USART

This header, excluding the ifdef __KERNEL__ part, is BSD licensed so anyone can use the definitions to implement compatible drivers servers.

说明：  基于STM32嵌入式系统的温湿度传感器系统源代码(Source Code of Temperature and Humidity Sensor System Based on STM32 Embedded System)

显示器功能 加快程序开发初学者的进步脚步。让他们了解简单的显示程序的写法(Monitor function to accelerate the pace of progress in program development for beginners. So that they understand the simple display program wording)

说明：  51单片机矩阵键盘程序 51单片机矩阵键盘程序 51单片机矩阵键盘程序 51单片机矩阵键盘程序(51 single-chip single-chip microcomputer 51 program matrix matrix keyboard keyboard keyboard matrix 51 SCM procedures procedures procedures keyboard matrix 51 SCM)

说明：  复制其中的“UV4.CDB”文件，复制到KEIL4的“UV4”文件夹中；(Copy the "uv4. CDB" file to the "uv4" folder of keil4;)

可以通过STM32的AD采集测出正弦波的频率，并在液晶屏上显示出来。（原子的mini板可直接用）(AD can gather through the STM32 measured sine wave frequency, and displayed on the LCD screen. (Atoms mini board can be directly used))

基于Tm4C123G的三相SPWM，能够实现DC_AC的变换 可结合现在流行的微电网和泛在电力物联网技术(Three-phase SPWM based on Tm4C123G can realize DC_AC transformation. It can be combined with the popular microgrid and ubiquitous power Internet of things technology.)

说明：  电机驱动和FOC算法分析，用st单片机和PSIN32F0实现。(The analysis of motor drive and FOC arithmetic is realized by ST MCU and PSIN32F0.)

说明：  NB-IOT智能燃气表用以实现燃气表的物联网功能(Nb-iot smart gas meter is used to realize the Internet of things function of gas meter)

说明：  可以通过图片制作自己想要的东西,大家可以自己制作U盘。(You can make what you want through pictures, and you can make your own U disk.)