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ShippedJan — Apr 2025

BackBuddy

Arduino-integrated posture tracker.

BackBuddy screenshot

01The problem

Poor posture is a huge problem for students and office workers at desks all day. Reminder apps are passive and give no real-time feedback or physical correction. We wanted something that detects bad posture and helps fix it.

02What I built

  1. 01

    Chair attachment

    Arduino-based, fits any chair, uses pressure sensors to detect posture.

  2. 02

    Pressure bladders

    Inflate and deflate to gently correct posture when you slouch.

  3. 03

    Mobile app

    React Native over Bluetooth to track progress, set goals and tune sensitivity.

  4. 04

    Feedback loop

    Learns your sitting patterns and adapts.

03Architecture

Arduino IoT with pressure sensors placed across the chair. Uneven pressure (slouching) triggers targeted bladders that guide you back into alignment.

The app connects through an HC-05 Bluetooth module and stores data in Firebase for cross-device sync and long-term trends.