Subject:
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Re: RCX accessories
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 30 Jul 1999 18:48:33 GMT
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Original-From:
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David Kadansky <davidk@#nomorespam#pobox.com>
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Viewed:
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693 times
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Thumbs up for the remote!
While it's true that you can only send 1/2/3 messages, I've written some
code to combine these into 5-digit (trigit?) sequences.
Because of the possibilty of mis-keying or mis-receiving a sequence,
sequences that end with msg 2 are ignored.
This allows for 162 commands. So far, I still have a few unused ones.
I could post more complete code, but for now, here's a fragment:
// encoding macro - make the compiler do the work!
#define SEQ( a, b, c, d, e ) ( (e-1) * 81 + (d-1) * 27 + (c-1) * 9 + (b-1) *
3 + a - 1 )
#define SEQ_12321 SEQ(1,2,3,2,1)
#define SEQ_31111 SEQ(3,1,1,1,1)
#define SEQ_33111 SEQ(3,3,1,1,1)
task t2
{
while( true )
{
get_seq();
play_seq = seq; // causes echo of received sequence
if( seq == SEQ_33111 )
{
ClearSensor( IN_1 );
}
else if( seq == SEQ_12321 )
{
start rot;
}
else if( seq == SEQ_31111 )
{
sub3();
}
}
}
Marty wrote:
>
> Hi,
> I was thinking about sending away for some extra sensors and maybe
> motors for my RCX and I was wondering what to get. I'm willing to spend
> up to $80 - $100 US.
> I was thinking about two rotation sensors, and a extra motor and maybe
> a remote. Does anyone have any suggestions on the best things to get?
> It just costs so much on postage I thought it would be worth getting
> everything at once (and I have to get myself a credit card- damn).
>
> Thanks, Marty.
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | RCX accessories
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| Hi, I was thinking about sending away for some extra sensors and maybe motors for my RCX and I was wondering what to get. I'm willing to spend up to $80 - $100 US. I was thinking about two rotation sensors, and a extra motor and maybe a remote. Does (...) (25 years ago, 30-Jul-99, to lugnet.robotics)
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