USART

说明：  stm32f103与手机APP合作开发蓝牙重力感应小车(Stm32f103 cooperates with mobile APP to develop Bluetooth gravity sensor car)

说明：  使用SONIX的IC來驅動PWM功能、T0T1的計數器(Using SONIX IC to drive PWM function and T0T1 counter)

说明：  简单的lcd1602显示代码，说明通俗易懂(Simple lcd1602 display code)

320240触摸绘图程序，查询方式和中断方式两种测试例程(320240 touch drawing program, query way and interrupt way two test routines)

AT30TSE75X 带有eeprom温度传感器驱动 (AT30TSE75X driver)

博世九轴传感器BMX055的驱动代码，C程序代码，包括加速度传感器，陀螺仪，磁力计驱动的实现(Bosch nine-axis sensor BMX055 driver code, C code, including the accelerometer, gyroscope, magnetometer driven implementation)

法国Humirel公司新一代HTU21D温度和湿度传感器驱动(The Humirel HTU21D is a new generation of temperature and humidity sensors)

说明：  该库函数用于驱动L293D模块，电机的前进后退等代码封装在里面面(The library function is used to drive L293D module.)

单总线温度DS18b20程序，适用于AVR单片机。(Single-bus temperature DS18b20 procedures applicable to the AVR microcontroller.)

基于零速更新算法的步态检测，在STM32单片机上实现，效果很好，可以计算出位移，角度等。(Based on the zero-speed update algorithm gait detection, STM32 microcontroller to achieve, the effect is very good, you can calculate the displacement, angle and so on.)