使用PIC单片机，实现LED显示，建立了各种通用子程序，就可以构造出各种显示程序，如字符、汉字、曲线等。执行这些程序前，必须对液晶进行初始化。初始化的顺序为：关显示→正常显示驱动设置→占空比设置→复位→ADC选择→清屏→开显示。-Using PIC microcontroller to achieve LED display, set up a variety of common subroutines, you can construct a variety of display program, such as characters, characters, curve. Before performing these procedures, you must initialize the LCD. Initialization sequence is: Off Display → Settings → normal display driver duty cycle reset → ADC select Settings → → → open clear screen display.