we want to create a small STM32F4 based Board (for example 10x5cm in size), with limited Pins/sockets... this topic has not the the claim to be perfect... all the infos are on the WikiPage WikiPage: http://wiki.midibox.org/doku.php?id=mnmlcore#design_concepts we can edit - one piece of information - and have to possibility to to compare different designs more ease PCB: initial shematic/Board Layout (eagle): MinimalCore.zip taken from: (be aware that this files could be not ready