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Matthew Yong

Graduate Electrical Engineering Student
University of Melbourne
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About Meperson


Hi, I'm Matthew!

I am currently pursuing a Master of Electrical Engineering at the University of Melbourne. Driven by curiosity, I design and build projects to enhance my skills as a software developer and electronics engineer.

From past and projects internships, I have developed web applications, electronics, Internet of Things devices, mobile apps and games. Outside of coding, I enjoy Ultimate Frisbee, jazz, and a good cup of coffee.

Skills & Toolsfilter_list

wb_cloudy

Tools & Frameworks

  • Version Control: Git and GitHub
  • Front End: HTML, CSS , Materialize
  • Web Frameworks: Express.JS, React
  • NoSQL: CouchDB and MongoDB
  • OS: UNIX/Linux Command Line
  • Mobile: React Native, Android Studio
  • Scripting: Bash and Ansible
  • Cloud: AWS and Heroku
  • Deployment: Docker
    • edit

    Programming Languages

  • Java
  • C/C++
  • Python
  • MATLAB
  • Javascript
    • laptop

    Hardware & Engineering

  • Bus Protocols: SPI, I2C, UART
  • C Embedded Programming
  • Socket Programming
  • FPGA programming in Verilog
  • PCB Design using Altium Designer/EasyEDA
  • Wireless Communication protocols: RF, WiFi and LoRa
  • Embedded Tools: AVR/Atmel Studio and JTAG Programming
  • Electronic Boards: Arduino, RaspberryPi and ESP32/ESP8266

    • Education school


    University of Melbourne
    Master of Engineering

    July 2018 - December 2020

    Major - Electrical Engineering

    Specialization - Communications and Electronic Systems


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    University of Melbourne
    Bachelor of Science

    June 2015 - July 2018

    Major - Bioengineering Systems

    Minor Tracks: Electrical Systems, Computer Systems


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    Projectsbuild


    Work Experiencework

    8DGE Solutions
    Engineer Intern
    December 2019 - February 2019

    Smart Gas Detection System
    Created and developed a smart gas detecting device that tracks gas concentration levels and sends data over the web.

    Throughout my internship, I have:

    • Built system from scratch, from breadboard prototyping to PCB Design.
    • Presented a proof of concept presentation to industry clients to solve gas detection issues.
    • Designed a test web server and front end web interface that tracks live gas data.
    • Created a simple smart rat detecting circuit and an alarm button using radio frequency transmission and infrared detection.
    • Utilized: Express.js, HighChats, Arduino and ESP32 Boards, RF, LoRa, Git.
    University of Melbourne
    Research Assistant
    June 2019 - July 2019

    Spatially Adaptive Photographic System
    This electronic system provides a solution to shadows in potrait photographs by dynamically adjusting LEDs on an LED matrix using image processing algorithms in real time.

    Throughout development, I have:

    • Implemented TCP socket communication between python server and C++ client.
    • Designed a caching mechanism for sensor values using multi-processing.
    • Created consistent log debugging formatting information to console.
    • Implemented program guards to handle program exceptions.
    • Consistently documented workflow using commit messages.
    • Utilized: C/C++, Python, Linux, Git, Socket Programming. Embedded Electronics,

    University of Melbourne
    Research Assistant
    Jan 2018 - Feb 2018

    The EMU Robot for Upper Limb Rehabilitation
    The EMU Robot provides mechanical assistance to patients undergoing limb rehabilitation using gravity compensation techniques. I worked on improving the robot's back wheel design.

    Throughout my research experience, I have:

    • Taught myself computer aided design on SolidWorks.
    • Minimized mechanical costs to about 20% with new proposed design.
    • Gained robotic research experience in proposing, building and testing robotic parts.
    • Collaborated & presented ideas to supervisors, getting feedback on designs.
    • Leveraged knowledge on SolidWorks and 3D design techniques.

    Working Demonstration of the Robot:

    myBurgerLab
    Staff
    March 2015 - June 2015

    Worked casually as a part time staff in both kitchen and front of house departments.

    Key Responsiblities

    • Dealing with customer issues or complaints.
    • Communicating and collaborating with other kitchen staff during service.
    • Expediting dishes before being served.
    • Performed kitchen tasks such as frying and assembling.

