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From: Mario Trams
Subject: Re: Lap Counter and Starter Circuits
Date: Thu, 12 Dec 2002 15:28:11 +0100
Organization: TU Chemnitz
NNTP-Posting-Date: 12 Dec 2002 14:28:11 GMT
X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.4.18-10bigmem i686)
> I am building a scalextric race track with my son and would like to add some
> electronic circuits
> to the layout
> I was thinking of a lap counter using two seven segement leds
> The laps would be counter when the car passes under a bridge that has a IR
> diode which is
> shining down on an IR detector. When the beem is broken then counter
> anvances 1
> It should also have a reset switch to set the count back to 0
> Also a starting circuit that would have four or five leds one red, two or
> three yellow and one green.
> When a switch is pressed the leds would light in succession from red to
> green, then turn off.
> If possible the time between the push of the switch and the lighting of the
> leds should be different each time so that the driver does not know the time
> to start the car.
> If it is not to much trouble could this be coupled to IR detector so that if
> the green led is not alight when the beem is broken the the starting leds
> remain on indicating the driver jumped the start.
> This is most probaly faily simple to you guys but I only have a basic
> of electonics
What you describe here appears really to be not very complicated,
but it is probably much more than just a weekend-project for you.
Especially when you write that you only have a basic understanding
Therefore it will be difficult for anybody to provide specific help.
I would suggest you to get more familar with electronics before -
especially in the area of microcontrollers, which seems to be
good applicable in your project.
PS: What about a lap time measurement in your race track?
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