The Arduino Pro Micro is a miniaturized board based on the ATMega32u4 microcontroller, offering native USB functionality and full Arduino IDE compatibility. This variant features a USB Type-C connector for modern connectivity and robust power delivery.

Specifications

• Microcontroller: ATMega32u4
• Clock Speed: 16 MHz
• Operating Voltage: 5 V
• Input Voltage (recommended): 5 V via USB Type-C
• Flash Memory: 32 KB (4 KB used by bootloader)
• SRAM: 2.5 KB
• EEPROM: 1 KB
• Digital I/O Pins: 12
• PWM Pins: 5
• Analog Input Pins: 4
• Communication: UART, I²C, SPI
• USB Interface: Native USB (CDC/HID) via Type-C connector
• Dimensions: ~34 mm × 18 mm
• Weight: ~5 g
• Bootloader: Caterina (Arduino-compatible)
• Compatible IDE: Arduino IDE, PlatformIO
• Mounting: Breadboard-friendly pin headers (optional)

Features

• Compact form factor for embedded and wearable projects
• Native USB support for HID devices (keyboard, mouse, joystick)
• USB Type-C connector for modern power and data interface
• Fully compatible with Arduino IDE and libraries
• Ideal for DIY controllers, automation, and USB peripherals
• Common use cases:
  - Custom USB keyboards and HID devices
  - Robotics and sensor interfacing
  - Wearable electronics and compact controllers
  - Serial-to-USB bridges and automation nodes