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Unread 06-07-2006, 00:55
Matt H. Matt H. is offline
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Re: Range finding/sensor advice

Quote:
Originally Posted by Josh Siegel
I love my Phidgets interface kits, but each can only handle 8 inputs. I'd be looking at a minimum of 13 inputs at this point, and potentially 21 (12 sonar, 8 IR, 1 potentiometer).
What's out there in my price range? (that'd be 'cheap' )
Rather than buying a whole new interface kit you could try something that my school's theater does with video processing. Using an electronic switching system you could ideally input 16 inputs into eight by rotating out which input is being received at the time. I'm not sure how clear this is sounding so I'll give an example. Inputs one through 4 are wired out to an electronic switching device with 8 outputs. One output is used to control the switching device. You program switches with 4 inputs are being received every 1/X second. so for the first 1/X of a second you will receive data from the first 4 inputs and for the next 1/X of a second you would receive data from the last 4.

I'm not sure how feasible this is for you project, but it's worth a try and I believe it would be cheaper than a whole new interface device. This would also require a fair amount of aditional programming