This five-week project involved creating an intelligent object using Arduino and coding to improve rest timing for weightlifters. Rest Sync is a motion-activated timer that clips onto a backpack, helping lifters maintain more accurate rest periods between sets. The final outcome was a fully functional, 3D-printed prototype integrating hardware, code, and user-centered design.
Topic Exploration
Mood Board
Design Goals
Defining the Objectives of the Project
Clips securely onto backpacks or gym bags
Stays accessible without occupying hands or pockets
One-button operation for fast rest tracking
Readable at a glance during workouts
Usable with sweaty or chalked hands
Encourages consistent rest periods between sets
Reduces reliance on phones timer training
Helps athletes stay focused and in rhythm
Initial Sketches
Final Sketches
First Prototype and Storyboard
Testing scale and size; illustrated story board
First prototype constructed using foam core
Explored overall form, scale, and proportions
Tested backpack compatibility and clip placement
Storyboard illustrated step-by-step user interaction
Demonstrated timer use during a workout
Visualized real gym environment context
Final Model and Prototype
Functional circuit and prototype enabled accurate, reliable timing
Final model refined form, materials, and clip integration
Integrated functional circuit for accurate timing feedback
Final video demonstrated real-world use during workouts
