本设计采用一片AT89C51和一片DAC0832数模转换器做成的低频信号波形发生器，它的特点是价格低、性能高，在低频范围内稳定性好、操作方便、体积小、耗电少等。-This design uses an AT89C51 and the DAC0832 digital to analog converter made of a low-frequency waveform generator, which is characterized by low prices, high performance, good stability in the low frequency range, easy operation, small size, low power consumption and so on.