Arduino Pro Micro

The Arduino Pro Micro is a compact and versatile microcontroller board based on the ATmega32U4 microchip. It is part of the Arduino family and designed for projects where space is limited. The Pro Micro board features built-in USB capabilities, allowing it to emulate a keyboard, mouse, or other USB devices, making it suitable for a wide range of applications including custom input devices and embedded systems.

Key Features:

• Microcontroller: ATmega32U4
• Operating Voltage: 5V
• Input Voltage (recommended): 7-12V
• Digital I/O Pins: 18
• Analog Input Pins: 9
• Flash Memory: 32 KB (ATmega32U4), of which 4 KB used by bootloader
• SRAM: 2.5 KB
• EEPROM: 1 KB
• Clock Speed: 16 MHz
• USB: Built-in USB functionality for direct connection to computers and emulation of USB devices

Technical Specifications:

• Dimensions: 33 mm x 18 mm
• Weight: Approximately 8 g
• Communication: UART, SPI, I2C, USB
• On-board LEDs: TX, RX, Power, and one user-defined LED
• Power:
  • DC Current per I/O Pin: 40 mA
  • DC Current for 3.3V Pin: 50 mA
• Connectors:
  • USB Micro-B for programming and power
  • 6-pin header for serial communication
  • Pins for additional communication interfaces and power

Applications:

• Custom Input Devices: Can be used to create custom keyboards, mice, and other input devices.
• Embedded Systems: Suitable for small-scale embedded projects where USB connectivity is required.
• Prototyping: Ideal for rapid prototyping and development due to its compact size and USB capability.
• IoT Projects: Can be integrated into Internet of Things (IoT) devices for various control and monitoring applications.
• Wearables: Perfect for wearable electronics and projects requiring a small form factor.

Datasheet:
For detailed technical information, refer to the Arduino Pro Micro Datasheet.