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stm32 sim900a 实现stm32拨打电话与接听电话(stm32 sim900a )

基于DS18B20+DS1302+lcd1602+MSP430的温度时间综合测量(temperature and time measurement based on MSP430,DS1302,DS18B20,LCD1602)

点阵LED、数码管、独立LED和无源蜂鸣器的驱动模块(Dot matrix LED, digital control, independence and passive buzzer LED driver module)

飞思卡尔的风单片机源程序，希望有帮助哦，记得好好刊登在用看(Freescale wind microcontroller source code, hope helpful Oh, I remember the good published in see)

AT89C51控制步进电机，实现正反转加减速，驱动芯片是ULN2803.(AT89C51 control the stepper motor to achieve reversing acceleration and deceleration, the driver chip is the ULN2803.)

一个虚拟DOS操作界面的小系统，一共有9条命令，可以在里面增加命令实现更多功能。(A virtual DOS interface small system, a total of 9 orders, which increased in order to achieve more.)

51单片机的示波器，所有资料,dajiakuaixia(an Oscilloscope by mini51)

说明：  单片机实现贪吃蛇游戏，本人使用的是51单片机，显示器为16*16点整控制，此类方法适合初学者玩耍~~(Snake MCU)

步进电机驱动，四相五线步进电机控制的测试程序，C51编写，读者可稍加修给即可应用(Stepper motor driver)

根据对应的按键值，对应输出相应的电容值，并做掉电检测(According to the corresponding key value, corresponding to the output of the corresponding capacitance values ​ ​ and do brownout detection)