Beetle Leonardo ATmega32U4 Ultra-Compact USB Dev Board

Beetle Leonardo ATMEGA32U4 Ultra-Compact USB Development Board

Meet the Beetle Leonardo ATMEGA32U4 — one of the smallest Arduino-compatible development boards available, packing serious capability into a featherweight 3g form factor. Whether you're prototyping wearables, building custom HID devices, or embedding a microcontroller into a space-constrained project, the Beetle delivers full ATmega32U4 power with native USB support right out of the box.

Why Choose the Beetle Leonardo?

• Ultra-Compact Design: Extremely small footprint makes it ideal for embedded projects, wearables, and space-limited builds where every millimeter counts.
• Native USB Support: The ATmega32U4 handles USB communication directly — no extra chip needed. Program it as a keyboard, mouse, or custom HID device with ease.
• Arduino Leonardo Compatible: Works seamlessly with the Arduino IDE and Leonardo libraries, so you can hit the ground running with minimal setup.
• Micro USB Interface: Standard Micro USB port for power and programming — no special cables required.
• Versatile I/O: 10 digital I/O ports, 5 analog input ports, 4 PWM outputs, plus I²C and UART interfaces for flexible project connectivity.
• Adequate Memory: 32KB Flash (4KB reserved for bootloader), 2.5KB SRAM, and 1KB EEPROM for your sketches and data.
• Reliable 16MHz Clock: Runs at 16MHz on 5V DC — stable and consistent performance for time-sensitive applications.

Technical Specifications

Package Options

• 1pc White
• 1pc Black
• 5pcs White
• 5pcs Black
• 10pcs White
• 10pcs Black

Perfect For

• DIY wearable electronics and e-textile projects
• Custom USB HID devices (keyboards, gamepads, mice)
• Robotics and automation prototyping
• Compact sensor nodes and data loggers
• Maker projects where board size is critical

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Frequently Asked Questions

Q: Is the Beetle Leonardo ATMEGA32U4 compatible with the Arduino IDE?

A: Yes! The Beetle Leonardo is fully compatible with the Arduino IDE. Simply select "Arduino Leonardo" as your board in the IDE settings and you can upload sketches directly via the Micro USB connection. It supports all standard Leonardo libraries and code.

Q: What makes the Beetle Leonardo different from a standard Arduino Leonardo?

A: The key difference is size. The Beetle Leonardo uses the same ATmega32U4 microcontroller as the full-sized Arduino Leonardo but in a drastically smaller form factor — making it perfect for wearables, embedded electronics, or any project where board real estate is limited. It trades some pin count for ultra-compact dimensions while retaining native USB support.

Q: Can I program the Beetle Leonardo as a USB keyboard or mouse?

A: Absolutely. Because the ATmega32U4 handles USB natively, the Beetle Leonardo can enumerate as a HID device — keyboard, mouse, gamepad, or custom USB device — directly from your Arduino sketch using standard Keyboard and Mouse libraries.

Q: What voltage does the Beetle Leonardo operate at?

A: The Beetle Leonardo operates at 5V DC, powered conveniently through its Micro USB interface. It runs at a stable 16MHz clock frequency for consistent performance across your projects.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.