基于330单片机PCA的PWM应用程序，很好用的，可以作为测试之用。-PCA based on 330 of the PWM MCU applications, good use, and can be used as a test.

使用C8051F330来控制ADC，ocmj液晶显示，以及键盘控制。可以测量多种电压量，并进行显示。-Using the C8051F330 to control the ADC, ocmj liquid crystal display, and keyboard control. Can measure the amount of a variety of voltages, and to display it.