Earthquake Alarm System
Earthquake Alert System
A metal ring mounted on the sensor ADXL335 contains perimeter loose steel spheres and magnifies the weak vibrations of the building creating a more intense shock to the sensor
the vibration of the building will turn on the device and it will sound alarm
the LED will turn red
will also activate wireless receivers alarms in other rooms at frequency 433Mhz
https://www.youtube.com/watch?time_continue=1&v=2_NDtMLdBQY
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