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Subject: 
Re: Multiplexing Input Circuit
Newsgroups: 
lugnet.robotics
Date: 
Fri, 13 Nov 1998 00:45:43 GMT
Original-From: 
Ray Kelm <RHK@NEWIMAGE.saynotospamCOM>
Viewed: 
2345 times
  
A simple RC circuit will work for the reset. In your code, make
the first time you turn on power to the sensor delay a little
longer, and the delays between subsequent readings short.

I was discussing this with a co-worker, and the possibilities
of extending it to an arbitrary number of analog inputs. It'd
work best with firmware support to handle the mux control.


Michael Gasperi wrote:

I think Sven thought of this first.  Anyway I threw a circuit together
last night that uses the SetSensorType to switch between 4 inputs. I put
it on a page at:
http://ourworld.compuserve.com/homepages/Michael_Gasperi/mux.htm
It seems to work well, but startup is a problem.  It starts out on input
1 but if you stop the program it can get lost.  I need to add a reset
circuit.  Any suggestions?



Message is in Reply To:
  Multiplexing Input Circuit
 
I think Sven thought of this first. Anyway I threw a circuit together last night that uses the SetSensorType to switch between 4 inputs. I put it on a page at: (URL) seems to work well, but startup is a problem. It starts out on input 1 but if you (...) (26 years ago, 12-Nov-98, to lugnet.robotics)

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