Re: Best pneumatic hexapod yet!

In lugnet.technic, Mark Bellis wrote:
> In lugnet.technic, Paul Kleniewski wrote:
>> hi kevin and steve
>> 
>> it should be the first moc
>> where the rcx would be let's say a slave to pneumatic circuit
>> am i right guys
>> 
>> :D
> 
> Sounds like an ideal application for an RCX input multiplexer:
> <http://www.brickshelf.com/cgi-bin/gallery.cgi?i=1092526>
> 
> You can then have 12 switches on your RCX to measure two positions on each of
> 6 legs.  Using the thermometer setting on the ports, each combination of
> switches is dstinguishable as a different raw sensor value with a margin of
> at least 5 counts, with 16 possible values per port.  You could then plot the
> leg movement on a graph!

This is very much like input multiplexor I created when inventing my first
pneumatic adding machine.  The muxing was needed to create my 16 key keyboard.

http://kclague.net/pneumaddic/index.htm

You can see the resistor ladder network stack to the right of the keyboard.

Also you can see more details, including my potentiometer bricks, in this
brickshelf folder.

http://www.brickshelf.com/cgi-bin/gallery.cgi?f=38104

> 
> Mark

Kevin