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Jan 8, 2026

post

Teaching a Foam Wing to See What Radios Hear

Airborne RF Shadow Cartography

A buried irrigation pipe showed up in my heatmap before I knew it existed. The foam wing sees what I can't.

radio programming electronics outdoors engineering

code-a-day

Mapping Radio Shadows with Flood Fill

Flood Fill Algorithm 🔗 Airborne RF Shadow Cartography

When your drone finds a signal dead zone, how do you map the entire shadow? The same algorithm that colours pixels.

algorithmsgraphicsfundamentalsdata-structures

game

🎮 Charting the Invisible Fly a foam wing over terrain to triangulate hidden RF sources. The signal meter reacts as you get closer — drag to fly, tap to drop markers. Minesweeper meets radio direction-finding across 5 rounds of increasing difficulty.