Subject:
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Re: Hardware Hacking of RCX
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Thu, 19 Jul 2001 10:55:43 GMT
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Viewed:
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4020 times
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In lugnet.robotics.rcx.legos, Roy Wood writes:
> Considering that LegOS talks directly to the hardware, this seems like a
> good place to ask the following questions.
>
>
> I am yet again frustrated at having only three inputs and three outputs
> on my RCX, and am wondering at the possibility of hacking the hardware.
>
> I've started digging through the Hitachi docs and can see that most of
> the inputs are used up, except maybe Port 4 bit 7-- I'm not sure if the
> negative WAIT signal is used or if this is available as an input pin. I
> also wonder if it might be possible to do something with the second set
> of four A/D conversion lines, though I have to look into that further.
> Anyone have comments on either of those?
>
> And yes, I know it's pretty easy to use a few resistors to connect
> multiple contact switches to a single input port.
>
>
> The more interesting prospect is adding an additional motor port. I
> know I'd have to add a motor driver at the very least, but it seems
> possible. The fact that there are two unused bits at 0xF000 makes this
> particularly encouraging. Once again, anyone have any comments on this?
>
>
> Thanks for any feedback....
>
>
> -Roy
Hi,
if want to use more sensors, then you might wanna look at
http://www.informatik.fh-hamburg.de/~lego/
Take a look at "3 Sharps using 1 input", heat up your soldering iron and
have fun.
Olaf Christ
-------------------------------------------------------------------------------
If knowlege is power, how come the more I learn, the more I realize how much
I don't know?
That isn't very empowering.
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Message is in Reply To:
 | | Hardware Hacking of RCX
|
| Considering that LegOS talks directly to the hardware, this seems like a good place to ask the following questions. I am yet again frustrated at having only three inputs and three outputs on my RCX, and am wondering at the possibility of hacking the (...) (25 years ago, 18-Jul-01, to lugnet.robotics.rcx.legos)
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