Overview
The Arduino Pro Micro ATmega32U4 is a compact microcontroller board with an integrated USB, making it ideal for USB-connected devices and small-scale projects. It’s based on the ATmega32U4 and offers onboard USB functionality, making it perfect for projects like custom keyboards, mouse emulators, or other HID (Human Interface Device) applications.
Features
- Microcontroller: ATmega32U4 with onboard USB support
- Compact Size: Small footprint for tight spaces
- Integrated USB: Acts as USB device (HID support)
- Operating Voltage: 5V or 3.3V versions available
- Onboard Reset Button: Convenient for development
- Direct USB Communication: No external USB interface chip needed
Specifications
- Microcontroller: ATmega32U4
- Clock Speed: 16 MHz (5V) or 8 MHz (3.3V)
- Digital I/O Pins: 12
- Analog Inputs: 4
- PWM Pins: 5
- Operating Voltage: 5V or 3.3V
- Flash Memory: 32 KB (of which 4 KB used by bootloader)
- SRAM: 2.5 KB
- EEPROM: 1 KB