无线电沉默时，侦测无人机还能靠什么？ VolAnti转向螺旋桨的谐波梳。四麦克风采集声音，ESP32-S3用FFT、自适应噪声底和连续帧跟踪判断旋翼特征，再用LoRa广播告警而非等待多机共识。参考实现与固件由golden vectors校验，支持面包板到PCB构建；风噪、室内风扇和音乐仍是局限。

VC money will probably be pouring into defensetech for the foreseable future - especially in Europe. Every single country is suddenly forced to reconfigure their armies, to both mitigate and…

VolAnti: Small, cheap, open-source, acoustic radio/fibre-optic drone detection with LoRa radio neighbour alerting 1/2

What if an ESP32-S3 could hear a drone before you could see it? Agam Rossen's VolAnti is an open-source acoustic drone detector built around an ESP32-S3, four MEMS microphones, e-paper display and…