
The Arduino Nano has a compact size and mini USB cable than the Arduino UNO. What is the main difference between Arduino UNO and Arduino Nano? Such dual functioning makes it unique to recommend and easy to use for beginners. The cable acts as a serial port and as the power supply to interface the board. The USB port in the Arduino board is used to connect the board to the computer using the USB cable. Why is Arduino recommended over other boards for beginners? It can also act as GPIO (General Purpose Input Output) pins. The function of Analog pins is to read the analog sensor used in the connection. Analog Pins- The pins numbered from A0 to A5 are analog pins.The ground pin acts as a pin with zero voltage. Voltage Regulator- The voltage regulator converts the input voltage to 5V.Crystal Oscillator- The Crystal oscillator has a frequency of 16MHz, which makes the Arduino UNO a powerful board.It is essential for the programming of the Arduino UNO board. USB- It allows the board to connect to the computer.Reset button- It is used to add a Reset button to the connection.AREF- The Analog Reference (AREF) pin is used to feed a reference voltage to the Arduino UNO board from the external power supply.TX and RX LED's- The successful flow of data is represented by the lighting of these LED's.


The pins numbered from D0 to D13 are digital pins.

It is considered as the powerful board used in various projects. It was also the first USB board released by Arduino. It was named as UNO to label the first release of Arduino Software. The Arduino UNO is a standard board of Arduino.
