Drink Sync — Hydration Tracker

ECE Capstone · Rutgers University · Sep 2024 – May 2025 · Arduino, BLE, Kotlin

GitHub Repository IEEE Published Paper Read Paper (PDF)

Overview

DrinkSync is a sustainable, universally compatible hydration tracking system that turns any reusable bottle into a smart IoT device. Built around an Arduino Nano, an HX711 load cell amplifier, and an MPU6050 motion sensor, it tracks water intake with sub-gram precision and streams that data over BLE to an Android companion app for real-time visualization, reminders, and gamified goal tracking. The project was co-authored and presented as a peer-reviewed IEEE paper.

My Role

I led the embedded systems side of the project: programming the microcontroller to process real-time sensor data and calculate fluid consumption, and engineering the hardware (Arduino Nano, HX711 load cells, MPU6050 IMU) that measures water intake and user activity. I also managed the project through its full development lifecycle, from concept to functional prototype, and built the Kotlin Android app with BLE streaming, real-time data visualization, and gamified goal tracking.

Tech Stack

Arduino Nano HX711 Load Cell Amplifier MPU6050 IMU BLE (HC-05) Kotlin / Android 3D-Printed Enclosure

Gallery

CAD rendering of the DrinkSync smart coaster chassis with internal electronics — CAD model of the enclosure and internal electronics layout.

Presenting the DrinkSync capstone project at Rutgers — Presenting the project as part of the ECE capstone.

DrinkSync Android app screens: hydration tracking, achievements, settings, and notifications — Companion Android app — live tracking, achievements, and reminders.