Hi,
    I know a certified mechanic who once told me that they  used a regular
tun  signal flasher module on 3rd brakelights to flash them for the fleet of
vehicles belonging  to the city and were being maintained at his garage.
    I would like to build this circuit that you described with the Analog
devices surface mount  accelerometer.  My first concern is the vibration of
the Harley setting it off.  Do you think the vibration would be an issue?  I
saw some 20,000mCd LED's on ebay but they wanted 2.99 each.
Regards,
Mike
----- Original Message -----
From: "Mike Kendall" <ke6cvh@the-i.net>
To: "pic microcontroller discussion list" <>
Sent: Friday, August 03, 2001 10:27 PM
Subject: Re: Re: [EE]: Accelerometer brakelight (was Modulating a headlight)


> Hi Jeff,
>     I have not completed the  Harley high intensity LED project yet.  I'd
> sure like to exchange emails with you offline from PIClistserv.  Your
> project seems light years ahead (no pun intended :-)  than mine.  I would
> like to build one similiar for this guy as he uses it as a family/weekend
> cruiser like so many others.  What about the severe vibration, is the
> accelerometer portion immune to this?
> Regards,
> Mike at ke6cvh@the-i.net
>
> ----- Original Message -----
> From: "Jeff DeMaagd" <jeff@DEMAAGD.COM>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Friday, August 03, 2001 7:29 PM
> Subject: Re: [EE]: Accelerometer brakelight (was Modulating a headlight)
>
>
> > ----- Original Message -----
> > From: Short, Evan <eshort@FERRARI.IT>
> > Subject: [EE]: Accelerometer brakelight (was Modulating a headlight)
> >
> >
> > > Ironically, I had already modified my bike to make me more visible
from
> > > behind - I built a brakelight which activates a row of high intensity
> > LEDs -
> > > more LEDs for heavier deceleration. I've always thought that this was
> > > important on a motorbike, as you can be decelerating quite heavily
from
> > > engine braking alone before you touch the brakes. Using an
> accelerometer,
> > > the drivers behind get a warning before your main brake light comes
on.
> I
> > > used a PIC, naturally, a 12C series reading the digital output of an
> > Analog
> > > Devices surface mount accelerometer and controlling the lights.
> > > I'd be interested in knowing if anyone else has done a similar
project.
> >
> > An old classmate of mine built such a similar product, but rather than
> show
> > you the acceleration it flashed.  He didn't say what was involved in
> > designing it.  I haven't heard from him since last December though.
> >
> > Jeff
> >
> > --
> > http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
> >
> >
>

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