Course Projects

This page is designed for the collection of my course projects since 2018, link to materials

Course list (in class identifier’s order):

• Digital Design (CS207): VGA controller
• Computer Application and System Design (CS209A): sudoku & magic square
• Embedded System (CS301): Wi-Fi communication based on STM32
• Operating System (CS302): xv6-rust
• Artificial Intelligence (CS303A): Reversi, IMP, Text classification
• Computer Network (CS305): rdt
• Data Mining (CS306): kdd-taxi-visualization
• Database Principle (CS307): mock-12306
• OOAD (CS309): Database Online Judge System
• Computer Security (CS315): Explore SUSTech LAN Vulnerabilities

Additionally, I have already done some projects out of interest:

• Analysis of the HTTPS traffic using man-in-the-midddle tool (mitmproxy): HTTPS analysis
• Semi-automated tool for browsering (using keyboard shortcut): Automated Web Crawler
• COVID-19 data visualization in Wuhan: C-19 in Wuhan

The overview of those project:

VGA-controller

• Technical Stack: Verilog, Minisys development board, Python
• Used serial port to transfer images/gif from laptop to the development board.
• Display the image or gif through VGA port on the monitor.
• Resize the images just as the background image in Windows desktop, such as tiling, filling, etc.
• Display the resolution on the development board.

Magic-Square-and-Sudoku-Solvers

• This repository may not be open-source if you CANNOT see the codes.
• Technical Stack: Java, Python, Javalin, Vue.js
• Solver for sudoku and magic square.
• Accelerated algorithm by evolutionary algorithm.
• Designed a web application to display the live current chess board.

WIFI-Module-Communication-STM32

• Technical Stack: C, STM32
• Installed two 2.4G WI-FI modules on separate STM32 development board and made them communicate to each other.
• Used USB serial port to transfer data from laptops to the STM32.
• Display the communication messages on the LCD screen on the STM32.
• Report is available on the GitHub repo.

Rust-Implementation-xv6

• Technical Stack: Rust, qemu, xv6
• Based on xv6 written in C, we try to implement it with Rust.
• This is the first time that I used Rust to program.
• Helped developer to debug in his project.
• Implemented a very simple file system.

AI-project

• Technical Stack: Python (scikit-learn), parallel computing
• First, designed and implemented the mini-max algorithm to compete on the zero-sum game Reversi, ranking 28 over ~180 students. (No ML)
• Second, design and implemented different models based on influence maximization problems, with full marks.
• Third, design and implemented text classification algorithm based on scikit-learn, with full marks.

RDT

• HIGHLIGHT: The best group among all the projects
• Technical Stack: Python
• Implemented a reliable-data-transfer protocol based on UDP.
• Simulated packet loss and low bandwidth during the transfer.
• Adopted event-driven tragedy to handle different states, such as re-delivery, ack and syn-ack.

Visualization-of-Taxi-Trip

• Video Link
• Technical Stack: Python, React, mapbox, deck.gl
• Given 3,000 taxi trips over the course of one day in Shenzhen (coordinates, timestamp, whether it has passengers on it).
• Data cleaning and data mining of these trips.
• Visualized the trips using deck.gl, mapbox, and React.

mock-12306

• Technical Stack: Java, Python (for crawling meta-data), Spring Boot, MyBatis, thymeleaf
• Aimed at mocking a small-sized 12306 train trip system in China.
• Crawled large amount of train trip data across the China.
• Designed efficient data storage in the database.
• Preprocessed the crawled data into what we want, and insert them into our designed database.
• Support queries, purchase, refund, etc. of the train trips.

Database-SQL-Online-Judge-System (Phantom OJ)

• HIGHLIGHT: The largest project that I have ever done (~7000 lines of code in backend development)
• Technical Stack: Java, Redis, Spring Boot, Spring Security, MyBatis, PostgreSQL, Python, Docker, Vue.js
• Designed an online judge system for our “Principles of Database Systems” class for homework automated corrction
• Multi-secured and multi-authority system for Teaching Assistants, Student Assistants, and students.
• Used Redis to cache the frequently used messages and data.
• Design Patterns: composite, MVC, REST ……

HTTPS-traffic-capture-and-analysis

• Technical Stack: Python, mitmproxy
• Man-in-the-middle capture
• Classify the traffic according to the IPs and content-type
• Give timely feedback to the pictures related to porn, violence, etc. (bad to children)

Automated Web Crawler

• Technical Stack: Python (requests, keyboard)
• Given a series of URLs (Json/csv/xlsx format), and use keyboard shortcuts to open these URLs in order.
• Get rid of Ctrl+C/V.
• Inspired when doing the quantum-computing research.