Product Description
The Pro Micro 5V 16MHz is a compact, feature-packed microcontroller development board built around the ATmega32U4 — the same chip used in the Arduino Leonardo. Its small footprint and native USB support make it a favourite among makers building custom keyboards, HID devices, and space-constrained embedded projects.
Key Features:
- Microcontroller: ATmega32U4
- Operating Voltage: 5V
- Clock Speed: 16MHz
- Digital I/O Pins: 12
- PWM Pins: 5
- ADC Channels: 4 (10-bit)
- Hardware Serial: Yes (RX/TX)
- Native USB: Yes — acts as USB HID device (keyboard, mouse, gamepad)
- Input Voltage: Up to 12V DC via RAW pin
- Onboard Protection: PTC fuse + diode protection on power circuit
- RX/TX LED indicators with corrected circuits
- Form Factor: Mini / compact
Typical Applications:
- Custom mechanical keyboard controllers
- USB HID devices (keyboard, mouse, gamepad emulation)
- Arduino-compatible projects in tight enclosures
- Wearable electronics
- Robotics and automation nodes
- Serial communication projects
- DIY MIDI controllers









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