通过LPC932a1f单片机来操控液晶显示屏PCF8591，可以把一些想要显示的数据此类写入液晶显示屏，显示想要显示的信息，以此来达到输出数据的目的。-By LPC932a1f microcontroller to control LCD display PCF8591, you can put some kind of data you want to write to the LCD display, display the information you want to display,