单片机`方波发生器,可调频, 0-1000HZ-Singlechip `square-wave generator, can be FM ,0-1000HZ

应用STC单片机的PCA功能测量经测速装置输出的PWM方波的脉冲宽度，从而计算出速度，并用串口将速度数据发到计算机。-SCM application PCA STC function measurement device by the speed of the PWM square wave output pulse width to calculate the speed and the speed with a serial port data to the computer.

基于STC12C5A60S2的单片机信号发生器，可发正弦波，方波，三角波，锯齿波，频率单独可调，方波占空比可调，最高频率800HZ左右，已调试通过。-Microcontroller signal generator based on STC12C5A60S2 hair sine wave, square wave, triangle wave, sawtooth wave, frequency individually adjustable square wave variable duty c

基于c语言的单片机编程，根据键盘输入发不同的方波序列-The code is base on VC.A square wave sender。