stm32_LD3320_SDcard_mp3

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)

宽频放大器,有以下功能: 预置增益,增益加/减,显示输出电压有效值,自动增益 显示有效值. 增益输入及加减 自动增益没有实现(Wideband amplifier has the following functions: Preset gain, gain plus/minus, the display output voltage RMS, automatic gain display rms. AGC gain input and subtraction is not implemented)

STM32 4路AD+5110显示 ( )

超声波测距，在51单片机内核下的超声波测距程序，比较精简，希望大家受用。(Ultrasonic ranging, in 51 single kernel of ultrasonic distance measurement procedures, more streamlining, I hope everyone is good enough.)

STM32单片机freemodbus的移植，主从机的都有(1, transplant FreeModbus1.5 and RT-Thread1.1.1 to STM322, development platform supports Eclipse, Keil, IAR3, can be used in the Eclipse plug-in version management EGIT 4, support Modbus RTU (ASCII untested))

红外的收发测试。。通过2路红外发射，顺序接收，检测收发功能是否正常(Infrared transceiver test. . 2-way infrared transmitter, received out of sequence detection transceiver function is normal)

实现声音导引小车运动，智能小车程序C51代码(Achieve sound AGV Sport, smart car program code C51)

红外遥控解码，基于51单片机的例程，简单实用，我在学习单片机的时候用到的(Infrared remote control decoding, based on 51 MCU routine, simple and practical, I used the time to learn microcontroller)

使用Ht66fu50单片机设计闹钟，使用12864显示，DS1302时钟芯片，DS18B20温度传感器，蓝牙的相关硬件，该作品获得天津市合泰杯三等奖。(Use Ht66fu50 microcontroller design alarm clock, use 12864, DS1302 clock chip, DS18B20 temperature sensor, Bluetooth related hardware, the work won the third prize of Tianjin cup of Thailand.)

无线模块SIM300硬件设计最新资料V4.02。可供从事学习、开发无线通信有关人员参考。(SIM300_HD_V4.02.rar)