Added Component: Designator=P5(4P)
Added Pin To Net: NetName=GND Pin=P5-1
Added Pin To Net: NetName=TRIG Pin=P5-3
Added Pin To Net: NetName=VCC Pin=P5-4
Added Pin To Net: NetName=ECHO2 Pin=P5-2
Added Pin To Net: NetName=ECHO2 Pin=U1-15
Added Net: Name=ECHO2
Added Member To Class: ClassName=51Ƭϵͳ Member=Component P5 Header 4
Added Room: Name=51Ƭϵͳ
