Arduino Pro Micro 5V/16MHz Compatible Board — ATmega32U4, Native USB

Arduino Pro Micro 5V/16MHz Compatible Board — ATmega32U4, Native USB

The Arduino Pro Micro 5V/16MHz combines the compact size of the Pro Mini with the native USB capability of the ATmega32U4 — allowing it to act as a USB HID device (keyboard, mouse, joystick, or MIDI controller) without any additional hardware. The most popular board for custom macro keyboards, game controllers, and USB automation projects in a tiny form factor.

Key Specifications

• MCU: ATmega32U4 | Clock: 16MHz | Voltage: 5V
• Flash: 32KB | SRAM: 2.5KB | EEPROM: 1KB
• Digital I/O: 18 pins | PWM: 7 channels | Analog in: 9 channels
• USB: Native USB (Micro USB) — HID keyboard / mouse / joystick / MIDI
• Interfaces: UART / SPI / I2C
• IDE: Arduino IDE compatible | Compliance: RoHS compliant

Why Choose This?

• ✅ Native USB HID — emulate keyboard, mouse, joystick or MIDI in a tiny package
• ✅ Compact form factor — smaller than Leonardo, ideal for wearables and hidden installations
• ✅ Micro USB — standard connector for programming and power
• ✅ Arduino IDE compatible — use familiar Arduino HID libraries

Typical Applications

• Custom macro keyboards and shortcut pads
• USB game controllers and joysticks
• USB MIDI controllers for music production
• Compact USB HID automation devices

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