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Subject: 
Re: 3 sensors = 8 inputs?!
Newsgroups: 
lugnet.robotics
Date: 
Thu, 7 Jan 1999 13:55:55 GMT
Viewed: 
1299 times
  
Brett Carver wrote:

Mark Crosbie wrote:
Now, the tricky part is how to build a Lego creation so that
different physical sensors (bumpers, touch switches etc) get
mapped to one of these 8 logical sensor values.

Couldn't you do this by simple wire connections?

The way the inputs work does not allow hooking something up to two inputs at
the same time while still keeping independent use of the inputs.  You would
need to add at least diodes.  I assume you want a pure LEGO solution, but
LEGO doesn't have a diodes.  The non-LEGO mux and expander designs do not
have any problem with multiple hits at the same time.  They decode all
possible states.



Message is in Reply To:
  Re: 3 sensors = 8 inputs?!
 
(...) Couldn't you do this by simple wire connections? Let's pretend you had a LOT of the motor/sensor connector wires: Sensor #1 is connected to input port #1 hit = 1 0 0 Sensor #2 is connected to input port #2 hit = 0 1 0 Sensor #3 is connected to (...) (26 years ago, 7-Jan-99, to lugnet.robotics)

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