U2 — project index / 12 entries

Work.

Authentication hardware, self-hosted tools, embedded firmware, and machines that balance, drive, and spin. Explore the hardware, software, and design decisions behind my engineering projects.

A — featured builds

01Embedded Security

JANUS — Offline RFID Access Control

An embedded appliance, from SPI driver to operator dashboard.

A standalone Raspberry Pi 4 appliance that checks RFID credentials and their expiry dates without an internet connection. It combines a register-level MFRC522 driver, a touchscreen interface, SQLite storage, and a Flask dashboard served through the device’s own Wi-Fi access point.

  • Register-level SPI communication with the MFRC522 reader and GPIO buzzer feedback.
  • CSV import with validation, operator preview, and atomic database updates.
  • SolidWorks enclosure design and bench characterisation of signal integrity, power, temperature, and read range.
  • Raspberry Pi
  • Python
  • SPI / RFID
  • Flask
  • SQLite
  • SolidWorks
02Full-Stack / OSINT

Zuniya — Personal Intelligence Terminal

A command center for information.

A self-hosted information dashboard with a 3D WebGL globe, live market data feeds, OSINT aggregation, and a compact interface for monitoring sources in one place.

  • React
  • Three.js
  • WebGL
  • Data Feeds
  • OSINT
  • Self-Hosted
03Web Application

Tankly — Fuel Price Tracker

Live fuel prices across Germany.

A Next.js application tracking real-time fuel prices via the Tankerkönig API. Geolocation-based station lookup, price comparison, and trend visualization. Deployed on Vercel with Neon DB.

  • Next.js
  • Tankerkönig API
  • Neon DB
  • Vercel
  • Tailwind
04Progressive Web App

Lunaa — Cycle Tracking, Illuminated

Track phases. Log days. Learn patterns.

A local-first React PWA with daily logging, cycle and symptom visualisation, and printable reports generated from the user’s own records. Data stays in browser localStorage; a service worker and self-hosted assets support offline use.

  • JSON backup and restore, CSV exports, and optional encrypted backups using AES-GCM.
  • On-device insights derived from logged data.
  • Automated tests covering cycle calculations, backups, reminders, and exports.
  • React
  • PWA
  • localStorage
  • Web Crypto
  • Offline-First
Open live app ↗

B — lab archive / hardware & coursework

The archive

Electronics / PCB Design

GSR Sensor Circuit & PCB

A practical electronics project exploring galvanic skin response, with circuit schematics, PCB design files, and a technical report. The project connects analogue circuit work with board layout and engineering documentation.

  • Analogue Electronics
  • Schematic Design
  • PCB Layout
  • Technical Documentation
Robotics / Computer Vision

Robotic Hand

Two-person build of a gesture-mirroring robotic hand. I modelled the hand in SolidWorks and assembled the prototype from actuators and 3D-printed parts, paired with real-time hand tracking written in Python with OpenCV and CVzone. Exhibited at an engineering project fair.

  • SolidWorks
  • 3D Printing
  • Python
  • OpenCV
  • CVzone
Embedded Systems

Line-Following Car

A Raspberry Pi vehicle provisioned through Ubuntu shell scripts and driven from a custom Apache/CGI web interface. Motors, drivers, and proximity sensors are programmed in C with browser control via CGI and JavaScript; the site streams a live camera feed, captures stills, runs over HTTPS — and doubled as a security case study demonstrating password-attack vulnerability with ncrack.

  • Raspberry Pi
  • C
  • Linux
  • Apache/CGI
  • HTTPS
  • ncrack
Thermodynamics

Stirling Engine

A working Stirling engine built almost entirely from reclaimed materials — steel wool, aluminium cans, a hand-made crankshaft, and wire. The build turns everyday scrap into a heat-differential engine, pairing hands-on assembly and tuning with a sustainability-minded look at alternative energy.

  • Thermodynamics
  • Prototyping
  • Sustainability
Microcontrollers

Temperature Sensor with Clock

An ATmega88PA firmware project in C combining a THT temperature sensor, LCD, real-time clock, and button interface into one multifunctional display (temperature + hh:mm:ss). EEPROM routines read, write, and clear time-stamped temperature records for persistent logging.

  • ATmega88PA
  • C
  • EEPROM
  • RTC
  • LCD
Control Systems

Segway Robot — Self-Balancing

Nonlinear state-space control model for a self-balancing Segway prototype. Live-tuned control parameters in MATLAB/Simulink, reducing oscillations by 30%.

  • MATLAB
  • Simulink
  • State-Space
  • PID
Mechanical / CAD

Bevel Gearbox Design

Complete 3D CAD model of a bevel gearbox system in SolidWorks with FEA stress analysis, dimensional optimization, and full technical documentation for manufacturing.

  • SolidWorks
  • FEA
  • 3D CAD
  • Ansys
Mechanical / CAD

Maneuverable Football Machine

Designed chassis, motors, and ball launcher mechanism in SolidWorks. Conducted structural calculations and FMEA analysis for reliability under varying load conditions.

  • SolidWorks
  • FMEA
  • Mech Calcs
  • 3D Design