The Arduino Leonardo is a powerful and flexible development board built around the ATmega32U4 microcontroller. Unlike many other Arduino boards, the Leonardo features native USB communication, allowing it to appear to a connected computer as a keyboard, mouse, joystick, MIDI device, or other USB peripheral without requiring additional hardware.
The board provides 20 digital input/output pins, of which 7 can be used as PWM outputs and 12 as analog inputs. It operates at 5V and runs at a clock speed of 16MHz, making it suitable for a wide variety of embedded and interactive projects.