wide Voltage Range Compatibility: Operates efficiently between 2.7V and 60V, making it suitable for both low and high-voltage applications. High-Side Current measuring: Enables unipolar high-side current measuring for safer and more accurate readings. Customizable Gain Control: Easily alter output sensitivity with a single resistor to meet your individual application requirements. Built-in Signal Amplifier: Provides clean and amplified output signals for accurate ADC conversion. Overcurrent detection protects connected components by detecting and responding to excessive current. Low Quiescent Current: Consumes only 60 µA, making it ideal for energy-sensitive projects. Microcontroller-Friendly: Fully compatible with Arduino, ESP32, STM32, Raspberry Pi, and other development boards. Compact Design: Small form factor excellent for embedded system integration and space constraints. Connection Diagram with Arduino:

7Semi SHT41 Temperature & Humidity Sensor Breakout with I2C Qwiic Interface The 7Semi SHT41 Temperature & Humidity Sensor Breakout is a high-precision humidity sensor module built for engineers, developers, and IoT creators who need reliable environmental data in compact embedded systems. Powered by Sensirion’s advanced CMOSens® technology, this I2C temperature sensor delivers accurate readings across a wide range, making it ideal for smart home automation, HVAC upgrades, weather stations, and industrial monitoring systems. With its accurate ±1.5% RH humidity and ±0.2°C temperature performance, it ensures consistent measurements even in demanding environments. Designed with a built-in Qwiic connector, the breakout allows fast, solder-free plug-and-play integration into Qwiic-compatible ecosystems like Arduino, Raspberry Pi, and other development platforms. Its quick response time, low power consumption, and compact 30 × 22 mm footprint make it a dependable environmental monitoring sensor for portable, battery-powered devices, IoT prototypes, and educational projects. Whether used in climate control systems or air-quality tracking, the SHT41 provides robust, long-term stability. Features: Designed with Sensirion’s CMOSens® technology to deliver high-accuracy temperature and humidity readings with long-term stability. Offers a full 0–100% RH humidity range and a wide temperature range of -40°C to 125°C, making it suitable for varied climates and applications. Integrated Qwiic connector provides seamless, solder-free connectivity for rapid prototyping and easy hardware integration. Supports I2C communication, allowing compatibility with Arduino, Raspberry Pi, ESP32, and other development platforms. Features a compact and lightweight 30 × 22 mm PCB, ideal for embedded and space-constrained designs. Operates on 3.3V–5V supply with low operating current, making it suitable for battery-powered and energy-efficient systems.