Subject:
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Re: Interfacing Sharp's GP2D02 Distance Sensor to the RCX
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 11 Jan 2001 22:11:18 GMT
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Viewed:
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584 times
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In lugnet.robotics, John Barnes writes:
> Unless I am missing something here, the Sharp range of IR distance sensors
> all have power consumptions in the 35mA range, which prohibits their use with
> the RCX unless you resort to using external power packs.
somewhere I read that the lego motors have a power consumptions from 100mA
normal up to 450mA stalled. Am I wrong with this ?
BTW why not use an external power pack if necessary ?
> How do you propose getting around this problem?
>
> JB
>
> > In lugnet.robotics, Ram Meenakshisundaram writes:
> > > Hi,
> > >
> > > Here is a link on how to hook up the GP2D02 to the RCX =
> > > http://www.inchlab.com/gp2d02_interface.htm It seems to be overly =
> > > complicated. Not to put down on Peter's creation as I think it was =
> > > ingenious, but there must be a easier way to do this instead of =
> > > compromising an input & an output port...
> > >
> > > Ram
> >
> > Hi Ram,
> >
> > I don't know an easier way of using GP2D02 but why don't you use the GP2D12
> > instead ?
> > It has an analog output.
> > You don't have to analyze any serial protocol.
> > And as the lego light-sensor has a driven light source, it should be
> > possible to drive this sensor too.
okay, that won't work that easyly.
But if you use a motor port to drive the GP2D12 it may work ?!?
(thanks for your great web site Michael Gasperi !)
> >
> > you can find a datasheet at :
> > http://www.sharp.co.jp/ecg/NewProducts/sensor/gp2d12.pdf
> >
> > Rainer
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