可产生4种波形：方波、正弦波、锯齿波、三角波。通过按键进行波形切换及频率调节。波形幅值通过电位器调节。采用51单片机+DAC0832+运放+独立按键设计，实现简易信号（波形）发生器功能。资料含C语言源程序、PROTEL格式原理图及PCB图、仿真文件及WORD说明文档，是制作易信号发生器比较好的参考。(Can produce 4 kinds of waveform: square wave, sine wave, sawtooth wave, triangle wave. Waveform switching and frequency regulation by buttons. The waveform amplitude is adjusted by potentiometer. Using 51 single chip +DAC0832+ op amp + independent button design, to achieve a simple signal (waveform) generator function. Data containing C language source code, PROTEL format schematics and PCB diagram, simulation files and WORD documentation, is the production of easy signal generator is a good reference.)