Ultrasonic-Ranging

用89C51单片机控制的直流电机C语言程序，程序简单有中文解释！(89C51 microcontroller with the control of DC motor C language program, the program simple to explain in Chinese!)

通过51单片机设计一个电子时钟，精确到秒，可以通过按键调节时间(By 51 microcontroller design an electronic clock, accurate to seconds, you can adjust the time by pressing a button)

YL_3串行数码管显示时钟，74HC595，8位，显示时分秒，自动计数。(YL_3 serial digital display clock, 74HC595, 8 bit display minutes and seconds, automatic counting.)

基于单片机的数字电容表设计代码，包含数码管的显示(Based on single chip microcomputer digital capacitance table design code )

avrmega16的频率计源码，在2m以内误差为1-3hz，1602显示(avrmega16 the frequency of source, in less than 2m error 1-3hz, 1602 show)

说明：  自动加料机控制系统 以单片机实现 用于毕业设计 (Automatic feeder control system the MCU for graduation design)

汽车遥控钥匙RKE开发：pcf7961相关资料及代码，包括库应用文件、HITAG-3协议说明及软件架构等PDF资料。(RKE development.Remote Keyless pcf7961 relevant information and code, including database application files, HITAG-3 protocol description and software architecture PDF files.)

RF1100无线模块与英飞凌CX8868位微控单片机(i can t)

程序是DS1302做的电子时钟，内部有DS1302的datasheet和具体的程序(Program is the DS1302 doing electronic clock within the DS1302 datasheet and specific program)

STM32F1与FPGA通过SPI进行通信，我上传的是32部分的程序，已经通过串口测试成功。此程序可拓展为和单片机，DSP通过SPI进行通信(STM32F1 and FPGA communication through the SPI, I uploaded the 32 part of the procedure has been successfully tested through the serial port. This program can be extended to and single-chip, DSP communication through the SPI)