    About Site Back to Top Resume

    Embedded Game Console

    Flappy Bird Demo
    Links
    GitHub Link: https://github.com/relientm96/gameconsole

    About

    This project was used to gain exposure to embedded system design involving micro-controllers and PCB design. Although this was a guided class project, I made several extensions to the software program of the micro-controller including a battery life reader, brightness control, C library that renders characters onto the LCD screen and mulitple classic arcade games such as Pong and Flappy Bird.

    Personal Games Programmed

    • Flappy Bird (simplified)
    • Etch A Sketch
    • Pong (with two level AIs)
    • Monty Hall

    Features of Device

    • Boost Converter power circuit to step up from 1.5V battery source to 3.3 V.
    • Screen brightness control by adjusting Pulse Width Modulation (PWM) frequency.
    • AVR Studio as an IDE to flash C code onto micro-controller via a JTAG board.
    • C character library used for LCD character displays.
    • Micro-controller interrupt used for event driven program including timer and button interrupts.
    • Battery level detector using Analog to Digital Conversion.
    • Serial Peripheral Interface(SPI) and bit banging communication between micro-controller to LCD.

    Project Development Chronology

    • Planned and implemented circuit functionality onto schematics on Altium Designer.
    • Routed and placed components to design Printed Circuit Board.
    • Soldered on surface mount components.
    • Programmed simple features on micro-controller using C, JTAG and AVR Studio.
    • Added various self made games and features to game console device.


    Feature Demos (more on GitHub)

    Pong Game Demo

    Screen Brightness Change Demo

    3D PCB Design

    Tweet Analysis Cloud Application

    Links
    Application UI Link: http://52.221.195.69/app/
    GitHub Link: https://github.com/relientm96/SinsOnTwitter

    About

    Worked in a group of five to develop a cloud based cluster application that analyzes how "sinful " Australians are on twitter based on the Seven Deadly Sins . Tweets are harvested, analysed, processed and stored onto a cluster database and results of analysis are displayed to users onto an interactive front end web application. Users could search keywords and select a particular sin to observe the amount of tweets with that word throughout each state through interactive charts. My main role in the team was to integrate system parts (Web application, database and tweet harvester) into a single three machine cluster system and deploy it onto the NecTAR cloud.

    Application Features

    • Uses a NoSQL CouchDB three node database cluster system.
    • Tweets harvested across Australia through Python's Tweepy Library.
    • Around 600,000 tweeets stored across three 80 GB volumes on the cloud.
    • Tweets processed and analysed using sentiment analysis and word indexing.
    • Web application designed using Flask and interactive charts created using Chart.js.
    • Application hosted on three Ubuntu Linux based virtual machines.

    Tools used in project

    • Ansible for automated system deployment which includes cloud resource provisioning and Linux bash commands.
    • CouchDB three node cluster setup using Docker for containerization.
    • Linux operating system command tools and environment (Ubuntu 18.04).
    • Apache2 as the HTTP server which proxies requests to the web application through mod_wsgi

    Project Gallery

    Diagram of System Architecture

    Online C Code Editor


    Links
    Application Link: http://online-c-code.dynalias.net/
    GitHub Link: https://github.com/relientm96/online_code_editor
    LinkedIn Article: https://www.linkedin.com/pulse/c-web-compiler-project-matthew-yong/

    About

    Made a Full Stack online C Code integrated development environment web application where users can log on to run C programs. Backend server created using C++ and POCO C++ Libraries and deployed onto an EC2 Windows server instance on the AWS cloud. Simple code samples are also provided to users.

    How it works

    When a user creates a project from the login screen, a .c file is created on the server's file system. Once the user is happy to compile their program, they would click 'compile' which sends the user's code on the editor as a text payload to the server. The text is copied into the .c file and the GCC compiler compiles the file. The server then responds by sending either the error output if there is an error in compilation or the successful compiled file output to the browser. Once the user closes the site, an automatic "DELETE " request is made to the server to delete the user's .c and .exe files to clear space.

    Features

    • C++ Backend with GCC 6.3.0 C compiler
    • FrontEnd user code text editor interface
    • Sample simple C programs provided
    • Registration feature for users

    Utilized

    • POCO C++ Libraries
    • CodeMirror as code editor
    • HTML, CSS, Javascript and Bootstrap for front end web design
    • RESTAPI calls to backend and handling of JSON payload.

