2 ms·
Anyone used this and have a guess as to what's involved -- Bluetooth Low Energy? Geofencing? Ad-hoc/rendezvous over wifi? Ultrasonic acoustics?
by gojomo 13y ago
Anyone used this and have a guess as to what's involved -- Bluetooth Low Energy? Geofencing? Ad-hoc/rendezvous over wifi? Ultrasonic acoustics?