R24AVD2
R24AVD2 Human Presence Sensing Radar
24GHz mmWave radar module for human presence detection. Stationary + moving detection, UART interface.
Frequency24GHz mmWave
InterfaceUART
DetectionStationary + Moving
Module Drive · Electronics Hardware Catalog
Electronic Modules, Sensors, IC Chips and Components for Hardware Innovation
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Electronic Modules
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Browse CategorySensors
Gas, temperature, pressure, optical and proximity sensors for industrial and IoT applications.
Browse CategoryIC Chips
Microcontrollers, processors, memory, logic chips, power management ICs and interface chips.
Browse CategoryConnectors
USB connectors, pin headers, terminal blocks, power connectors and RF antenna solutions.
Browse CategoryPower Supplies
Relays, transformers, switching power supplies, adapters and rectifier bridges.
Browse CategoryCooling & Thermal
Heat sinks, cooling fans, thermal pads and thermal management accessories.
Browse CategoryFeatured Products
Popular electronic modules, development boards and sensor modules for prototyping and production.
STC89C52RC Heart LED Kit
DIY Heart-Shaped Colorful Flashing LED 51 MCU Kit
Heart-shaped LED flowing light DIY kit with STC89C52RC 51 MCU. Soldering practice, MCU learning, STEM education.
MCUSTC89C52RC
Type51 MCU Kit
StyleHeart LED Board
MD-ESP32S3-DEV
ESP32-S3 Development Board
Dual-core WiFi + BLE 5.0 development board with 16MB Flash, 8MB PSRAM, USB-C
MCUESP32-S3
Flash16MB
WirelessWiFi + BLE 5.0
MD-MPU6050-GY521
MPU6050 6-Axis Gyro Accelerometer Module
3-axis gyroscope + 3-axis accelerometer sensor module, I2C interface, 3.3-5V
ChipMPU6050
InterfaceI2C
Voltage3.3-5V
MD-XL4016-5A
XL4016 Buck Converter Step-Down Module
DC-DC step-down power module, 4-40V input, 1.25-36V adjustable output, 5A max current
Input4-40V DC
Output1.25-36V
Current5A Max
MD-STM32F407-CORE
STM32F407VET6 Core Development Board
ARM Cortex-M4 core board with 512KB Flash, 192KB SRAM, FSMC, multiple I/O
MCUSTM32F407VET6
CoreCortex-M4
Flash512KB
MD-HCSR04
HC-SR04 Ultrasonic Distance Sensor
Ultrasonic ranging module, 2cm-400cm detection range, 5V operation, standard 4-pin header
Range2cm - 400cm
Accuracy3mm
Voltage5V DC
MD-CP2102
CP2102 USB-to-UART Bridge Module
USB 2.0 to TTL UART serial converter, 3.3V/5V output, baud rate up to 1Mbps
ChipCP2102
Baud RateUp to 1Mbps
Output3.3V / 5V
Engineering Applications
Application-focused solutions for embedded systems, IoT, smart buildings, STEM education and more.
Human Presence Detection
mmWave radar sensor solutions for human presence, counting and tracking in smart buildings and automotive applications.
Learn moreEmbedded Module Integration
Guidance on selecting and integrating electronic modules into embedded systems and IoT products.
Learn moreSmart Home Electronics
Sensor modules, wireless connectivity and power solutions for smart home and building automation.
Learn moreSTEM Education Kits
Electronic training kits, MCU DIY kits and educational modules for STEM programs and university labs.
Learn morePower & Signal Connectivity
Comprehensive connectivity solutions including cables, connectors, terminal blocks and signal management.
Learn moreThermal Management
Heat sinks, cooling fans, thermal interface materials and thermal design solutions for electronic systems.
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Electronic components sourced and supplied to engineers, makers, educators and distributors worldwide.
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Engineering Resources
Technical articles, tutorials and guides for electronic component selection and integration.
Power Management2026-05-15
Selecting the Right Buck Converter for Your Embedded Design
A practical guide to choosing step-down converters based on input voltage range, output current requirements and efficiency.
Read articleDevelopment2026-05-02
Getting Started with ESP32-C3 RISC-V Development
Learn how to set up your development environment and write your first firmware for the ESP32-C3 RISC-V MCU.
Read articleTutorial2026-04-18
Understanding Sensor Communication Protocols: I2C vs SPI vs UART
A comparison of the three most common serial communication interfaces used in sensor modules and when to use each.
Read articleReady to Source Electronic Components?
Get product recommendations, request samples and receive competitive quotes from our engineering team.