LKT4200

说明：  是一款用于基于北斗GPS解析数据的上位机软件，适用于K60单片机。(zasxaceacascawsssssssss)

TLC5615 D/A转换，用keil C51 编写(TLC5615 D/A conversion with keil C51 prepared)

说明：  sht20温度湿度读取源码,C语言源码，自测成功，STM32平台(read the sht20, and show the temp and hum.)

实现简单自动售货机的基本功能。投币找零功能，并用Led数码管显示，输出结果用Led显示。(Basic functions simple vending machines. Coin change for function and use Led digital tube display, the output display Led.)

说明：  Quectel移远手册，EC20 R2.1 AT指令和 GobiNet/WCDMA驱动(Quectel move away manual, EC20 R2.1 at instruction and gobinet / WCDMA driver)

说明：  STM32L053+AD8232简易的便携式心电采集蓝牙传输PCB(Stm32l053 + ad8232 simple portable ECG acquisition Bluetooth transmission PCB)

在stm32的cpu上移植freertos操作系统，程序在freertos基础上实现了，按键扫描，led灯控制，串口收发处理，定时器中断程序等功能。使用MDK打开工程文件即可。(Stm32 on the cpu transplant freertos operating system, the program freertos based on realized, key scan, led lamp control, serial port transceiver processing, function timer interrupt procedures. MDK can open the project file.)

说明：  STM32 的GPIO操作示例程序代码, 试用与Keile环境STM32F103代码(STM32 GPIO operation code)

说明：  介绍了一种用加速度传感器测量振动位移信号的方法。 该方法采用频谱转换法，首先将加速度谱转换成位移谱，再计算出位移谱中每个频率分量对应的幅值 、圆频率和初相角，最后对各位移分量进行叠加得到振动位移的时间历程。 验证试验结果表 明该方法 可行 ， 精度可满足工程 实践的需要 。(A method of measuring vibration displacement signal with acceleration sensor is introduced. In this method, the acceleration spectrum is first converted into displacement spectrum, and then the corresponding amplitude, circular frequency and initial phase angle of each frequency component in the displacement spectrum are calculated. Finally, the time history of the vibration displacement is obtained by superimposing each frequency component. The test results show that the method is feasible and the accuracy can meet the needs of Engineering practice.)

2008吉林省电子设计竞赛试题，很有用的。练习项目制作。(2008吉林省电子设计竞赛试题，很有用的。练习项目制作。 Jilin Electronic Design Contest 2008 test, very useful. Practice production project. )