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Unlike conventional systems that use dedicated, expensive seismic instruments, Google's Android Earthquake Alerts system leverages the sheer scale of smartphones, which continuously collect motion ...
How it works is simple: you can track devices using Bluetooth on the ESP32, and through a combination of presence and signal strength, you can define a sensor that changes to an "on" state when your ...
A worldwide Android smartphone-based earthquake detection and early warning system can detect seismic activity in real time.
If you're in an earthquake-prone area and own an Android phone, it could save your life. It may even have already done so.