A PERSONAL PORTFOLIO / 2026 ✳ / COLOMBO, SRI LANKA

SYSTEMS
DON'T BUILD
THEMSELVES.

I'M SARITH DODANGODAGE.
I TURN IDEAS INTO THINGS THAT SENSE, THINK & ACT.

01 / 07 THE ENGINEER

03 — SELECT A SYSTEM / PROJECT ARCHIVE 001—008

EIGHT
DIFFERENT
QUESTIONS.

One approach: understand the problem, build the system, improve the result. Choose a project to transform the object in front of you.

SELECT A PROJECT ↘01 / 08

CURRENTLY IN THE WORKSHOP OBSIDIAN / AUTONOMOUS ROBOTICS

04 — STEP INSIDE / PROJECT DOSSIER

OBSIDIAN.

AUTONOMOUS MICROMOUSE / EMBEDDED ROBOTICS

An ESP32-driven autonomous micromouse with motor feedback, distance sensing, custom electronics and a ROS 2 / Webots digital twin.

ESP32ROS 2WEBOTS

[ INTERNAL SYSTEMS EXPOSED ]
DRAG TO ORBIT ↔

06 — OPEN FOR THE NEXT CHALLENGE

LET'S BUILD
SOMETHING
THAT MATTERS.

Internships, engineering opportunities, research, collaborations—or just an interesting idea. The workshop is open.

EMAIL ME ↗LINKEDIN ↗GITHUB ↗RÉSUMÉ ↗

01 / THE ENGINEER

THE PERSON
BEHIND THE SYSTEMS.

SARITH DODANGODAGE

Engineering & IT UndergraduateInstrumentation & Automation|Robotics|Embedded Systems|AI & Software

I'm Sarith Dodangodage, an engineering and information technology undergraduate interested in building intelligent systems that connect hardware, software, and the physical world.

My work spans embedded electronics, robotics, industrial automation, and artificial intelligence. I enjoy taking ideas beyond theory—designing, prototyping, programming, and testing systems that solve practical problems.

VIEW MY RÉSUMÉ ↗

[ JELLYCAST / COASTAL OBSERVATORY ]

THREE OBSERVATION SITES / ONE COAST

ONE COAST.
THREE STATIONS.

Select Negombo, Colombo, or Kalutara to explore all three study locations in one continuous coastal view.

NEGOMBO / COLOMBO / KALUTARA

INTERACTIVE RESEARCH VISUALIZATION · NO LIVE FORECAST DATA

TERRAVITA / INSTRUMENTATION STORY 01 — 03

01 / THE BUILD — A SYSTEM TAKES SHAPE

BUILD IT.
MEASURE IT.

An environmental monitoring instrument takes shape from an enclosure, a preserved PCB, power electronics, sensing, and a display. Every piece has a purpose.

147 × 102 × 75 mmENCLOSURE ENVELOPE

SCROLL TO ASSEMBLE ↓

02 / SENSOR ARCHITECTURE — UNDER THE LID

FOLLOW
THE SIGNAL.

One instrument. Three different measurements. Select a sensing pathway to inspect how the system acquires information.

DS18B20 / DIGITAL THERMOMETER

A waterproof temperature probe tracks compost temperature through a digital sensor interface.

03 / INTERPRETATION — FROM SENSORS TO INFORMATION

DATA YOU
CAN ACT ON.

Read the measurements together, not as disconnected numbers. Change the simulated sample conditions to see the monitor respond.

SIMULATION / INPUT CHANNELS READING

TEMPERATURE 42.6 °C MOISTURE 56 % INDEX GAS SENSOR 1.62 V

DAQ / ESP32-C3SENSOR OUTPUT STREAMDEMONSTRATION DATA

01 — HARDWARE ASSEMBLYSCROLL TO EXPLORE THE INSTRUMENT →

SCHEMATIC INTERACTION · NOT LIVE MEASUREMENTS · MQ-135 IS NOT A SELECTIVE CO₂ / O₂ SENSOR

OBSIDIAN / AUTONOMOUS ROBOTICS01 — 03

01 / THE MACHINE · HARDWARE ASSEMBLY

BUILT TO
FIND A WAY.

Two encoder-driven N20 motors, three distance sensors, a custom electronics stack and a rear caster: a compact robot built to understand an unknown maze.

SUBSYSTEMS ALIGNED00%

ESP32 / C++3× TOF SENSINGDUAL DRIVE

SCROLL TO ASSEMBLE THE ROBOT ↓

02 / DIGITAL TWIN · MAZE EXPLORATION

LEARN THE
LABYRINTH.

Explore unknown corridors, then compare the route with shortest-path replay. The simulated robot follows your scroll position through an illustrative 11 × 11 maze.

MAP11 × 11

STEP000 / 000

CURRENT CELLR01 / C01

SCROLL THROUGH THE ROUTE ↓ ILLUSTRATIVE SIMULATION

03 / UNDER THE HOOD · AUTONOMOUS CONTROL

SENSE.
DECIDE.
MOVE.

The robot's behavior comes from coordinated sensing, feedback and navigation—not from a single clever component. Select a subsystem to examine it.

DISTANCE / THREE VL53L0X SENSORS

Three ToF sensors observe the front and sides. Measurements inform wall detection, mapping and movement decisions.

ILLUSTRATIVE MAZE / NOT A RECORDED COMPETITION RUN · PHYSICAL HARDWARE MODEL IS A VISUAL RECONSTRUCTION

DRAG OBJECT TO ORBIT

A LITTLE
MACHINE.
A BIG
WELCOME.

SYSTEMS
DON'T BUILD
THEMSELVES.

BEFORE
THERE'S A
SYSTEM.

MAKE
IT WORK.

EIGHT
DIFFERENT
QUESTIONS.

OBSIDIAN.

LET'S BUILD
SOMETHING
THAT MATTERS.

THE PERSON
BEHIND THE SYSTEMS.

SARITH DODANGODAGE

EDUCATION & FOUNDATIONS.

University of Colombo

University of Moratuwa

Ananda College

WHAT DRIVES MY WORK

Robotics & Automation

Embedded Systems & Electronics

Artificial Intelligence & Software

Instrumentation & Intelligent Monitoring

WHERE I'M HEADED

ONE COAST.
THREE STATIONS.

BUILD IT.
MEASURE IT.

FOLLOW
THE SIGNAL.

DATA YOU
CAN ACT ON.

BUILT TO
FIND A WAY.

LEARN THE
LABYRINTH.

SENSE.
DECIDE.
MOVE.

A LITTLEMACHINE.A BIGWELCOME.

SYSTEMS DON'T BUILDTHEMSELVES.

EIGHTDIFFERENTQUESTIONS.

OBSIDIAN.

LET'S BUILDSOMETHINGTHAT MATTERS.

A LITTLE
MACHINE.
A BIG
WELCOME.

SYSTEMS
DON'T BUILD
THEMSELVES.

EIGHT
DIFFERENT
QUESTIONS.

LET'S BUILD
SOMETHING
THAT MATTERS.