I want a simple&cheap board which has its pins in order. It should be small and powerful. Saddly I can't find such board in market. So why not build it by myself?
As you see, my board has many characteristic as listed:
USB Type-C(power&OTG)……X1
2A Fuse……X1
Power LED……X1
User LED……X1
User Button……X2
SWD……X1