This cardless security system leverages human electrocardiogram (ECG) biometrics for authentication. It features an integrated printed circuit board (PCB) paired with a custom electronic door locking mechanism. The PCB houses an ECG acquisition system, audio/visual status indicators, and sufficient processing power to perform biometric identification. When an ECG credential is submitted, the system extracts 27 distinct fingerprint variables from the signal. These variables are then processed by a support vector machine (SVM) to generate a score that indicates the similarity between the submitted ECG and the authenticated user's ECG data. The SVM is trained on a comprehensive database of ECG signals, with system reliability being highly dependent on the quality and quantity of the training data used.

A collection of custom hardware, software, and artwork for my arcade projects. It includes several retro-inspired builds using modern hardware as well as a few modifications to repair/improve functionality on older commercial systems.

The design of this multifunctional PCB business card focused on two key objectives: seamlessly transferring contact information and serving as a personal keycard for simple authentication tasks, such as home automation. The front side displays personal details in text, along with a QR code containing vCard information. The reverse side features useful engineering references and formulas. Behind the QR code, an internal NFC antenna with a surface-mounted NT3H2211 chip enables touch functionality for access control or as an additional method for transferring contact information.

Note: Be sure to update the phone number and QR code information before reprinting.

This project focuses on designing and evaluating a brushless motor control circuit that implements both Sinusoidal Pulse Width Modulation (SPWM) and Trapezoidal Pulse Width Modulation (TPWM) techniques, without the use of positional feedback. The circuit integrates several subcircuits, including a Wien Bridge Oscillator, Triangle Wave Generator, Three Phase Generator, Comparator, Modulation/Inversion Circuit, and H-Bridge Driver. During testing, issues such as Wien Bridge instability, phase shift deviations, and back-emf voltage from motor rotation were observed. Despite these challenges, both SPWM and TPWM successfully actuated the motor within a 5Hz to 95Hz frequency range, with SPWM providing smoother performance compared to the more erratic TPWM.

This personal website is built with Jekyll and hosted on GitHub Pages, featuring a custom, responsive theme that is both lightweight and visually appealing. The design leverages modern HTML5 and CSS4 techniques for optimal browser compatibility, with minimal JavaScript (ie: glightbox, p5.js, KICanvas) used solely to enhance the user experience. Liquid is extensively employed for content management, automatically populating galleries, file listings, and project pages by pulling data from project repositories through a custom workflow. Additionally, all site settings and critical content are centralized in a config file, greatly streamlining the update process. The site also supports experimental browser based rendering of schematics, 3D models, and other dynamic content. The live version, serving as my personal portfolio, can be accessed here. Suggestions for improvement are always welcome.

LaTeX is a powerful typesetting system that is used for producing professional technical documents. This is my workspace for experimenting and scripting with said system to develop exceptional document styles that can be readily applied to a variety of reports, presentations, and articles. All custom LaTeX styles are consolidated within the templates directory to mitigate relocating files when switching between document formats. It includes an automated workflow that compiles, digitally signs, and then publishes all .tex files present throughout root level subdirectories. Compilation is performed via latexmk which automatically adjusts the command sequence to accomodate for supplimental LaTeX modules such as glossaries and bibliographys. In the event manual command setup is required, it is recommended to begin with lualatex or pdflatex and adjust as nessesary.

This repository is a public collection of scripts and programs I’ve developed to solve various problems and test different theories. The content is organized into folders based on either the parent software or the underlying programming language. The scripts cover a wide range of use cases, including automation, data processing, analysis, and more. You are welcome to reuse, modify, and distribute the code. If you have any questions, feel free to reach out.

This LabVIEW archive contains a collection of virtual instruments (VIs) designed for a variety of applications, including data logging, mass flow control, and digital communications. The archive serves as a versatile toolkit, providing reusable and customizable VIs to streamline the development of measurement and control systems. Each instrument is designed to simplify complex tasks, enhance system performance, and support efficient data acquisition and analysis across multiple domains.

This repository template is used to create projects with a standardized structure to allow for batch automated actions and structured releases. Said strucutre is also leveraged on my portfolio website as well as my LaTeX-Workshop to populate project information. Valid project categories include hardware, software, documentation or any combination of these. A checklist is provided outlining how to modify the template accordingly.