学习实践

大一阶段项目

自主设计C51单片机扩展板

老师给出电路图,自己设计原理图和PCB,自学EDA软件和各种参数的调节(导线线宽,过孔,信号线和电源线,电磁干扰等等),元件和封装的选型,了解如何购买相关型号元件,原理图转换PCB之后,PCB元件布局连线,之后自己学习摸索焊接芯片和元件(直插),烧录测试程序,学习了数码管的内部结构,结合和了四位数码管的程序代码设计

NE555双色灯和C51单片机学习

系统学习NE555的相关原理(芯片内部模拟电路功能)和动手自作了的NE555双色灯,学习C51基本硬件代码相关教程(开发板套件)

运算放大器、ESP32和平衡车Moku Go

在学长的指导下,设计了ESP32的扩展板,主要学习实践了乐鑫的ESP32的WiFi等等功能,基于Arduino IDE和C/C++编写程序。学习了一些运算放大器(LM358)的原理,设计了基于运放的红外测距装置。学习示波器、信号发生器万用表的项目实践中的使用。参加了集创赛,学习平衡车和moku go

声音定位小车

声音定位小车,使用了esp32作为主控,自己设计了二阶低通滤波器。

波形发生器的制作

使用1个NE555芯片和3个双运放LM358芯片,设计一个同时输出矩形波、锯齿波、正弦波I、正弦波II的波形产生

具体要求如下:

1、同时四通道输出,每通道输出矩形波、锯齿波、正弦波I、正弦波II中的 一种波形,要求有一定的带负载能力,以下所有参数在带上620欧姆电阻负载后进行测试。

2、四种波形的频率关系为1: 1: 1: 3 ,矩形波、锯齿波、正弦波I输出频率为1kHz,正弦波II输出频率为3kHz,各通道输出电压幅度峰峰值不小于3V。

3、频率误差不大于10%;通带内输出电压幅度峰峰值误差不大于5%;

4、制作1个交流有效值变换器,把正弦波I变换为直流。

要求完成该波形发生器的电路设计,绘制电路原理图和PCB,撰写开题报告。

Author

wwq136@163.com
I am a junior majoring in Measurement and Control Technology and Instrumentation, with a passion for exploration and innovation. I have participated in various competitions, such as the Electronic Design Competition and Intelligent Vehicle Competition, and have contributed to national innovation projects, including the development of a fruit-picking robot. I possess strong embedded systems skills, working with platforms like STM32, Arduino, Raspberry Pi, and Jetson Nano, alongside proficiency in C/C++ and Python programming. My interests lie in the intersection of robotics and artificial intelligence, particularly in areas like computer vision (CV) and natural language processing (NLP), with a focus on machine learning. I am constantly learning AI-related technologies and exploring ways to integrate them into practical applications, aspiring to develop digital twins incorporating AI. I use Ubuntu 22.04 both on WSL2 for Windows and on my server. Currently, I am preparing for the IELTS, aiming for a 7.0 score, with a current score of 6.5. My future academic goal is to study at a top 50 QS university in Australia, such as UNSW Sydney, the country’s top-ranked university for engineering. Post-graduation, I plan to pursue entrepreneurship, focusing on local AI model deployment, particularly in healthcare. In addition to my technical pursuits, I am fascinated by Western culture, history, and philosophy, and I look forward to returning to Europe to further explore these areas.
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