Arduino Nano Tutorial – Pinout & Schematics
Arduino Nano Pinout
The Arduino Nano, as the name suggests is a compact, complete and bread-board friendly microcontroller board. The Nano board weighs around 7 grams with dimensions of 4.5 cms to 1.8 cms (L to B). This article discusses about the technical specs most importantly the pinout and functions of each and every pin in the Arduino Nano board.
How different is Arduino Nano?
Arduino Nano has similar functionalities as Arduino Duemilanove but with a different package. The Nano is inbuilt with the ATmega328P microcontroller, same as the Arduino UNO. The main difference between them is that the UNO board is presented in PDIP (Plastic Dual-In-line Package) form with 30 pins and Nano is available in TQFP (plastic quad flat pack) with 32 pins. The extra 2 pins of Arduino Nano serve for the ADC functionalities, while UNO has 6 ADC ports but Nano has 8 ADC ports. The Nano board doesn’t have a DC power jack as other Arduino boards, but instead has a mini-USB port. This port is used for both programming and serial monitoring. The fascinating feature in Nano is that it will choose the strongest power source with its potential difference, and the power source selecting jumper is invalid.
Arduino Nano – Specification
Arduino Nano Pinout Description
Taking this pin-out diagram below as reference, we shall discuss all the functionalities of each and every pin.
We can infer from the image that Arduino Nano got 36 pins in total. We will see all the pins section wise as well as a detailed format at last.
Digital I/O , PWM - 14 Pins For Analog Functions - 9 Pins Power - 7 Pins SPI (Apart from Digital I/O Section) - 3 Pins Reset - 3 Pins ______________________________________________________ TOTAL - 36 Pins
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