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STM32项目实战之FatFS文件系统例程（SD卡、Flash和U盘）功能实现代码,对于初学者来说，是有非常的帮助效果的(STM32 project combat the FatFS file system routines (SD card, Flash and U disk) function implementation code, for beginners, it is very help effect)

说明：  手机 监控智 能农场 温度 湿度 光照(Mobile phone monitoring of temperature, humidity and illumination in smart farms)

2009年全国大学生电子大赛设计LED书写板的程序和电路原理图！(2009 National Undergraduate Electronic Design Contest LED writing board procedures and the circuit diagram!)

说明：  ESP8266 PWM控制一盏LED的亮度变化。(ESP8266 PWM controls the brightness change of an LED.)

stc89c52单片机驱动蜂鸣器的程序，延时函数用定时器方式编写。(stc89c52 MCU-driven buzzer procedures, with the timer delay function approach to the preparation.)

通讯规则: 1:时钟7.3728 MHz/波特率9600/9个数据位/奇校验/1个停止位/硬件多机通讯功能/ 2:通讯连接采用硬件MAX485,双向单工 (Communication rules: 1: clock 7.3728 MHz/9600 baud/8 data bits/odd parity/1 stop bit/hardware, multi-machine communication/2: Communication connection using hardware MAX485, two-way simplex)

说明：  msp430单片机的毫伏表程序，四位数码管显示(msp430 microcontroller millivoltmeter program, four digital tube display)

AVR各种应用小例程,包括各种常用传感器，液晶，步进电机，语音等等(AVR application, common sensors, LCD,stepper motor,voice, etc.)

ATMEG128单片机开发板上自带的LED点阵源程序，给大家分享一下(ATMEG128 microcontroller development board comes with the LED dot matrix source, to share with you)

ms单片机，兼容pic单片机实现红外控制功能同时实现串口输入输出(MS microcontroller, compatible with PIC MCU infrared control function, while achieving serial input and output)