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[DPRG] Contests at the Science Place

Subject: [DPRG] Contests at the Science Place
From: Ralph Tenny rten at metronet.com
Date: Mon Feb 4 19:04:41 CST 2002

It is easy to detect when the front of the robot crosses the line; not 
easy to detect when the back end crosses!
Ralph

On Mon, 4 Feb 2002, R. Bickle wrote:

> Hey all,
> 
> I have some circuit boards I designed for an electronic fuel dispenser that
> have a large LCD display on them. I was thinking of reprogramming one of
> these and donating it to the DPRG for an electronic timer for events like
> the quick trip. The only hangup is that I'm not sure what the best way would
> be to detect the robot passing the start and finish lines. if anyone has a
> suggestion, or wants to offer some help, please let me know.
> 
> I was thinking about a laser or light beam, but the rules state that at the
> finish, the entire robot must be over the line, so it would be necessary to
> have multiple beams at different heights to sense the finish.
> 
> Rick Bickle
> 
> 
> -----Original Message-----
> From: dprglist-admin at dprg.org [mailto:dprglist-admin at dprg.org]On Behalf
> Of Rodent
> Sent: Saturday, February 02, 2002 1:09 PM
> To: dprglist at dprg.org
> Subject: Re: [DPRG] Contests at the Science Place
> 
> 
> A piece of string?
> 
> The issue is that to be totally fair, both robots would have to start at
> exactly the same time. This means either having a timer capable of detecting
> an early start, or having remote start on both robots that can be triggered
> by one source.
> 
> I think we need to get with Randy and figure out how to use the horse timer
> he had so we don't have to rely on the judge's reaction time.
> 
> ----- Original Message -----
> 
> > If we are going to have drag races, can someone make the extra board
> > we would need to separate the lanes?  We can discuss this in more detail
> at
> > the meeting next Sat, and at RPL.
> 
> 
> 
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