I2C

基于mega128单片机写的modbus协议源代码。(ATmega128 for modbus)

A nice spaceshooter/space-travelling game written in tasm. You can buy and trade items, upgrade your ship, land on different planets and space stations, fight with space pirates in a huge map that is full with objects, asteroids, ship wrecks and others. In this version you start with more than enough money and if you die the game doesn t stop but your screen becomes a little "messy" (guys, this game remained in beta state :-) IMPORTANT: In game help is avaible if you press F1! It is really needed because I won t tell you here how to control the ship or access the world map! Btw there is a read.me file too, about some technical stuff if you want to know some interesting things...

2.4寸 TFT液晶屏在C51单片机上的刷屏测试程序(2.4-inch TFT LCD screen on a single chip in the C51 test procedure Shuabing)

说明：  OV7670照相模组硬件应用指南1.01 OVT，希望大家喜欢(OV7670 Photo Module Hardware Application Guide 1.01 OVT, I hope you like it.)

积分器的一种实现方法：每级积分器都是一个反馈系数为1的单极点IIR滤波器, 其传递函数为:(An implementation of an integrator: each stage integrator is a single pole IIR filter with a feedback factor of 1:)

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.)

说明：  光伏逆变器的双闭环控制仿真原理图 dc-dc采用mppt跟中(The double closed loop control simulation diagram of photovoltaic inverter)

单片机C51典型应用设计源码 包括液晶，串口，定时器计数器等内容(80C51 typical application design source including LCD, Serial, timer counter, etc.)

wincap以太网用的,proteus仿真以太网时用(wincap Ethernet use, when to use proteus simulation Ethernet)

本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。(the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the )