Subject:
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Re: direct manipulation of bits in RCX registers using NQC
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Tue, 13 Sep 2005 19:14:20 GMT
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Reply-To:
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orionrobots@gmail.*ihatespam*com
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Viewed:
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12010 times
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On 13/09/05, Steve Hassenplug <Steve@teamhassenplug.org> wrote:
> On Tue, September 13, 2005 1:28 am, Matt Jones wrote:
> Matt,
>
> There are a few ways you can program your RCX. The main choice is if you use
> the
> standard firmware, or not. The firmware is pretty much like Windows Operating
> System. If you use NQC & the standard firmware, you don't need to worry about
> many
> of the low level things, like setting bits to port 6. You just set the port
> to
> "passive".
>
> Another option is to use BrickOS, which is a "C" based language, and is more
> like
> writing your own operating system. With this, you do have access to the
> hardware at
> the bit level. That may be the C code you're looking at.
>
> > > You can configure the input port that the light sensor is connected to
> > > as a
> > > "passive" sensor (so it's unpowered) but read it out as a raw value (or
> > > even a
> > > percent, just like a "real" light sensor):
> >
> >
> > I've tried this already, and as you say, it works, but the sensitivity goes
> > waay
> > down.
>
> Unfortunately, this is pretty much your only option. There is no way to power
> the
> sensor, but switch the light off. That's all part of the sensor, and the
> sensor
> does not have that ability.
>
> Steve
I agree with Steve that the code samples you posted are probably BrickOS.
Now to acheive what you want, it might be a waste of power, but you
could always blank off the light itself with a peice of black card or
thin black packing plastic. If trying to stick to an all lego
solution, maybe using a technic 2x1 beam in front of the sensor will
blank off the lamp?
Danny
--
http://orionrobots.co.uk - Build Robots
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