An EARTHQUAKE Alarm With Microcontroller

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dimas_lilik

Joined: 13 Aug 2007
Posts: 53
Location: Indonesia

23 Oct 2009 16:40 An EARTHQUAKE Alarm With Microcontroller

Please I want to make an earthquake alarm signal, a controller with a micro-controller at89s52, anyone can help?
Type of sensor?

betwixt

Joined: 04 Jul 2009
Posts: 388
Helped: 64
Location: Wales, UK

23 Oct 2009 17:03 Re: An EARTHQUAKE Alarm With Microcontroller

Attach two lengths of string to the at89s52.
At the ends of each string tie a tin can.
Fix the at89s52 to a raised object so the cans hand in free space.

When the earthquake strikes, the cans will bang together and sound the alarm.

It is so efficient, it doesn't even need a power supply. Very Happy

Brian.

dimas_lilik

Joined: 13 Aug 2007
Posts: 53
Location: Indonesia

23 Oct 2009 17:28 An EARTHQUAKE Alarm With Microcontroller

What do you mean?

in my country frequent earthquakes

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23 Oct 2009 17:28 Ads

erio

Joined: 26 Feb 2008
Posts: 40
Location: Indonesia

23 Oct 2009 17:40 Re: An EARTHQUAKE Alarm With Microcontroller

hmm...maybe using accelerometer interface with microcontroller. when the ground shaking, the accelerometer is shaking too, and give the signal to microcontroller to sound an alarm for example...

stateofart

Joined: 19 Aug 2009
Posts: 24

26 Oct 2009 7:28 Re: An EARTHQUAKE Alarm With Microcontroller

Maybe you can try this project. May this help.

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sajal1975

Joined: 25 Mar 2005
Posts: 150
Helped: 3

26 Oct 2009 11:14 Re: An EARTHQUAKE Alarm With Microcontroller

MAGNETIC SENSORS ARE USED FOR THE PURPOSE.

rushirajdhar

Joined: 31 Jan 2008
Posts: 13

26 Oct 2009 11:43 An EARTHQUAKE Alarm With Microcontroller

is it going to sense INTENSITY

stateofart

Joined: 19 Aug 2009
Posts: 24

26 Oct 2009 14:06 Re: An EARTHQUAKE Alarm With Microcontroller

Check this website : http://www.discovercircuits.com/H-Corner/quake.htm

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dimas_lilik

Joined: 13 Aug 2007
Posts: 53
Location: Indonesia

26 Oct 2009 15:08 An EARTHQUAKE Alarm With Microcontroller

thank you for replies. But if high noise appears when there are objects that fall around the sensor.
From data sheets "Static acceleration due to gravity can be used to determine tilt and inclination provided that the sensor is responsive to static acceleration"