[Coco] Computers and electric trains...
spam_proof at verizon.net
Wed Nov 28 17:37:49 EST 2007
My (7 year old) son just got a real Lionel O gauge train set from his
grandfather for his birthday/early Christmas. I've been waiting 35
years for a real Lionel... Anyhoo, I was wanting to use the computer
for command and control of the set.
I tried getting a relay board for my PC, but I was getting prices for
relay or DAS boards of like $800 - $1600. This is way out of my price
range. I must be looking in the wrong place (I tried Keithley and
The first thing that came to mind after the sticker shock is that the
coco natively has 4 A/D converters (JOYSTK) and a natural relay
(cassette motor). Unfortunately, I need more than one relay. I
suppose the out pin of the serial I/O could be used (in conjunction
with a transistor) to drive a relay, but I'd need more than two.
This sounds like something someone on this list has probably done in
the past. Any insight/advice would be appreciated.
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