nRF905RX

cc2500的头文件。寄存器的设置使得传输速率为芯片的最大值250kbps，可支持6通道1k的采样率。(cc2500 header file. Register settings for the chip transfer rate makes the maximum 250kbps, can support 6-channel sampling rate of 1k.)

IOS端通过蓝牙发送和接收 用的是OC语言，在MACOS上编程(bluetooth sent data and bluetooth received data for IOS)

说明：  3231132213213132312311233312321(32312312132321321312312132)

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

说明：  用mcs-52系列单片机实现等精度频率测量，T1引脚接被测TTL信号，晶振22.1184MHz，对任何频率都可以实现很高精度的测量（精度<1 )，结果从串口字符串输出，波特率115200，可以用串口调试器观察结果.(With mcs-52 family of single chip and other precision frequency measurement, T1 pin then measured TTL signal, Crystal 22.1184MHz, any frequency can be achieved very high accuracy of measurement (precision<1 ), the result string from the serial output , baud rate 115200, serial debugger can observe the results.)

利用PID算法控制PWM输出电压，实现串联型数控电源，通过键盘输入控制期望电压(PID algorithm to control the use of PWM output voltage to achieve tandem CNC power, through the keyboard input control voltage expectations)

单片机初学者资料 51单片机C语言编程入门(详讲版)(Singlechip beginners )

说明：  电动车控制器 DC负安培高刹车防盗三速提速20带霍尔显示(Electric Vehicle Controllers )

MSP430上类似手机九宫格的英文输入控制(MSP430 keyboard on cellphone)

HT66F50单片机完整程序，测试通过。(HT66F50 SCM complete program test.)