2、加顺利。关键词:51单片机控制系统;红外无线遥控;发声原理;AltiumDesigneriiABSTRACTThisthesisisdescribeamusicplayerdesignbasedon89c51seriessinglechip,thedesignissetofsong’sinformationshows,lightsaccompaniment.Andintroducttheinfraredremotecontrolasthesong’scontrollerin a creative way,thatmakewhole