bike alarm
Printed From: the12volt.com
Forum Name: Motorcycle Electronics
Forum Discription: Installing Stereos, Alarms, Remote Starters, Lights, Garage Door Openers and other electronics on motorcycles.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=122278
Printed Date: May 02, 2025 at 10:53 AM
Topic: bike alarm
Posted By: blackeye_cis
Subject: bike alarm
Date Posted: June 13, 2010 at 4:23 AM
Guys, need help.... simple diagram appreciates.
trying to build a "manual" alarm on my bike. Basically, I need a trigger switch that will activate the horn when the bike is off the main stand and "arm" when its on its main stand. And can only be reset with a hidden reset button.
Thank you all..............
Replies:
Posted By: blackeye_cis
Date Posted: June 13, 2010 at 4:24 AM
Btw, I'm riding Honda ST 1300 07'
Posted By: awdeclipse
Date Posted: June 13, 2010 at 8:28 AM
Does your bike have a factory Main Stand switch? Do you know if its ground or positive?
Last bike wiring schematic I looked at I believe both the main stand switch and clutch switch are in series that connect ground to the starter relay, and the starter button provides the +12v to the other side of the starter relays.
Depending on how the main stand switch is wired you may be able to use it as is to provide a switched ground. If your horn switch is also a ground switch, then you can wire the kick stand switch to your horn circuit so when the kickstand is up it honks the horn.
A hidden "arming switch" is your best bet to arm and disarm the system. You'll have to add a relay to power the horn while the ignition is off also.
Assuming main stand switch is GND:
Switched GND ---------> GND of Horn
Relay Pin 85-> GND
Relay Pin 86-> +12v from arming switch
Relay Pin 87-> Fused +12v
Relay Pin 30-> +12v to horn
Arming Switch:
Pin1 -> Fused +12v
Pin2 -> Relay 86
Summary: With the switch Armed, the relay will provide the horn with +12v and when the bike comes off the stand, the stand switch will provide ground to the horn. Depending how small of a switch you want to use, you could most likely get away with skipping the relay all together.
Posted By: blackeye_cis
Date Posted: June 13, 2010 at 11:06 AM
Thank you for the prompt reply...
It took awhile for me to digest it....Fyi, the main stand is not wired, only the side stand (-). Base on your explanation, is my schematic drawing correct?
https://www.facebook.com/?sk=2361831622#!/photo.php?pid=1109676&o=all&op=1&view=all&subj=125723977438868&aid=-1&id=1056191910
Posted By: awdeclipse
Date Posted: June 15, 2010 at 2:24 AM
Sorry,
I don't use facebook.
Can you post the schematic in the forum for myself and others to check for you?
Posted By: blackeye_cis
Date Posted: June 17, 2010 at 12:10 PM
Hope you can view this...thx
Posted By: blackeye_cis
Date Posted: June 17, 2010 at 12:19 PM
https://www.flickr.com/photos/51246748@N04/4709010393/
Cant seems to upload the image file
Posted By: oldspark
Date Posted: June 17, 2010 at 9:41 PM
Shorten the filename. 8 letters is fine, maybe 10 or so.
Posted By: oldspark
Date Posted: June 17, 2010 at 9:48 PM
IMO that diagram is a silly arrangement - the Main Stand Switch should be grounding the relay's #85.
(If it wasn't for the disarming requirement, based on that diagram I'd omit the relay...)
And of course the +12V is fused...
Posted By: sarfraz
Date Posted: August 30, 2010 at 4:24 AM
I want to install 10mm (diameter) LED ( one or four) for additional light and would like to know the circuit diagram and components.
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pakistanzindabad
Posted By: oldspark
Date Posted: August 30, 2010 at 5:10 AM
For additional light?
What sort of LEDs? What sort of light - warning lights or headlights etc?
For 12V you could might be able to connect 4 LEDs in series without a resistor depending on the LED voltages.
Otherwise connect a resistor in series where the resistance R (Ohms) is V/I where I is the LED current, and V is the voltage you need to drop (say 10-12V for a single 2-4V LED). (Probably a 1/2W resistor.)
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