Arduino Pro Micro 5V 16MHz ATmega32U4 USB HID Development Board

The Compact USB HID Powerhouse for Advanced Arduino Projects

The Arduino Pro Micro 5V 16MHz is a small but powerful development board built around the ATmega32U4 microcontroller — the same chip used in the Arduino Leonardo. Its built-in USB controller allows it to act as a native USB device: keyboard, mouse, joystick, MIDI controller, or any HID (Human Interface Device) — making it the popular choice for USB automation, HID scripting, and compact embedded projects.

Key Specifications

• Microcontroller: ATmega32U4
• Operating Voltage: 5V
• Clock Speed: 16 MHz
• Flash Memory: 32 KB (4 KB used by bootloader)
• SRAM: 2.5 KB | EEPROM: 1 KB
• Digital I/O Pins: 12 (of which 5 provide PWM)
• Analog Input Pins: 4
• Native USB: Yes — HID keyboard, mouse, joystick, MIDI, serial
• Connector: Micro USB
• Compact form factor — breadboard friendly

Common Applications

• USB HID keyboard / mouse emulation
• BadUSB / Rubber Ducky style HID scripting (penetration testing & security research)
• Custom USB game controllers and joysticks
• MIDI controllers and music instruments
• Macro keypads and shortcut pads
• Compact embedded automation projects

Package Includes

• 1 × Arduino Pro Micro 5V 16MHz ATmega32U4 Board

Note: This board uses the ATmega32U4's native USB — no CH340 or FTDI chip required. Select "Arduino Leonardo" as the board in Arduino IDE. A Micro USB cable is required for programming (not included).

Disclaimer: HID scripting capabilities are intended for legitimate security research, penetration testing, and educational purposes only. Always obtain proper authorization before use.