Subject:
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Simple RC Throttle for LDCC
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Newsgroups:
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lugnet.trains
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Date:
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Tue, 13 Apr 2004 05:32:53 GMT
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Viewed:
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1349 times
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Having recently acquired the 8376 Hot Flame RC Car...
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8376 Hot Flame
244 elements, 0 figures, US$80, 2003
LEGO > Racers > {RC}
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...it didn’t take too long before I got to thinking about how this bit of
gadgetry might be useful in the train environment. :-)
So, here’s the idea:
Yep, that’s a micromotor driving an RCX rotation sensor. The rotation sensor is
hooked to the RCX running LDCC (which has been configured to use the rotation
sensor as a throttle). The micromotor is hooked to the RC receiver’s motor
output. The whole thing looks like this:
Apart from being a bit noisy when changing the locomotive speed, it actually
works surprisingly well. To get the throttle to respond faster, I configured
LDCC to use 16 steps (or one full turn) of the rotation sensor for full throttle
(instead of the default 32 steps).
The next thing to do is hook a couple of touch sensors to the left/right
steering output so that additional functions like emergency stop and the loco
headlight can be controlled with the RC remote’s steering lever.
And after that, with some modification to the LDCC firmware, it should be
possible eliminate the micromotor and rotation sensor and go “solid state” by
hooking the RC receiver’s output to a sensor port using some creative
combination of lamp bricks and touch sensors to condition the signal coming from
the RC receiver.
BTW, I just posted about a great clearance on the 8376
here.
Cheers,
Mark
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Message has 1 Reply:
 | | Simple RC Throttle
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| Just another thought or two... I tried running a non-DCC locomotive (i.e. one with a regular train motor :-) by hooking the RC receiver's output directly to the track. You get 3 speeds forward and reverse: real slow, medium, and full speed. No doubt (...) (20 years ago, 13-Apr-04, to lugnet.trains, FTX)
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