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Selected work.

A cross-section of projects from the past decade — hardware, firmware, software, and the tooling that connects them. Search or filter to find what you're after, then expand a card for the technical highlights.

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Placeholder preview image for the fawzifansa.info website project
  • Designed and built a fast, content-first personal site and portfolio platform with Astro
  • Set up Markdown-based content collections so blog posts and portfolio projects can be added without touching code
  • Implemented a bilingual EN/DE structure with hreflang tags and a full SEO layer (sitemap, Open Graph, JSON-LD)
  • Built a small custom design system in plain CSS — no framework — for full control over look, feel, and performance
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Placeholder preview image for Firmware Platform for Industrial Heating Controllers
  • Developed and maintained firmware across four controller product series
  • Implemented device functions and low-level (UART) hardware interfaces
  • Focused on stability, testability, and production integration
  • Technologies: C, dsPIC33, PIC24, UART
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Placeholder preview image for Hardware Redesign for Mechanically Stressed Industrial Electronics
  • Analyzed and modified circuit sections on three controller variants
  • Addressed mechanical stress points and obsolete/unavailable components
  • Kept changes compatible with existing mechanics, enclosures, and production
  • Technologies: Eagle CAD, LTspice, PCB design
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Placeholder preview image for Support for EMC and IP Certification
  • Prepared and supported EMC certification activities
  • Coordinated IP enclosure classification with hardware and device design
  • Connected development work with standards-oriented testing
  • Focus areas: EMC, IP classification, validation
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Placeholder preview image for Analog Retrofit Module for Legacy Machines
  • Converted UART controller data into 4–20 mA and 0–10 V industrial signals
  • Added an analog setpoint input, analog feedback output, and digital I/O (SSR trigger, stop input)
  • Enabled modern controllers to be retrofitted into older machines
  • Technologies: UART, 4–20 mA, 0–10 V, digital I/O
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Placeholder preview image for CAN Bus Extension for Multiple Controller Families
  • Designed a UART-to-CAN bridge module compatible with five controller families
  • Implemented the CAN physical layer and protocol stack
  • Added diagnostic tooling for the communication link
  • Technologies: CAN, UART, C
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Placeholder preview image for Modbus Communication with Limited UART Resources
  • Implemented reliable Modbus/RS485 direction and timing control without RTS/CTS lines
  • Built a separate C# tool to test and validate Modbus parameters
  • Delivered a production-tested register map and exception handling
  • Technologies: Modbus, RS485, UART, C, C#
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Placeholder preview image for WiFi Communication Module Feasibility Study
  • Guided an intern through hardware, firmware, and webserver development
  • Built a concept for remote device-data transmission over WiFi
  • Assessed technical feasibility and integration into the existing device architecture
  • Technologies: WiFi, embedded TCP/IP, webserver, OTA updates
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Placeholder preview image for Automated Flashing and QA Tool for Production
  • Automated binary flashing and order-specific parameter loading from a database
  • Ran QA checks and generated PDF reports with serial numbers and tester data
  • Archived results to a server for full production traceability
  • Technologies: C#, Visual Studio, database integration, PDF reporting
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Placeholder preview image for Thermal Profiling System for Heating Hoses
  • Automated thermocouple traversal along heating hoses up to 25 m long
  • Generated heat-map visualizations from raw measurement data
  • Supported reproducible thermal quality assurance
  • Technologies: C#, thermocouples, servo control, measurement automation
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Placeholder preview image for Automated Test Tool for Heating Response
  • Automated a previously manual heating-response test process
  • Structured the recording of response data for technical evaluation
  • Improved repeatability and reduced manual test effort
  • Technologies: C#, test automation, heating technology
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Placeholder preview image for Modbus Test Software for Controller Parameters
  • Built a specialized tool for reproducible Modbus parameter testing
  • Supported validation of communication behavior after interface development
  • Improved the service- and production-readiness of the Modbus integration
  • Technologies: C#, Modbus, RS485
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Placeholder preview image for Live Demonstration Software for Sensor Systems
  • Auto-detected USB-connected sensor devices with hot-plug support
  • Visualized measured values in real time without manual reconfiguration
  • Ran reliably, unattended, in trade-fair and presentation environments
  • Technologies: C#, USB, real-time visualization
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Placeholder preview image for Profibus Extension for an Industrial Device
  • Designed a hardware extension with RS485-based Profibus conversion
  • Programmed C firmware for reliable fieldbus communication logic
  • Integrated the extension into the device's existing architecture
  • Technologies: Profibus, RS485, C
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Placeholder preview image for Vacuum Sensor from Prototype to Series Production
  • Ran validation experiments supporting EMC and IP certification
  • Sourced PCBs and enclosures suitable for series manufacturing
  • Integrated the product into SAP ERP for repeatable production
  • Technologies: Sensors, PCB, SAP ERP, validation
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Placeholder preview image for Display and HMI Module for a Measurement Device
  • Designed a compact HMI system combining LCD hardware and firmware
  • Built a simple, usable local user interface
  • Integrated the module into the device's existing architecture
  • Technologies: LCD, HMI, firmware, hardware
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Placeholder preview image for MEMS Interface for an Experimental Membrane Sensor
  • Designed an analog interface circuit for an experimental MEMS membrane sensor
  • Worked across company boundaries in a joint sensor-evaluation project
  • Provided a technical foundation for testing a novel sensor concept
  • Technologies: MEMS, analog interfacing, LTspice
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Placeholder preview image for Bluetooth Module for Wireless Device Communication
  • Programmed C firmware to drive a third-party Bluetooth communication module
  • Connected the wireless interface to the device's existing firmware logic
  • Added a new wireless option to an established product
  • Technologies: Bluetooth, C, UART
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Placeholder preview image for Internal CRM System for FSM
  • Built a tailored desktop CRM instead of adopting oversized standard software
  • Modeled contacts, companies, opportunities, and sales status around FSM's workflow
  • Structured acquisition and project tracking for the company
  • Technologies: C++, desktop application development
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Placeholder preview image for Company Website for FSM
  • Structured technical services into a clear, trustworthy presentation
  • Wrote and built content pages on embedded systems, hardware, firmware, and measurement technology
  • Delivered a site usable for both sales and marketing
  • Technologies: Website development, HTML/CSS
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Placeholder preview image for AI-Assisted Apartment Search
  • Combined rule-based filters with LLM-driven semantic text evaluation
  • Surfaced indirectly-stated criteria such as furnishing, minimum tenancy, and suitability
  • Automated a time-consuming manual search and pre-selection process
  • Technologies: Python, LLMs, text analysis, automation
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Placeholder preview image for Smart Home Security with Raspberry Pi
  • Combined camera capture, motion detection, and face recognition on-device
  • Triggered automatic notifications for suspicious events
  • Delivered a practical edge-AI prototype for home security
  • Technologies: Raspberry Pi, camera, on-device AI, motion detection
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