I’ve updated this post (on 01/11/2017) because Arduino Nano Pinout I’ve taken from BQ.com was wrong. An user noticed and informed me about this error. Today I’ve corrected my post and also I keep the wrong one as an example because this image is in Google research if you see it pay attention because pin 11 and pin 12 is inverse MISO <-> MOSI.

The correct one Above:

Pin 11: MOSI 

Pin 12: MISO




Wrong one is below:

arduino nano wrong pinout
arduino nano *wrong* pinout 11-12 is inverse!