As this will become my online reference regarding this board, lets store some more technical details regarding the header connectors.

Arduino style connectors

Well, because of the Arduino standard connector, the microcontroller pinout wirings are a mess but I’m not the one to complain, as I did the same to a couple of microcontrollers for the sake of this standard.

Morpho style connectors

At least, this one exposes all the pins of the microcontroller, offering an alternative regarding the connections – male connectors.