constant to momentary

Printed From: the12volt.com
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=133724
Printed Date: May 21, 2024 at 10:55 PM

Topic: constant to momentary

Posted By: aceforce
Subject: constant to momentary
Date Posted: February 28, 2013 at 2:19 AM

Car= Honda Odyssey 2007 EX-L

Objective= to add a soft audible confirmation using a piezo buzzer when locking and unlocking with FOB keyless entry.

After a week of figuring out i finally found the appropriate set up for this to work using this diagram posted_image

30=parking lights
87A=red wire from piezo buzzer
85=ground black wire from piezo buzzer
86=acc switched power
87=no connection

The only problem is the beep takes to long,it goes beeeeep instead of just beep.After 3 days of reading online for solutions i found these in one of the online forums. posted_image

As a newby to installing mod such as these,will these setup or connection help me achieve a short beep? If yes,i need guidance on where should i connect the wire that has a capacitor and resistor.Any comments or suggestions would be much appreciated.Thank you in advance.

Replies:

Posted By: howie ll
Date Posted: February 28, 2013 at 4:23 AM

Much simpler than above:-
warning_buzzer.bmp
This will give you 0.8 seconds on lock and unlock.
The (1N4004) diodes are absolutely mandatory unless you want to spend time with fuse changing.
Do a bit more research in the relay section i.e. caps, resistors and you can even extend the time on one or both to differentiate.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: aceforce
Date Posted: February 28, 2013 at 7:17 AM

Thank you for the response.wow!! this one looks alot easier. before i try this connection i just want to confirmi if my understanding is correct,all i need on this connection is 2 diodes,and the 2 wires comming from the buzzer am i correct?

Posted By: howie ll
Date Posted: February 28, 2013 at 8:21 AM

Yes.

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: aceforce
Date Posted: February 28, 2013 at 9:06 AM

Thanx,i'll start on this one once the store opens so i can get some diodes.i will be posting result once done.

Posted By: aceforce
Date Posted: March 01, 2013 at 3:49 AM

i've tried your suggestion and it did shorten the chirp a little bit,but it only chirp once each time when pressing lock or unlock.it would have been better if it chirp twice when pressing unlock,which is what my set up is right now,i just wanted the duration of the chirp shorter.any idea on how to do that?

Posted By: howie ll
Date Posted: March 01, 2013 at 4:18 AM

What do your lights do?

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: aceforce
Date Posted: March 01, 2013 at 2:04 PM

my lights blink once when press lock and twice for unlock.

Posted By: howie ll
Date Posted: March 01, 2013 at 2:54 PM

Try this but there are issues if you have the lights on without ignition the buzzer will sound, I know I can't think when I've left mine on when the car was parked.
The negative side of the buzzer therefore goes to either the ignition or maybe better ACC, this will sit on ground when the ignition is turned off, thus completing the circuit.F58_warning_buzzer.bmp

-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Posted By: aceforce
Date Posted: March 01, 2013 at 3:02 PM

ok will try this one.

Posted By: aceforce
Date Posted: March 03, 2013 at 7:49 PM

your setup work and the beeps are slightly shorter than my setup.thank you for your help.A lot simplier connection but works as good.