Subject:
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Re: 4.5V? 9V? 12V?
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 11 Aug 2004 16:45:12 GMT
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Viewed:
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4163 times
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In lugnet.technic, Joe Strout wrote:
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In lugnet.technic, Jordan Bradford wrote:
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Buy one of these
and have at it! (It’s 9V, like all new TECHNIC models.)
Or get
this kit (you get
extra parts).
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I said simple electronics! If I had the time and money for a Mindstorms
set, I wouldn’t be asking the question. :)
Anyway, it seems rather overkill to buy an entire robotics kit when I just
want to be able to turn on a (Minifig-scale) porch light from the other side
of the layout. Is there really no easier way to do it?
(I do appreciate the info from both respondents that LEGO seems to have
settled on 9V circuitry. I’ll focus my search there.)
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Isn’t this just a case of a 9V Battery box with 6x AA batteries, a number of 9V
wires with 2x2 plugs on each end and a 9V light unit? For a shorter duration
use, the smaller battery box with a PP3 battery will do - any light and sound
sets on brickink have a battery box and lights in one set, so you need only add
a wire for the distance. Both types of battery box have an integral switch.
If you want to do some kind of automatic switching, the cheaper alternative to a
Mindstorms kit is to chop one of the leads in half, bare the ends and solder
each to a piece of veroboard. Put whatever you like on the veroboard - relays
or transistors can drive the light.
Alternatively, as I have done, make some 9V to 12V plug converter leads and use
1/0.6 bell wire shoved in the ends of the 12V plugs. Distance is no limit then
as bell wire costs <$5/100m. Use the solid single core wire though. I use this
scheme on my railway, connecting the feed wire to the track and a converter lead
to that, with 12V wires back to the power supply. I used it because 12V plugs
are easier to integrate with normal wires.
Mark
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Message is in Reply To:
 | | Re: 4.5V? 9V? 12V?
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| (...) I said simple electronics! If I had the time and money for a Mindstorms set, I wouldn't be asking the question. :) Anyway, it seems rather overkill to buy an entire robotics kit when I just want to be able to turn on a (Minifig-scale) porch (...) (20 years ago, 10-Aug-04, to lugnet.technic, FTX)
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