Keyboard-

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.)

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.)

这是一个基于单片机的LCD显示程序，驱动LCD1602,并显示两条字符。(This is a microcontroller-based LCD display, driver LCD1602, and displays the two characters.)

bms 管理软件，c语言编写，基于单片机编写(bms management software, c language,)

51单片机入门学习资料，适合初学者下载。(Getting Started 51 MCU learning materials, suitable for beginners to download.)

与沉默的开关为iOS，精选ios编程学习源码，很好的参考资料。(And the silence of the switch is iOS, select learning IOS programming source code, a good reference.)

用138,595控制的点阵，附带两个不同控制方式的源程序以及电路连接图，(With 138,595 dot control, with two different control modes of the source and a circuit connection diagram,)

STM32 SPI口的应用例程，可是设置成主模式或者从模式。(STM32 SPI routine application of the mouth, but set to master mode or slave mode.)

ST7565是一款点阵液晶驱动芯片，它具有并行与串行（SPI）两种接口.(ST7565 is a dot matrix LCD driver chip, it has the parallel and serial interface (SPI) two.)

J1939 protocol description