单片机通过串口给仿真中的上位机发送字符，根据字符摆放外置的不同，拼装成汉字或图片。距离可以进一步理解液晶显示原理。- 57/5000 Single-chip through the serial port to the simulation of the host computer to send characters, according to the external character placed in different, assembled into Chinese char