the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

how to shorten negative pulse to horn?


Post ReplyPost New Topic
< Prev Topic Next Topic >
hang122660 
Member - Posts: 3
Member spacespace
Joined: July 26, 2009
Posted: July 26, 2009 at 8:05 PM / IP Logged  

I have hooked the negative door lock and unlock wires of my alarm to the negative wire from the horn button. I would like to shorten this pulse to about 1/2 second from about 2 seconds.  Two seconds is to long to honk the horn.

And should I add any diodes to this setup? 

hang122660 
Member - Posts: 3
Member spacespace
Joined: July 26, 2009
Posted: July 26, 2009 at 8:17 PM / IP Logged  

Forgot to add.

I do not have power door locks. The door lock/unlock pulse is only being used to sound the car horn. 

yimke 
Copper - Posts: 417
Copper spacespace
Joined: June 23, 2009
Location: Nebraska, United States
Posted: July 26, 2009 at 8:22 PM / IP Logged  
Don't you have a horn output wire?
KarTuneMan 
Platinum - Posts: 7,056
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: December 14, 2004
Location: Isle Of Man
Posted: July 26, 2009 at 9:12 PM / IP Logged  
PLEASE..... try one more time?
hang122660 
Member - Posts: 3
Member spacespace
Joined: July 26, 2009
Posted: July 27, 2009 at 1:40 PM / IP Logged  

Don't you have a horn output wire?

No, that is why I have it hooked up this way. The alarm system I got is what I guess you would call a passive system.

It is a Bulldog KE150 I got at Goodwill for $10.00. 

Chris Luongo 
Platinum - Posts: 3,746
Platinum spaceThis member consistently provides reliable informationspace
Joined: May 21, 2002
Location: Massachusetts, United States
Posted: July 28, 2009 at 9:21 AM / IP Logged  
I've never used one before, but search for the PAC TR-7.
It's a little timer module with all kinds of cool inputs and outputs and timing adjustments......but I'm not sure if it has a timing selection short enough for your needs.
Just to give you an idea, the Audiovox remote starters I use have a selection for the horn timing, and I think the options are:
10ms, 16ms, 30ms, 40ms, 50ms.    
The 16 (default) makes the same kind of honking like most factory keyless systems. The 10 is so quiet you can't hear it very well on a busy street. The 50 isn't objectionable, but is a little too loud for my tastes.
So at least there you have some idea of what kind of timing you need.
OmarR 
Copper - Posts: 162
Copper spacespace
Joined: April 02, 2003
Location: Indiana, United States
Posted: July 28, 2009 at 8:21 PM / IP Logged  

Along with Chris' suggestion, another popular one is the DEI 528t.

The input can be a neg or positive pulse, and the output can be anywhere between 1-90 seconds. In reality, if you turn the potentiometer all the way to it's lowest setting, i think you can output like .5 seconds.

They usually average $15 on ebay.


Sorry, you can NOT post a reply.
This topic is closed.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Thursday, March 28, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer