多功能电子钟,带按键测试， 可以设置闹钟，用12864作液晶屏-Multi-function electric clock and set alarm,make 12864 bitmap screen keypad test,Button Scanning And Processing

利用单片机作为芯片，利用点阵按钮通过继电器控制LED灯-Using single chip microcomputer as a chip, using bitmap button by relay control LED lights

利用单片机作为芯片，利用点阵按钮通过继电器控制LED灯(电路图)-Using single chip microcomputer as a chip, using bitmap button by relay control LED lights