2、节音量和复位。由于单片机的IO口不够用,本设计采用74HC154对其扩充,将四线扩充到十六线。该系统具有电路结构简单、易操作、成本低等优点,具有较强的实用价值。关键词:单片机;红外遥控;点阵;译码器;霓虹灯第47页共47页TheDesignoftheNeonLightscontrollerBasedonSCMAbstractThisdesignusestheAT89C52singlechipmicrocomputertocontroltheneonlights.The system is composed bytheinfraredremotecon