S3C2440的PWM输出驱动,可以输出频率可调的PWM方波以控制步进电机-The S3C2440 PWM output drive, the PWM square wave can be output frequency is adjustable to control the stepper motor

波形发生器可输出正弦波，锯齿波，方波，三角波等-Waveform generator can output sine, sawtooth, square, triangle wave, etc.

基于51单片机的LCD1602显示正弦波，方波，三角形的示波器，功能齐全。-Display sine, square, triangle oscilloscope, fully functional 51-based MCU LCD1602.