A circuit to measure Frequency upto 655 KHz with a resolution of ~10 Hz. Uses 8051 controller with 16x2 LCD display as an O/P device. See http://sites.google.com/site/munish4u911ex/Home/8051projects-simulations/8051-freqcounter for hardware connectio

基于DDS的波形发生器！以下为其头文件代码！ #include <AT89X51.H> #include"lcd.h" uchar code table1[]={"FREQ:"} uchar code table2[]={"WAVE "} uchar code table3[]={"Hz"} uchar code table4[]={"fang bo"} uchar code table5[]={"zhengxianbo"} uchar co

通过STM32控制AD9833芯片，实现利用按键切换正弦波、方波、三角波三种波形并控制频率10hz或20hz步进，全部有LCD显示。并可用蓝牙串口设置任意波形和频率-By STM32 AD9833 chip control, using the key switch sine wave, square wave, triangle wave frequencies, which are three kinds of waveform control 10 hz or 20 hz step, al

本数字频率计将采用定时、计数的方法测量频率，采用一个1602A LCD显示器动态显示6位数。测量范围从1Hz—10kHz的正弦波、方波、三角波，时基宽度为1us,10us,100us,1ms。用单片机实现自动测量功能。-The digital frequency meter will adopt the method of timing, counting measuring frequency, USES a model 1602 a dynamic LCD display 6 digits.