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  • 32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board
  • 32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board
  • 32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board
  • 32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board
32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board

32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board

$0.10-$1.00/ Piece|2 Piece/Pieces(Min. Order)
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32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • USB Device Emulation: Enables emulation of Human Interface Devices (HID) such as keyboards, mice, and joysticks, ideal for custom automation and IoT projects.
  • Development Board: Based on the ATMEGA32U4 microcontroller, it supports USB communication and standard development for embedded systems, offering flexibility for prototyping and hardware-software integration.

Key features

  • 1. Corrosion-Resistant Metal Body

    • With a corrosion-resistant metal body, ensure durability in harsh environments compared to plastic-based models*. The sleek, professional design withstands daily wear and tear, making it ideal for rugged use.

  • 2. Keychain Attachment Design

    • With the keychain attachment design, enable effortless portability and accessibility, ideal for on-the-go developers*. The compact form factor ensures the device is always within reach, reducing the risk of loss.

  • 3. Universal USB Compatibility

    • With USB interface compatibility, ensure seamless connectivity across multiple devices and operating systems*. The standardized communication interface supports plug-and-play functionality for immediate use.

  • 4. Customizable Metal Body

    • With a customizable metal body, offer tailored branding or functional customization for specific project needs*. Engraving or printing capabilities make it adaptable for promotional, personal, or specialized development purposes.

  • 5. Standard-Compliant Safety Certifications

    • With standard-compliant safety certifications, ensure reliable and safe operation in various environments*. The design adheres to mainstream development and safety protocols for secure integration into projects.

Product details

32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board

The 32U4 Virtual Keyboard Badusb Leonardo USB ATMEGA32 Development Board is a compact, metal-cased USB development board designed for portability and versatility. Its keychain attachment ensures easy carry while its robust construction and programmable capabilities make it ideal for developers, hobbyists, and professionals needing a reliable tool for embedded projects.

Technical specifications

FeatureSpecificationBenefit
MaterialMetal (aluminum/stainless steel)Durable and resistant to wear and corrosion
Dimensions58mm × 16mm × 8mmUltra-compact for keychain integration
MicrocontrollerATMEGA32U4Supports Arduino Leonardo-compatible projects
InterfaceUSB 2.0Plug-and-play compatibility with PCs/macOS
CertificationsRoHS, CEMeets global safety and environmental standards
Key FeaturesHID emulation (keyboard/mouse)Enables creative projects like USB-based tools

Customization guide

Customize the metal casing with engraving or laser printing for branding, logos, or personal identifiers. The keychain attachment can be replaced with alternative designs (e.g., carabiner, lanyard loop) to suit specific use cases.

Get inspired

Turn this portable development board into a custom USB tool—program it to automate tasks, create interactive prototypes, or even build security keys. Its sleek metal design and keychain form factor make it perfect for developers who need a reliable, always-accessible device.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Storage Capacity32KB Flash (standard)+50% (48KB)+100% (64KB)*
Processing Speed16MHz20MHz24MHz (+50% faster)
DurabilityStandard metal casingCorrosion-resistant coatingMilitary-grade coating (+30% thicker)
CertificationsRoHS, CERoHS, CE, FCCRoHS, CE, FCC, IP67

Supplier's note

  1. Three Technical Breakthroughs:

    • Metal Casing: Enhances durability, reducing breakage risks in field deployments.
    • HID Emulation: Enables projects like programmable keyboards or automated input devices.
    • Customizable Keychain: Facilitates branding for corporate or promotional use.

  2. Optimal Version Selection:

    • Base Model: Ideal for hobbyists and prototyping with standard needs.
    • Advanced Model: Choose for projects requiring faster processing (e.g., real-time data logging).
    • Pro Model: Best for industrial or outdoor applications needing extreme durability and IP67 water/dust resistance.

With its HID capabilities, you can create tools that interact seamlessly with computers. The Pro version’s IP67 rating ensures reliability in harsh environments, while its 24MHz speed outperforms traditional 16MHz boards by 50%. Pair this with the customizable keychain to ensure your device stays organized and branded.

Frequently asked questions

  • Which development board is best for creating USB HID devices like virtual keyboards?

  • How does the ATMEGA32U4 microcontroller benefit USB-based projects?

  • Is the 32U4 Virtual Keyboard Badusb Leonardo compatible with Windows, macOS, and Linux?

  • Can this board be used for custom firmware development without external programming tools?

  • What makes the Leonardo’s USB interface more reliable than other boards?

  • How do I program the Badusb Leonardo for HID applications?

  • What customization options are available for the Badusb Leonardo?

  • Are there certifications ensuring the board’s USB compliance?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Arduino Uno (Industry Standard)Educational projects, basic automationATmega328P microcontroller (16 MHz), USB 2.0 (Full Speed, 12 Mbps), Limited to USB HID/CDCCost-effective, large community supportLimited USB capabilities, slower clock speed (16 MHz)
32U4 Base (Our Base)HID devices (keyboards/mice), IoT prototypesATmega32U4 (16 MHz), Full USB 2.0 (480 Mbps▲), Supports HID, CDC, etc.▲Full USB speed▲ for real-time data, versatile for HID▲, OS-agnosticFewer GPIO pins compared to Advanced, no built-in Wi-Fi
32U4 Advanced (Our Advanced)Complex HID devices, advanced IoTATmega32U4 (16 MHz), Full USB 2.0▲, Enhanced protocols (HID, CDC, MIDI▲), More GPIO▲Enhanced protocols▲ for multi-function devices, robust GPIO▲ for sensors▲Higher cost, requires more advanced coding skills
Raspberry Pi Zero (Alternative)Miniature computing, IoT gatewaysSingle-core ARM11 (1 GHz▲), Micro USB OTG, Linux distro support▲, Limited GPIOFull Linux OS▲ for complex scripts, powerful compute▲ (1 GHz▲ vs 16 MHz)▲No native HID support, bulkier than USB form factors
ESP32 Development BoardWi-Fi-enabled IoTDual-core ESP32 (240 MHz▲), Built-in Wi-Fi/BT▲, USB CDC support, Arduino IDE兼容Built-in Wi-Fi/BT▲ for wireless IoT, high processing power▲ (240 MHz▲)▲Steeper setup for HID projects, less GPIO flexibility than 32U4 Advanced
STM32 Nucleo BoardIndustrial control, prototypingSTM32 MCU (varies by model▲), Arduino/ST morpho headers, Multi-protocol supportIndustrial-grade components▲, customizable pinout▲, supports advanced timersProprietary ecosystem, requires STM32-specific tools, higher learning curve▲

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