资 源 简 介
//串行驱动led显示，
//一个74hc595位移寄存器驱动三极管驱动led位，
//两个74hc595驱动led段，方式位5位x8段x2=10个数码管
//5分频，每次扫描时间位1.25ms-//Serial Driver led,// a 74 hc595 displacement Driver Register triode-led drive,// 2 74 hc595 led drive, 5-way x8 of x2 = 10 digital control// 5 frequency, each scan time-1.25ms
