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Make Central locking "chirp" when locking? 

 

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 Post subject: Make Central locking "chirp" when locking?
Posted: Sat Aug 21, 2010 6:21 pm 
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I've pushed the lock button on my EF many a time when returning to my car only for it to lock in front of my eyes, with me going 'oh @#$!'

Anyway, can anyone think of a way to add a 'chirp' so that it is like some car alarms that chirp once or twice when you lock them so i can hear it when I'm walking away from my car?

 

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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sat Aug 21, 2010 7:38 pm 
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surely you could make your own cicuit to tack onto each door, which feed to a speaker? if your feeling paticularly smart im sure it could be linked to the indicators too.
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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sat Aug 21, 2010 10:21 pm 
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phatba wrote:
surely you could make your own cicuit to tack onto each door, which feed to a speaker? if your feeling paticularly smart im sure it could be linked to the indicators too.


I'm sure you could, but i don't know how hence the question!

If the circuit ran off the indicator it would chirp every time i indicated whilst driving which i really don't want.

 

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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sat Aug 21, 2010 10:26 pm 
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dont the indicators flash from factory? one flash unlocked two flashes locked? could be other way around lol..
Did in my el anyway.

 

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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sat Aug 21, 2010 10:42 pm 
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Benny D wrote:
dont the indicators flash from factory? one flash unlocked two flashes locked? could be other way around lol..
Did in my el anyway.

Correct. 2 flash for locked, 1 for unlocked.

 

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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sat Aug 21, 2010 10:49 pm 
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thepistonhead wrote:
I've pushed the lock button on my EF many a time when returning to my car only for it to lock in front of my eyes, with me going 'oh @#$!'

Anyway, can anyone think of a way to add a 'chirp' so that it is like some car alarms that chirp once or twice when you lock them so i can hear it when I'm walking away from my car?

i solved this problem with my car, i take 2 steps away and look at the indicators, then i walk off. :roll:
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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sat Aug 21, 2010 10:56 pm 
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There is a Jaycar kit for a relay switch - take a low current input and then switches a relay

Take the Lock wire for the door motors, and use it to trigger said relay. Use the relay to drive a small peizo siren and you should get a chirp.

Nigel
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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sun Aug 22, 2010 12:23 pm 
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Nigel wrote:
There is a Jaycar kit for a relay switch - take a low current input and then switches a relay

Take the Lock wire for the door motors, and use it to trigger said relay. Use the relay to drive a small peizo siren and you should get a chirp.

Nigel


Sounds perfect, any idea what is it called?

And yes i am aware that it flashes twice on the lock. Not very useful though.

 

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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sun Aug 22, 2010 12:32 pm 
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http://www.jaycar.com.au/productView.as ... rm=KEYWORD
will work

and

http://www.jaycar.com.au/productView.as ... rm=KEYWORD
might....

You may also need a small timer if it pulses too fast to make sure that your siren actually chirped.

Actually the best way to do this would be a PIC based thing - but I havent had anything to do with them for 4 years now.
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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sun Aug 22, 2010 12:57 pm 
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Thanks mate.

Where would it be best to tap into for the trigger? Thinking the actuator of one of the doors..? But then it would chirp once no matter of locking or unlocking, would it not?

 

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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sun Aug 22, 2010 2:41 pm 
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The actuators are 3-wire actuators - they have a common line, and one line for lock, one for unlock.

You can get those wires from a few places. You could try the kick panel (either side of front of car) where the door harnesses are. You could try around the smartlock unit. You wont have to go inside the door though. Id recommend quick-crimps while you test it out. You should also test with a multimeter to make sure you get polarity right etc.
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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sun Aug 22, 2010 3:06 pm 
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heres somting you could probably get to bleep
http://cgi.ebay.com.au/KIT-CAR-ROVER-V8 ... arParts_SM
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 Post subject: Re: Make Central locking "chirp" when locking?
Posted: Sun Aug 22, 2010 4:34 pm 
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i didnt mean to run it off the indicator. i meant feed it to the indicator to make them flash.
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