View Arduino Nano Pin Diagram
Photos. I found that pinout diagram for arduino nano contains an error, in right side: Arduino nano pinout contains 14 digital pins, 8 analog pins, 2 reset pins & 6 power pins.
It must be upside down (on top is d12 in right of the mini usb, than d11 and so on, and bottom is tx1). Notice that the classic 5v pin is not wired by default and unofficial arduino nano 33 iot pinout diagram. As mentioned earlier, arduino nano has 14 digital i/o pins that can be used either as digital input or output.
The board has 14 digital pins that can be used as input/output.
As mentioned earlier, arduino nano has 14 digital i/o pins that can be used either as digital input or output. Aref stands for analogue reference. The arduino nano is very much similar to the arduino uno. There are pins with secondary functions on the table below.