Arduino Leonardo Board

The Arduino Leonardo is a microcontroller board based on the ATmega32U4 microcontroller. It’s part of the Arduino family and is known for its native USB capabilities, allowing it to emulate a computer keyboard or mouse. Here’s a brief description of the Arduino Leonardo board:

• • 1. Microcontroller: ATmega32U4
    2. Operating Voltage: 5V
    3. Input Voltage: 7-12V (via the Vin pin or USB)
    4. Digital I/O Pins: 20
    5. PWM (Pulse Width Modulation) Pins: 7
    6. Analog Input Pins: 12
    7. DC Current per I/O Pin: 40 mA
    8. DC Current for 3.3V Pin: 50 mA
    9. Flash Memory: 32 KB (of which 4 KB used by the bootloader)
    10. SRAM: 2.5 KB
    11. EEPROM: 1 KB
    12. Clock Speed: 16 MHz
    13. USB Interface: Yes, ATmega32U4 has a built-in USB communication module
    14. Built-in USB Communication: The native USB allows the Leonardo to emulate a keyboard or mouse, making it ideal for projects where human-interface devices are needed.
    15. Reset Button: A reset button is available for restarting the sketch.

One distinctive feature of the Leonardo is its ability to act as a USB human interface device (HID), allowing it to emulate a computer keyboard or mouse. This makes it suitable for projects where you want the Arduino to interact with a computer by sending keystrokes or mouse movements.