Subject:
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Re: Barcode Scanner programmed train set-up - thoughts please!!!
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 16 Oct 2000 17:16:33 GMT
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Viewed:
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745 times
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Wessel Burgers wrote:
> Hello everybody!
>
> Some time ago I acquired the Technic Barcode multi-Set. I've used its Barcode
> Scanner to write little programs for my trains and it works pretty good. For
> example I put a touch sensor brick on the track and programmed the Barcode
> Scanner to let my train increase/decrease speed or stop when it touches the
> sensor (for an example of how this works see: http://www.brickshelf.com/cgi-
> bin/gallery.cgi?i=15062). What's also nice is that you can program a 'puff'
> sound which is pretty cool.
>
> The only major drawback is that the Barcode Scanner can only be powered by
> batteries and not by a 9V adapter. I was wondering whether it is possible to
> use the 9V Train Controller for this purpose. However, I'm not a very
> technical person so I was hoping any of you might provide the answer to this.
> The idea I have is as follows:
>
> 1. Cut of one of the contact bricks of a standard 9V wire.
> 2. Strip the wires on the side the contact was cut off.
> 3. Connect them to the battery contacts in the Barcode Scanner.
> 4. Connect the train connecting leads to the track and the other end to the
> output of the Barcode Scanner.
> 5. Connect the other end of the standard 9V wire to the 9V Train Controller.
> 6. Play!
>
> Do you think this could work? Or would it fry my Barcode Scanner? Your
> thoughts would be very much appreciated.
I wouldn't recommend this way. I do not know if the Barcode device can handle
battery 'errors'.
I've just done this for my Scout.
*Warning! I'm assuming the Barcode reader using 9 volts! IF it doesn't use
whatever is rated for it instead!)
Get a 9volt DC 800~1000ma (Right Guys?) power adapter. Make sure it's a good one.
Some cheap ones are WAY off.
Then connect the pos end to the pos battery terminal and the neg. to the neg.
terminal.
That would work.
If you want to be really good do what I did with my Scout.
Create a small circuit using a Relay, diodes and 9volt battery.
Basically when the power pack is connected the barcode is powered by the Pack.
But when the power is off to the pack the relay collapses and the power runs off
the 9volt. I do this with the Scout because if it loses power it loses the
Program. Most annoying...
If you require more detailed instructions and wish to confirm the power needs of
the Bar Code I can give detailed instructions.
Good Luck.
Dean
--
Coin-Op's For Sale!: http://www.akasa.bc.ca/tfm/coin-op.html
Dean's Lego Workshop: http://www.akasa.bc.ca/tfm/lego_wr.html
Vancouver Lego Club: http://www.akasa.bc.ca/vlc
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