用C8051F020和12864液晶，7279键盘控制芯片做的简单示波器，100KHZ内正弦波都能明显观察到,有AUTO一键功能。-LCD with C8051F020 and 12864, 7279 keyboard controller chip to do a simple oscilloscope, 100KHZ within the sine wave can be clearly observed that a key function of AUTO.

基于AT89S51单片机的频率检测计设计 检测结果在LCD12864上显示-AT89S51 microcontroller based on the frequency of the detector design of the test results shown in LCD12864