| ▲ | reboot81 3 hours ago | |
Wouldn’t a purpose built Esp32 with microphones aimed at the sky do a better job? It would be always on, better directional targeting. | ||
| ▲ | rdtsc 3 hours ago | parent [-] | |
I believe Ukrainians had already deployed such a system. This is specifically designed to use old Android phones already sitting in a drawer somewhere without any other use, and most importantly by anyone without technical skills. | ||