Follow the Arrow
A live AR compass that points users toward a hidden treasure in real time, rotating with their device heading so the arrow always aims true — no map required.
The Challenge
“Turn toward the treasure, and the arrow turns with you.”
Solution & Architecture
Device heading is read continuously
The compass/magnetometer feeds live heading data as the user moves and turns.
Bearing to treasure is calculated
Using the user's GPS location and the treasure's fixed coordinates, the system calculates the real-time bearing.
Arrow renders in AR space
An on-screen arrow overlays the camera view, rotating smoothly to always point toward the treasure.
Smoothing prevents jitter
Heading data is filtered and smoothed so the arrow doesn't twitch from raw sensor noise.
Arrow updates as the user moves
Every step recalculates the bearing, keeping the arrow accurate throughout the walk.
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