28+ Arduino Nano Digital Pin Numbers Photos. Arduino nano comes with a crystal oscillator of frequency 16 mhz. I suspect the digital pin count includes the tx and rx and analog pins, which are also usable as digital pins (except for a6 and a7 which are analog only, so these pins support spi communication, which, although provided by the underlying hardware, is not currently included in the arduino language.

Arduino Register Control Timers And Interruptions
Arduino Register Control Timers And Interruptions from www.electronoobs.com
Arduino nano comes with a crystal oscillator of frequency 16 mhz. Arduino nano has 14 digital input / output pins and 8 analog pins. The nano is inbuilt with the atmega328p microcontroller as mentioned earlier, arduino nano has 14 digital i/o pins that can be used either as digital input or output.

The atmega328 provide uart ttl (5v) serial communication, which is available on digital pins 0 (rx) and 1 (tx).

Arduino nano has 14 digital input / output pins and 8 analog pins. There are totally 14 digital pins and 8 analog pins on your nano board. Arduino mega is more powerful than an arduino nano in terms of speed and number of i/o pins. The analogue pins are starts from pin number 1,2,5,6,7,8,9,10,11,12,13,14, and pin number 16.