I had the idea to design a Arduino Nano compatible board with an microSD slot.
On one fateful Monday evening I talked to [[Benutzer:Tut|Tut]],[[Benutzer: Shintaro | Shintaro]] and [[Benutzer: LeandraChristine | LeandraChristine]] about this idea.
Soon after that we were discussing the problems of the Arduino PIN design, which is not a proper 0.1 inch grid.
With these small boards (Nano, Micro, Mini etc.) it is usual to put shields below the controller board.
At some point and lots of changes in the PIN design I realized that when I put my shields on top of the controller board I could easily achieve compatibility to all the other shields.
The [[HackFFM-Duino Nano]] has the Arduino Nano pinout on the bottom and the Skyline Shield pinout on top.