基于M16的字符液晶1602的驱动，带有直接处理正负浮点数和正负整数并且将数值显示的函数。硬件使用6根线，方便调试，更方便移植，有测试程序。-M16 based on the character LCD 1602 driver, deal directly with the positive and negative with the positive and negative integer and floating-point numbers and will be a function o

595驱动液晶1602，很实用，可以移植到任何CPU且使用3根io就可以-3-Wire Serial LCD using a Shift Register