STC89C58RD+ Macro

低电压检测. A口低8位接键盘列线，键盘行线接VDDIO；B口高8位接LED // 按K1键 低电压为2.4v // 按K2键 低电压2.8v // 按K3键 低电压3.2v // 按K4键 低电压为3.6v

单片机，与PC 串口通讯 程序-Microcontroller, and PC serial communication program

IC卡读写程序（ASM）及其测试顺序（PC端）

mega8，100Hz波形发生，定时中断点亮LED-mega8, 100Hz waveform occurred regularly interrupted lit LED

凌阳最出的超声波测距模组，通过555产生40KHz的超声波，有SPE061A单片机控制超声波的发射和接收，最初的版本在程序方面比第二版本来得简单，主要是通过了硬件电路减少了程序，附电路图、PCB图等-Sunplus most of the ultrasonic ranging modules, 40KHz generated through 555 of the ultrasound, ultrasound has SPE061A single-chip microcomputer to control the transmitting and receiving an initial version of the procedure than the second version is more simple, mainly through the reduction of hardware circuit procedures, with schematics, PCB map

单片机89C51，LCD12864密码锁程序设计程序。-Single-chip microcomputer 89C51, LCD12864 password lock program design process.

AT89S52单片机中数码管的循环显示的实现例子，可以让大家清楚看到这么用数码管来显示数字-AT89S52 MCU cycle of digital tube display examples realize that allows everyone to see so clearly with digital control to display the number of

这是一个MP3播放器，可以通过单片机发送命令来控制MP3中的歌曲-dri dfjrlg srep rieopw eiojf defr sderrt tg dft

8051-step motor-..........................................

基于单片机的数字频率计设计，定时器T0完成定时功能，T1采用计数功能-MCU-based design of digital frequency meter, timer T0 timing finish, T1 using count function