    Social Media Community Application

    (View project repository here )

    Links
    Application Link: https://expo.io/@matthewyfy/gcApp
    GitHub Link: https://github.com/relientm96/gcapp

    About

    A mobile application developed to provide administrative tools for small christian community members. This project was built to teach myself React Native and get exposure to mobile app development. As it is still in development, application demo is only available through the Expo app.

    Features

    • Event view for event organization.
    • Allows groups to upload/manage prayers to a prayer list.
    • Enable leaders to upload new weekly studies easily.

    Utilized

    • React Native as the framework.
    • RESTAPI calls to Firebase backend using fetch api.
    • Expo to easily deploy onto mobile device.


    Shadow Blocks Game

    Links
    GitHub Link: https://github.com/relientm96/ShadowBlocks

    About

    An Object Oriented based game designed using Java and Slick2D Graphical Libraries. This was a class project for my object oriented course, in which I personally extended it by adding more puzzle levels and new sprites with different behaviours and actions.

    Features

    • Different player actions for each level.
    • 20 Levels of challenging puzzles to solve.
    • Built using Java and Slick2D (Java 2D game library).
    • Levels are made using csv files, where each row stores the sprite name to render, x coordinate and y coordinate render positions.
    • Game sprites are created using a factory design pattern.

    Utilized

    • Java Eclipse IDE to develop application.
    • Slick2d Graphical Libraries for spirte rendering.


    Online Greenhouse Mangement System

    Video demonstration of web application

    Video demonstration of alarm

    Links
    Application Link: http://pollpots.dynalias.com
    GitHub Link: https://github.com/relientm96/plantHumidity

    About

    This project was built to manage or control remote sensors using an online web application interface. on the cloud. Web application client polls the ESP8266 Sensor Server to get live sensor data. ESP8266 server configured using ESP8266's Web Server Libraries and Arduino IDE.

    Features

    • Online web interface that lets user track live sensor data.
    • Alarm on device when an object approaches close to the device.
    • Piezo Buzzer that plays the Mario theme or the Pirates of the Caribbean theme.

    Utilized

    • Ubuntu EC2 AWS to deploy application.
    • Express Backend.
    • CouchDB Database.
    • HTML, CSS, Javascript and JQuery.
    • Materialize as CSS framework in user interface design.
    • Continuos AJAX queries to remote sensor server.


    Project Gallery
    Side View of Device
    Top view of Device

    Digital Signal Oscilloscope

    Video demonstration of the Web Interface

    Links
    GitHub Link: https://github.com/relientm96/DSO2019

    About

    This project was made to gain exposure to electronic system design guided by the ELEN90053 Electronic System Design subject at the University of Melbourne. Personally, I added an external IOT Circuit made with an ESP8266 to enable web communication. Additionally, I created a front end web interface to view the amplitude and Fast Fourier transform plot of the signal.

    Features

    • Printed Circuit Board designed in Altium Designer.
    • Atmega16 microcontroller programmed in C.
    • ESP8266 WiFi chip with OLED Screen Display.
    • Web Interface displaying waveform and discrete fourier transform plots, developed using Express.js, HighCharts and Materialize.
    • Created a 3D printed encolusre using SolidWorks.

    How it works

    Input signal is first pre-processed during the input stage of the device. Signal goes through impedance scaling, filtering and level shifting before being fed into the Analog to Digital converter stage. The signal is then sampled as an 8-bit value at sampling rates 40 MHz, 20 MHz or 10 Mhz chosen by the user. 8-bit sampled values are then stored in 2 8-bit buffers which is then later transfered to the micro-controller and sent to the web browser and computer GUI. The CPLD acts as a decision making device that routes signals based on logic gates at the chosen high sampling rates.


    Block Diagram of Entire System and it's subsystems

    Project Gallery
    Video demonstration with Computer GUI and Web

    View of finished design

    View of IOT ESP8266 Add-On Circuit

    View of device with 3D printed enclosure

    3D View of Designed PCB

    2D View of Designed PCB

    Arduino Audio Processing Shield

    Picture of designed audio shield

    Links
    Schematics Link: https://easyeda.com/matthewyfy/arduino-audio-processor-shield
    GitHub Link: https://github.com/relientm96/unoAudioBoard

    About

    Inspired by my Signal Processing class, I created a real time digital audio processing shield that can be mounted onto an Arduino UNO board. The board takes in audio and adds in digital audio effects in real time. Input audio is first pre-processed at the input stage before being fed into the Arduino's Analog to Digital converter. The ADC represents the signal as an 8-bit digital value and is then given the chosen effect. After processing, the Arduino outputs the processed audio as an 8-bit value into a digital to analog converter to produce the sound with desired effect.

