ST 32位控制原理图及PCB封装图库，希望可以帮到从事电子线路开发的同事。-ST 32 digital control schematics and PCB footprint library, the desire to help my colleagues engaged in the development of electronic circuits.

ORCAD SIM900 library schematic and foot print for allegro. Use full to add into the libraries of Orcad 16.5 and higher and design schematics as well as PCB footprint