Digital Pins: There are 14 digital I/O pins that can be used for both input and output operations. These are labeled as "D0" to "D13"
Analog Pins: The board has 12 analog input pins labeled as "A0" to "A11". These pins can be used to read analog voltage levels.
Power Pins: There are pins for providing power to the board, including 5V (VCC), Ground (GND), and a separate power header
ICSP Header: This header provides access to the In-Circuit Serial Programming (ICSP) interface for programming the microcontroller with an external programmer.
UART Pins: The ATmega32U4 microcontroller supports serial communication through the TX and RX pins, labeled as "TX" and "RX"
Micro USB Connector: The built-in USB connector allows the board to be connected to a computer for programming and communication
Reset Button: The board has a reset button (labeled as "RESET") that can be used to restart the microcontroller.
Power Jack: The board can be powered using an external power source connected through the power jack.
Crystal Oscillator: The board features a crystal oscillator for accurate timing and clock generation.
LEDs: There are built-in LEDs that can be used for various purposes, including indicating power and statu