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基于51单片机的信号发生器 四种波形显示 有级调频(Based on 51 single-chip signal generator)

AT89C51SND1C方案mp3资料包括源程序与原理图(AT89C51SND1C program information, including source code and mp3 schematic)

基于51单片机的信号发生器 四种波形显示 有级调频(Based on 51 single-chip signal generator)

说明：  答题器源码，用51单片机控制的。具体内容自己下载看吧(Answer source browser, with 51 single-chip control. Download and see the specific content of their own)

通过DS18B20读取温度（范围-55C~125C，精确到小数点后一位），通过4位数码管显示出来。 当温度为正且百位为零时，不显示，当温度为负时百位显负号。当温度百位和十位都为0时0都不显示。(Read through the DS18B20 temperature (range-55C ~ 125C, accurate to one decimal), through four digital tube display. When the temperature is zero and 100, do not show, when the temperature is significantly negative at minus 100. When the temperature is 100 and 10 are not displayed 0:00.)

单片机AD功能实例，使用1602显示电压(SCM AD function example, the use of 1602 shows the voltage)

AT89S52键盘程序,这是一个变频器的键盘驱动程序，简单，可靠，芯片为51单片机(one simple progrem for 51,if you like ,you can use it freely.)

stepper motor example with proteus

最小的单片机PWM控制，电压控制PWM输出，智能化，体积小。(ADC control PWM output)