使用C语言实现的用串行方式驱动led显示、EEPROM存贮器操作、按键扫描、红外接收等-use of the C language Serial Port Driver led, EEPROM memory operation, scan buttons, infrared receiver, etc.

通过I/O模拟同步串口与74HC595进行连接，控制74HC595驱动LED显示。-Through the I/O analog synchronous serial port to connect with 74HC595, 74HC595 drive LED control display.

7219级联显示16个数码管的驱动程序，与单片机通过串口通信。简单实用。-7219 Cascade 16 LED display drivers, and the microcontroller through the serial port communication. Simple and practical.