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Dart Board Hack (Help with wiring)

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SirPoonga:
I didn't say it would be simple.  It's actually quite complex and not easy to do.

I was thinking, there are 20 numbers on a dart board with three value areas (two singles that are probably wired as one, a double, a triple) then two contacts for the bullseye. 
That's 63 inputs.  Now assuming it's in a matrix  and 8x8 matric would be perfect.  If you picked up a pci dual parallel port and knew programming you could make an easy interface to it.

Mario:

--- Quote from: Fusion Disaster on April 11, 2005, 01:54:59 pm ---Mario suggested I find a keyboard that uses 10x10 or more and then do a direct connection of the two. Seems to me that if I used an IPAC or Keywiz I would have to wire up all 62 combinations independantly for it to interpret it properly.

--- End quote ---

I was thinking. If only about 62 combinations are really needed, then some of the 10x10 matrix may not be used. You should trace the lines on the mylar sheets and see if some do not route to any of the dart segments. If so, then you may not need all 10 on each side of the matrix, and hence you may be able to find a suitable keyboard.

Mario

Mario:

--- Quote from: SirPoonga on April 11, 2005, 09:19:43 pm ---I didn't say it would be simple.
--- End quote ---

SirPoonga:
I didn't say anything about a keyboard encode.  I said dual parallel port.

A parallel port has 8 data pins.  They can easily be accessed via code.  so with a combination of the two parallel ports you have an 8x8 matrix.

The trick is to get the dartboard to use an 8x8 matrix.  It may not.  You may have to use ingeniuty to convert it to use an 8x8 matrix.

What I sated would be minimum needed.  if your dartboard does have a 10x10 you'd have to convert, modify, whatever is needed to make the idea work.

Mario:

--- Quote from: SirPoonga on April 14, 2005, 01:20:59 pm ---I didn't say anything about a keyboard encode.
--- End quote ---

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