    Programmed Effects

    • Flanging
    • Phasing
    • Chorusing
    • Distortion
    • Tremolo
    • Bit Crusher

    Features

    • An op-amp based pre-amp circuit.
    • OLED Display, showing the current effect applied to the input audio.
    • Output audio played using an 8-bit R2R resistor ladder DAC.
    • Can be connected to an electric guitar for digital audio effects.

    Project Gallery
    Video demonstration of tremolo effect on electric guitar

    Video demonstration of flanging effect on electric guitar

    Video demonstration of phasing effect on electric guitar

    Video demonstration of chorusing effect on electric guitar

    Arduino Waveform Signal Generator

    Video Demonstration of Arduino Nano Prototype with speakers and oscilloscope (WARNING Audio may be loud!)

    Links
    GitHub Link: https://github.com/relientm96/digitalSigGen

    About

    I created this project to understand and learn more about how digital audio synthesis. This digital waveform generator is capable of producing sine, square, sawtooth and triangle waveforms from an Atmega328p micro-processor. I made two versions, with one being an arduino nano prototype and the other an Arduino Uno shield. Both consists of an R2R resisto ladder Digital to Analog converter and buffed with an op-amp voltage follower. It can also play back PCM encoded audio.

    Features

    • Able to generate Sine, Triangle, Square, Sawtooth waveforms.
    • Capable of playing PCM encoded audio.
    • 8-bit R2R Digital to Analog converter using resistors and an op-amp voltage follower.
    • Two versions, one being the Arduino UNO shield and the other an Arduino Nano prototype.

    Utilized

    • Digital Signal Processing in C/C++.
    • Arduino IDE environment.
    • Pulse Code Modulation encoding.

    Project Gallery
    Video demonstration of the Arduino UNO shield

    View of Arduino Uno Shield

    View of Arduino Nano Prototype


    Arduino Power Meter

    Video Demonstration using an aeroplane motor

    Links
    Schematics Link: https://easyeda.com/matthewyfy/power-meter

    About

    Designed a simple Power Meter that is able to measure voltage, current and power consumption of a circuit. Made with an Arduino Nano, INA219 Voltage/Current Sensor and a 128x32 OLED Display. Both INA219 and the OLED display communicate with the Arduino Nano via the I2C protocol. Created schematics using EasyEDA.

    Features

    • Able to measure voltages between 26V to -26V.
    • Prototype soldered onto a prototype board.

    Utilized

    • Arduino IDE environment.
    • I2C protocol.

    Live Result Tracker

    Video Demonstration of application

    Links
    Live Demo: http://toto-live.dynalias.com/
    GitHub Link: https://github.com/relientm96/totoLive

    About

    Created a full-stack web application that tracks live Toto results. Application uses Python and BeautifulSoup to scrape online data and places it in a MongoDB cluster database. Web interface then displays the current latest results and is built using Express.js, Node.js and Materialize CSS.

    Utilized

    • MongoDB
    • Express.js and Node.js for back-end
    • HTML, CSS and Javascript for front-end

    About this Site

    This site was built to leverage my knowledge in Front End web design using HTML, CSS, Javascript.

    • Built using Materialize, a modern responsive CSS framework.
    • Fade Animations using animate.css and waypoints,
    • Hosted on Github pages (Link to Repository).


    Graduate Coursework


    Electronics and Embeddeddeveloper_board

    • Electronic System Design

    • Embedded Systems

    • Electro-magnetism

    Communications and ITlaptop

    • Digital Communication Systems

    • Cluster & Cloud Computing

    • Computer Networks

    Controls and Signalscell_wifi

    • Statistical Signal Processing

    • Digital Signal Processing

    • Control Systems


    Undergraduate Coursework


    Electricalflash_on

    • Signals and Systems

    • Electrical Network and Analysis

    • Digital System Design

    Computingdesktop_windows

    • Data Structures & Algorithms

    • Object Oriented Programming

    • Engineering Computation
    Biomedicallocal_hospital

    • Biosystems Design

    • Biotransport Process

    • Introduction to Biomechanics