How to deal with GPIO ? Oled display++

Dear Community,

i want to add oled display to my BPI-M2-Berry, what do i need ?!

thnx in advance

please see wiki :

I cant compareā€¦ There is no way how to connect oled to the gpio pins . a led-blink gpio tutorial for banana pi m2 berry would be a first step, a step, i cant see. So, could some please help by finding the right infos?