Kasun Pathirage

Ph.D. Candidate in Electrical & Computer Engineering at UMD

Hardware Engineering • 3D Design • Hardware-Software Co-Design • Power Electronics • Mechatronics Integration

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Check out my YouTube channel: DumbledoresNavy

Engineering Projects

Dell Server Power Supply D1100E-S0 (DPS-1100BB) Reverse Engineering video series thumbnail▶ Video series
May 2026

Reverse-Engineering a Server PSU: Fixed 12.2V to Variable Output

Delta/Dell DPS-1100BB Server Power Supply Unit | dsPIC33FJ64GS606 | PCB Analog Electronics Hack

Reverse-engineered a 12.2 Volt, 90 Ampere (~1100 Watt) server power supply unit with no datasheet, and modified its feedback loop to convert a fixed 12.2V output into a variable voltage supply.

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The 2003 Mitsubishi Lancer with its headlights on and an ALEXA plate, started by voice▶ Video series
March 2026

“Alexa, Start My Car”: Voice-Controlled Remote Start on a 2003 Lancer

NodeMCU (ESP8266) | Key Fob Code Injection | Amazon Alexa | Sinric Pro IoT Cloud | OAuth 2.0

Voice remote start, lock/unlock and trunk release for a 2003 Lancer. A NodeMCU injects key fob codes into a hacked Banvie 1 module, bridged to Alexa through the Sinric Pro IoT cloud.

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Reverse Engineering the Banvie 1 Car Remote Start and Keyless Entry System video series thumbnail▶ Video series
March 2026

Reverse-Engineering the Banvie 1 Remote Start & Keyless Entry Unit

RF Protocol Sniffing | ULN2003G | Holtek/ChipOn MCUs | Oscilloscope Data Analysis - Python

Reverse-engineered a BANVIE 1 aftermarket remote-start/keyless entry unit down to its two onboard microcontrollers, and decoded its key fob's RF protocol bit-by-bit by analyzing oscilloscope data in Python.

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The printed two-anchor servo bracket installed on the AC actuator in the car.
February 2023

Fixing the Unfixable: Motorizing a Lancer's HVAC Blend Door

SolidWorks | 3D Printing (FDM) | Soldering | DRV8833 Motor Driver | Closed-Loop Servo Control

Reverse-engineered a 2003 Lancer's HVAC actuator after its knob kept snapping from a stiffened linkage. 3D-printed a servo bracket and coupler to bypass it, then motorized the knob to track the blend door's position.

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Placeholder image (temporary) for Rapid Prototyping
September 2024

Rapid Prototyping: Automated Window Blind

Custom Circuitry | 3D Printing | Amazon Alexa API | Sinric Pro API

Automated a manual 80" window blind in under 48 hours, driven by a salvaged car windshield wiper motor with custom circuitry, Alexa integration, 3D printed linkages, and custom end-stops.

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CAD render of the custom 3D-printed structure housing the relocated climate-control assembly and double-DIN radio bay.
May 2023

Double-DIN Radio Conversion & Servo-Driven Climate Control

SolidWorks | 3D Printing (FDM) | Mechatronic Redesign | Servo & Potentiometer Control

Designed and 3D-printed a modular structure in SolidWorks to relocate the climate-control assembly for a double-DIN head unit, also converting the temperature knob to servo control (same fix as the HVAC project).

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USB-A side profile of the reassembled MateBook X Pro, with the 3D-printed side enclosure attached.
January 2022

Overclocking a 2018 MateBook X Pro with a DIY Heatsink Mod

SolidWorks | 3D Printing | ThrottleStop | Thermal Interface Engineering

Fixed a laptop throttling under 1 GHz with a repurposed audio-amplifier heatsink, a 3D-printed mounting frame, and a stronger fan, then used ThrottleStop and an undervolt to sustain 4.0 GHz at 85°C.

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Teaching Experience

Guest Lecturer, BM3110: Electronic Instrumentation Fall 2026

Dept. of Biomedical Engineering | University of Moratuwa, Sri Lanka | Semester 5 Undergraduates

Delivered a series of lectures on electronic instrumentation to third-year Biomedical Engineering undergraduates, covering the analog and digital building blocks used in medical measurement systems. Slides for each lecture are linked below.

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Contact & Links

Let's Build Something

I am actively seeking roles in hardware engineering and robotics integration.

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