low tone audible beeper

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=116949
Printed Date: May 09, 2024 at 5:55 PM

Topic: low tone audible beeper

Posted By: 87pontiac
Subject: low tone audible beeper
Date Posted: October 14, 2009 at 1:00 AM

Im looking to put in a low tone audible beeper on my car as an accessory to the alarm. What i want is to build or buy a low tone beeper that beeps about every 5 seconds to warn people that there is an alarm on the car. The tone should only loud enough to hear if your standing about 6 to 8 feet from the car.

Any help would be appreciated.

87pontiac

Canada

1995 Eagle Summit ES

Replies:

Posted By: t&t tech
Date Posted: October 14, 2009 at 4:38 PM

Probably not the best idea, You won't like to come back and meet a flat battery now would ya!

Posted By: dualsport
Date Posted: October 18, 2009 at 12:52 AM

You could use a piezo buzzer, but it'd be in the range of 3kHz, not really a low tone. Unless you weren't referring to the pitch.
Very low power draw- you could just connect it across your alarm status LED, since it sounds off from 3V and up.

Posted By: hotwaterwizard
Date Posted: October 22, 2009 at 8:36 AM

Too bad we can't figure out how to use one of those smoke alarms that beep when the battery is low.

Maybe run it off of a seperate 6v battery and break the power from it when the alarm is off with a relay???

They cost what $10 ?

-------------
John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

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