webrtc_vad

通过51单片机串行转并行，扩展IO口，实现四个步进电动机的控制。(By 51 microcontroller serial to parallel IO expansion port, to achieve four stepper motor control.)

实现对气体流量表的基于音速喷嘴的自动检定(testing for the gas flow meters based on stangdard acoustic nozzles)

不错的拓普微3.5寸LCD显示屏驱动代码，可以参考(Good TOPWAY 3.5-inch LCD display driver code, you can refer to it)

CARRIER todo esto es un documento elaborado con la mayora facilidad

max7219，利用51单片机控制，点阵显示(max7219, 51 single-chip control, dot matrix display)

这段代码包括了基于STM32对简单小车的循迹壁障以及L298N的驱动。并对其中关键部分进行了注释。(This code includes a simple car-based STM32 tracking barrier and L298N driver. And one of the key parts of the notes.)

stc12c5a60s_spi直接驱动st7920(12864) 串口驱动、只用个IO口(stc12c5a60s_spi direct drive st7920 (12864) serial driver, only with a IO port)

基于AT89C51单片机的出租车计价器的程序设计(AT89C51 microcontroller Taximeter-based program design)

电路模块表面组装技术(上)，介绍SMT的组装和检测技术以及相关重要知识。(Circuit module surface mount technology (on), introduced SMT assembly and testing technology and related critical knowledge.)

SSD6实验，该实验练习指导如何分析测量程序的性能。这个实验完成后，你应该能够  理解如何测量程序的运行时间、  调整你的计划，以更快的知道的重要性(This laboratory exercises guide you how to measure the program’s performance using profiling. On completion of this laboratory, you should be able to  Understand how to measure the program’s running time  Be aware the importance of tuning your program to be faster)