FM24CL04

基于STM32的开关电源设计论文+开关电源原理图，其本质就是DC-DC设计。(STM32-based design of switching power supply switching power supply schematic thesis+, its essence is DC-DC design.)

说明：  单片机上电以后LCD屏上显示欢迎回家， 先验证指纹再验证密码 ，同时验证成功开锁 指纹和密码分别可以验证3次 3次都错蜂鸣器响 ，按下manage键进入管理员模式 可以修改密码 删减指纹，指纹用开关量表示(After the microcontroller is powered on, the LCD screen shows welcome home. First verify the fingerprint and then verify the password. At the same time, verify the successful unlocking fingerprint and password can verify that the buzzer rings three times and three times respectively. Press the management key to enter the administrator mode to modify the password and delete the fingerprint. The fingerprint is expressed by the switch.)

基于PSCAD/EMTDC搭建的CIGRE HVDC改进模型，仿真电压、电流图形比原模型的波形要稳定。(Based PSCAD/EMTDC built CIGRE HVDC improved model simulation voltage and current waveforms graphics than the original model to be stable.)

MSP430F149单片机按键LED程序 单片机学习第一步必写程序(The MSP430F149 microcontroller button LED program microcontroller learning first step shall be written procedures)

使用MSP430操作12864显示屏，共显示四行。可显示中文汉字(Use MSP430 operation 12864 display four lines total. Can display Chinese characters)

51单片机驱动无源蜂鸣器进行音乐输出1 使用了定时器，使用C51编译(51 Microprocessor Passive buzzer for the use of music output of a timer, the use of C51 compiler)

基于51开发平台，采用指纹十本模块，实现指纹识别，存储，对比等程序。代码注释详尽，采用外部EEPROM存储。(51 based on the development platform, using the ten fingerprint module, fingerprint identification, storage, comparison program. The code detailed notes, using external EEPROM storage.)

说明：  利用MSP430单片机实现5分钟倒计时。用Timer_A实现1s定时，4位共阳型数码管显示时间，显示格式为：“x-xx”，分别代表“分”、“十秒”和“秒”。每隔1s，倒计时器的时间减1，倒计时从4分59秒开始计时，至0分0秒结束，停止计时。(MSP430 microcontroller is used to realize 5 minute countdown. Timer_A is used to realize 1s timing and 4-bit common-sun digital tube display time. The display format is "x-x x", representing "minutes", "ten seconds" and "seconds" respectively. Every 1s, the countdown time is reduced by 1. The countdown time starts at 4:59 seconds and ends at 0:0 seconds.)

奋斗STM32开发板例程stm32GPIO口LED闪烁(Struggle STM32 development board routines stm32GPIO of port LED blinks)

SIM800C升级工具,二次开发工具，省成本的特别好用用的方案(SIM800C upgrade tool)