MCU 8051 series, buzzer sound code! 8051 series MCU, audible buzzer code!

用C51I/O口来驱动两个四位数码管，并且可消隐，降低功耗。-With the C51I/O port to drive the two four digits

这个SP2358外扩串口芯片的C语言源程序。非好好用。-Extend outside the SP2358 chip serial C language source code. Non-properly used.

时钟芯片DS1302的程序-Clock chip DS1302 procedures

8051的一些算法，浮点转换程序库，可以直接应用-algorithm, floating-point conversion, you can direct applications

单片机做的电风扇控制器，主要用于定时和灯光指示，内含C源代码，原理图及PCB。-Single-chip to do the electric fan controller, mainly used for timing and lighting instructions, includes C source code, schematic and PCB.

基于8051单片机的交通灯设计,里头包含有原理图与全部8051单片机汇编代码。-8051 based on the traffic light design, inside and schematic contains all the assembly code 8051.

动态扫描键盘,键盘采用矩阵式结构,用KEILC51编译并运行过,可靠性好-Dynamic scanning keyboard, the keyboard matrix structure, using KEILC51 compiler and run-off, reliability, good

基于51单片机的1602显示的计算器，没有附电路，如有需要请与shenchangwei945@163.com联系-Based on the 1602 show 51 single-chip calculator circuit is not attached, if necessary, please contact shenchangwei945@163.com

IO口模拟串口发送，可用于双串口，可被其他程序调用 void rs2_send_byte(uchar cByte) 向串口发送一个字节-Send serial port analog IO, can be used for dual-serial port, other procedures can be called void rs2_send_byte (uchar cByte) sends a byte to the serial port

avr 源代码 mega16 例程 大约30个 -avr source code mega16 routine about 30