MCU程序 .......\constant.H .......\Port.H .......\STC12C5410AD.H .......\USSensor.c .......\US_Sen.hex .......\Var.H 硬件资料 ........\PCB丝印面(含元件面).pdf ........\PCB丝印面.pdf ........\PCB元件面.pdf ........\PCB焊接面.pdf ........\材料清单.pdf ........\电原理图.pdf