1. Draw and explain the Arduino pin configuration Arduino Uno is a popular microcontroller development board based on 8-bit ATmega328P microcontroller. Along with ATmega328P MCU IC, it consists other components such as crystal oscillator, serial communication, voltage regulator, etc. to support the microcontroller. Vin : This is the input voltage pin of the Arduino board used to provide input supply from an external power source. 5V : This pin of the Arduino board is used as a regulated power supply voltage and it is used to give supply to the board as well as onboard components. 3.3V : This pin of the board is used to provide a supply of 3.3V which is generated from a voltage regulator on the board GND : This pin of the board is used to ground the Arduino board. Reset : This pin of the board is used to reset the microcontroller. It is used to Resets the microcontrol