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Subject: 
Re: Re[2]: IR Collision avoidance
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Mon, 3 Mar 1997 16:04:28 GMT
Original-From: 
Chris Moore <cmoore@cancun.rose!saynotospam!.hp.com>
Viewed: 
4009 times
  
On Mar 3,  2:12am, Richard Whitehead wrote:

>  Why is everyone using a digital device to try to detect the (analogue)
>  distance to an object?  Especially one with AGC, it makes no sense!

Richard,

In my case there are two reasons.  First, I'm not trying to find the
actual distance.  I just want to know if there is something within a
particular range.  I don't care if it's an inch away or a foot.
The second reason is that I can get a cheap, easy to use sensor from
Radio Shack.  If someone makes a single device with a single analog output
for less than $5 I'd grab it!

Chris



Message is in Reply To:
  Re[2]: IR Collision avoidance
 
Bill, Why is everyone using a digital device to try to detect the (analogue) distance to an object? Especially one with AGC, it makes no sense! I modulated the IR at 10KHz (high enough to be away from mains light flicker, but out of the way of the (...) (30 years ago, 3-Mar-97, to lugnet.robotics.handyboard)

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