Observed arrival · 2026-09-07
VolAnti Hears the Drone Before You Do
An open-source acoustic detector that identifies drone propellers without relying on radio signals.
Field notes
VolAnti combines four microphones with an ESP32-S3 and a harmonic-comb detector, then exposes detector score, threshold, fundamental frequency, and frame timing in a live simulator. The page documents a 104.2-metre roadside detection and reports 29.4 ms as the worst frame across 1,938 bench-test frames against a 32 ms budget. Its design files include printable enclosure parts, Gerbers, and a bill of materials, while the stated alert behavior deliberately excludes jamming and other countermeasures.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue