The Arduino Leonardo With Headers A000057 is a compact, Arduino-compatible microcontroller board built around the ATmega32U4. It offers native USB functionality and pre-soldered headers, making it ideal for interactive projects that act as USB devices and for easy prototyping.
Key Features & Design
- Microcontroller: ATmega32U4 with an integrated USB controller for native USB communication
- Memory & Clock: 32 KB flash, 2.5 KB RAM, 1 KB EEPROM; 16 MHz crystal
- I/O: 20 digital I/O pins (7 PWM), 12 analog inputs
- Connectivity: USB interface that connects directly to a computer; supports HID devices
- Header Layout: Includes headers pre-soldered for easy breadboarding and shield compatibility
- Power & Compatibility: Powered via USB or external supply; compatible with the Arduino IDE and standard libraries
- Indicator: Built-in LED for quick testing and status indication
Performance / Benefits
The Leonardo’s native USB capability allows the board to appear as a keyboard, mouse, or other HID device to a computer, simplifying USB communication without extra adapters. This makes it a strong choice for interactive projects, custom input devices, wearables, and experiments with USB protocols. The included headers streamline prototyping on a breadboard or in custom enclosures, while broad IDE compatibility ensures a straightforward development experience for beginners and seasoned developers alike.