这是一利用at892051+74hc595芯片的护栏管源程序,仅共参考,希望对大家有用,This is one use of at892051+74 hc595 chip tube source, only a total of reference, in the hope that useful to everybody

74LS595资料，八位串行输入，并行输出数据缓存器-74LS595 data, eight serial input, parallel output data buffer

LCD固定字体显示，74HC138译码器译码，74HC595移位送数据，显示字体-LCD fixed font display the 74HC138 decoder decodes 74HC595 shift to send data, display font