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利用STC公司的51单片机和DS1302编写的简单时钟，用于单片机入门试验，可供初学者学习借鉴(The use of STC' s 51 single and DS1302 write a simple clock for the microcontroller entry test for beginners to learn from)

模拟电表软件，主要模拟电表数据、遥测数据、参数修改、报文显示、可以模拟2个电表（可以自行修改增加），最终通过RS232转485输出。。。(Analog meter software, the main analog meter data, telemetry data, parameter modification, message displays, you can simulate two meters (which can be modified to increase its own), the final output through the RS232 switch 485. . .)

矩阵键盘1602液晶显示键值 矩阵键盘定义： * * P1.0-P1.3为列线,P1.4-P1.7为行线 * * 喇叭接P3.7口 矩阵键盘P1口，1602LCD (1602 keyboard matrix liquid crystal display the definition of key matrix keyboard:* * P1.0-P1.3 for the out-line, P1.4-P1.7 for line* * speakers then I P3.7 port P1 keyboard matrix, 1602LCD)

ADDERS USING DIFFERENT COMBINATIONS

信号灯控制的Keil、C51、Proteus仿真()

STM32F3与F4系列Cortex M4内核编程手册(STM32F3 and F4 Series Cortex M4 Kernel Programming Manual)

datasheet for the controller tft UC1682

说明：  超声波模块hc-sr04基于f4的超声波测距实验(Ultrasonic ranging experiment of hc-sr04 ultrasonic module based on F4)

用picture控件实现人脸检测画面界面显示和视频流的选择(Achieved with the picture control interface display screen face detection and video streaming options)

Windows系统搭建esp8266的本地Mqtt服务器，局域网点亮一盏LED灯(Windows system builds the local Mqtt server of esp8266, and the local area network lights up an LED lamp.)