【摘要】 LED光柱作为模拟显示器件 ,具有抗震、抗磁及能见度好等一系列优点 ,目前在仪表中得到广泛应用。给出了用PS72 19芯片配合单片机 ,可直接驱动 5 0线LED光柱的实例。分析了LED光柱的结构和PS72 19的功能和使用方法。提供了完整的电路连接方法和详细的软件清单。更多还原

【Abstract】 As an analog display device LED bar display features advantages of vibration-proof,?anti-magnetic and well visible,?etc.?It has been widely used in instruments.?The practical example of directly driving 50 sector LED bar display by using PS7219 chip and single chip computer is given.?The structure of LED bar display and the functions and application of PS7219 are analyzed. The complete circuit connections and software listing are provided.更多还原