MC9S12XS256RMV1

说明：  光伏发电系统三相逆变并网及其仿真研究，论文详解。(Study on three-phase inverter Grid connection and its simulation of photovoltaic power generation system)

利用STC15单片机实现对称PWM输出，可设置频率、占空比，利用JLX12863显示。( symmetrical PWM output based on STC15 MCU， frequency　and duty cycle can be setted, use JLX12863 display.)

说明：  本程序可实现基于51单片机的电子秤数据采集、滤波、显示功能。 称重范围：0-1000g 分辨率： 0.1g 测试精度：0.2g 设计架构：采用弹性悬臂梁贴应变片的传感器结构，应变片采用全桥连接。电桥输出经AD芯片发送给微处理器，微处理器经过数据处理后显示。(This program can realize the functions of data acquisition, filtering and display of electronic scale based on 51 single chip computer. Weighing range: 0-1000g Resolution: 0.1g Testing accuracy: 0.2g Design framework: The sensor structure of elastic cantilever beam with strain gauge is adopted, and the strain gauge is connected by full bridge. The output of the bridge is sent to the microprocessor by AD chip, and the microprocessor is displayed after data processing.)

学习C语言PID算法，P值I值D值在程序中如何调节控制。(Learning C language PID algorithm.How the P value I value D value regulates control in the program.)

基于STM32F103C8T6单片机的环境检测系统，应用DHT11温湿度传感器，MQ135烟雾传感器，检测环境温湿度，烟雾，可燃气，检测到烟雾蜂鸣器报警，将实时数据显示在OLED屏上，且有按键可以修改报警值。(Based on STM32F103C8T6 microcontroller environment detection system, DHT11 temperature and humidity sensor and MQ135 smoke sensor are used to detect ambient temperature and humidity, smoke and flammable gas, detect smoke buzzer alarm, display real-time data on OLED screen, and key can modify the alarm value.)

NRF2401-2.4G的无线通讯程序，51单片机完成(NRF2401-2.4G wireless communication procedures 51 MCU to complete)

驱动，用于解决arduino uno r3在计算机不被识别问题(Drive to solve the problem that Arduino uno R3 is not identified in the computer)

本程序为完整的用GT911芯片设计的触摸屏程序，可以供开始设计触摸屏的一个很好的参考，值的收藏(This program is complete with the GT911 chip design touch screen program, you can begin to design a touch screen for a good reference value of the collection)

说明：  ec20通信基于stm32单片机，MQTT协议连接移动的onenet平台。(EC20 communication is based on STM32 single chip microcomputer, mqtt protocol connects the mobile onenet platform.)

运用单片机实现烟雾、煤气报警和短路自检，主要用到ADC0809，AT89S51等。本项目最终做成实物，并能良好实现功能。有protel原理图，PCB布线图，完整的论文中有详细程序介绍。(Application of single chip microcomputer gas alarm and smoke, short circuit self-checking, mainly used in ADC0809, AT89S51 etc..This project eventually made real, and can well realize the function.Protel PCB schematic diagram, wiring diagram, the complete paper.)