This was a bit tight to route because it is a lot on very little space and a lot of isolation areas and hole through components. The main challenge is however that I ran out of pins on the MCU. The routing straegi is free lines on top, ground, 3.V, horisontal layer, ground, vertical layer – 6 layers in total. And on top of that I optimize schematics for PCB. Now follows a few days with checking and double-checking before I order PCB’s.
