graphics

基于51单片机，核心模块mt8880实现的无线电话应急系统，插上电话线，实现报警功能（向手机拨打电话）(Based on 51 MCU the core module mt8880 achieve wireless telephone emergency system, plug in the phone line, alarm function (the phone call))

使用读卡器实现了为个人化的IC卡数据读写(Achieved using the reader for personal IC card data read and write)

软件弹窗添加器源码程序，置入汇编代码，调用API函数向软件添加弹出窗口。(Software pop feeder source program, into assembly code , call the API function to add pop-ups to software.)

Call Log Provider extends Content Provider for Andriod.

Proteus画的51单片机超声测距并仿真。(Proteus carry out the ultrasonic measure distance circuit using 51SOC and simulate。)

只能小车寻线与避障加寻光51单片机代码，就是全国电子设计竞赛1999年的E题啦。(Only the car line code 51 single-chip microcomputer and obstacle avoidance for light)

机器人利用超声波控制避障功能，减速、停止(Ultrasonic controlled obstacle avoidance)

说明：  基于STM32F103单片机的DHT11测试源码(DHT11 test source code based on STM32F103 MCU)

ieee9节点配电网采用前推回带法计算电压，电流(Ieee9 node distribution network USES the former back zone method to calculate the voltage, electric current)

无线模块nrf24l01,51单片机，12864中文液晶(Wireless module nrf24l01, 51 microcontroller, 12864 Chinese LCD)