use-PCF8591-to-check-the-voltage

这是一份设计报告，内容为2FSK的数字通信系统，里面有仿真图和电路图(This is a designing report about 2FSK digital communication system)

利用stc51实现低频125k频段的读写器程序，包括读取EM41XX系列卡号，T5557卡的相应操作等。keil版本问4.0。编码采用曼切斯特编码格式。(The use of stc51 reader program for low-frequency 125k band, including read EM41XX Series card number, T5557 card corresponding operation. keil version Q 4.0.)

基于STM32F103RB单片机的驱动程序，可驱动TOSHIBA公司的1501系列CCD (Microcontroller based STM32F103RB driver to drive the company' s 1501 series TOSHIBA CCD)

static members source code for object oriented environment

基于430的DC_DC变化，采用PID控制，调节PWM的输出占公比，从而反馈调节输出电压(Based on 430 DC_DC change, using PID control, adjust the PWM output accounted common ratio, thus regulating the output voltage feedback)

CC1110的无线通信，点对点通信，CSMA，433M(CC1110 wireless communication, peer-to-peer communication, CSMA, 433M)

Simple app that communicates with the iPhone/iPod/iPad serial port for debugging/hobbyst purpose.

包含proteus仿真文件及c语言程序，在开发板上进行过运行。利用双色LED显示电路，和四位静态数码管显示电路模拟十字路口交通信号灯。4位LED数码管显示时间，双色LED灯显示红绿灯状态。熟悉交通信号灯控制逻辑。设计一个十字路口的交通灯控制电路，要求南北方向和东西方向两个交叉路口的车辆交替运行。每次绿灯变红灯时,要求黄灯先亮3S,才能变换运行车辆。东西方向、南北方向车道除了有红、黄、绿灯指示外，每一种灯亮的时间都用数码管显示器进行显示（采用倒计时的方法）。考虑到特殊车辆情况，设置紧急转换开头。(It contains proteus simulation file and C language program. It has been run on the development board. Two-color LED display circuit and four-bit static digital tube display circuit are used to simulate traffic lights at intersections. Four-bit LED digital tube display time, two-color LED lights show the status of traffic lights. Familiar with traffic signal control logic. Design a traffic light control circuit at the intersection, which requires the vehicles running alternately in the north-south direction and the East-West direction. Every time the green light turns red, the yellow light is required to turn on 3S before changing the running vehicle. In addition to the red, yellow and green lights in the east-west and North-South lanes, the time of each kind of light is displayed by digital tube display (countdown method). Considering the special vehicle situation, set up the emergency switch start.)

单片机程序led这是个很初级的程序，适合菜鸟学习，加油啊同志们(Microcontroller program is a very junior led the program for rookie learning, ah Come on comrades)

RAID卡的测试程序，写的不好哈，请大家原谅，(RAID card test procedures and writing bad Kazakhstan,)