Automated Magnetic Swing (2021)

Description: Created a swing that swings by itself using a solenoid, a magnet and a STM32. When the magnet swings near the solenoid, it cuts throught the B-field of the solenoid,current is produced due to Lenz's law, thus activating the solenoid after the change in signal has been detected, pushing the swing away. The solenoid is controlled by a transistor.

Tools / Technologies: STM32; transistors; solenoid coil

What I learnt: I've learnt more about electromagnetic induction; Lenz's law in real life; using transistors and STM32; analog signal processing

AC Train Motor Simulation & Harmonic Analysis (2024)

Description: To simulate how a 3-phase AC train motor is powered using IGBT pulsing that forms PWM waveforms and investigate the harmonics during accelertion and deceleration.

Tools / Technologies: Raspberry Pi; IGBTs; FFT; Python

What I learnt: I've learnt how to create PWM waveforms through IGBT pulsing; apply FFT to analyse harmonic content; more about motor control systems in trains; why certain trains have "melodious" sounds (Siemens VVVF sounds) when accelerating / decelerating

CarShare App (2024)

Description: Carpooling and socialising web-app prototype (UI mockup) that matches daily drivers and commuters who travel similar routes, offering a cheaper price for commuters and a bit of extra income for drivers to cover the expanses of owning a car.

Tools / Technologies: Kotlin; HTML; CSS; JavaScript; Firebase hosting; SQL Database

What I learnt: I've learnt how to design and structure a web-app; handle user requests using JavaScript; host and maintain a livesite using Firebase; embed a website into an app, creating a web-app; handle data using a database

Available on my GitHub

Electronic Portfolio (2025)

Description: Built an online portfolio from scratch to showcase my achievements, projects and long term goals. It serves as a personal hub for my resume, coursework and personal works in my fields of interests.

Tools / Technologies: HTML; CSS; JavaScript; GitHub

What I learnt: I've learnt how to use various functions of HTML and CSS; design and structure a web portfolio; handle user requests using JavaScript; host and maintain a livesite using GitHub; purchase and use my own domain

Available on my GitHub

The BioLeaf Initiative (2025)

Description: A modular rooftop system with microalgae bioreactors to generate clean energy while capturing CO2. Biomass will be harvested for lipids to be extracted, which turns into biofuel that can be burned to generate electricity. This system makes use of arduino to log the statistics of the surrounding and to control the surrounding pH level, dispense nutrients, circulate water and enables auto harvesting, thus improving efficiency.

Tools / Technologies: Arduino; Python, SQL Database; Data processing;Teamwork

What I learnt: I've learnt how to use make use of arduinos to automate systems; collect data scientifically; analyse data collected; write reports

This project was part of my CID 4 curriculum and Energy Innovation Challenge competition.
It was made possible through the joint effort of my teammates: Luo Ye; Chin Hao Yi; Wang Jing Xuan and my mentors: Mr Andy Ham and Mr Louis Chan.
Available on my GitHub