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 Robotics / RCX / *5009 (-20)
Subject: 
ROM of RCX 2.0?
Newsgroups: 
lugnet.robotics.rcx
Date: 
Thu, 16 Aug 2001 18:39:13 GMT
Viewed: 
1479 times
  
Hi,

has anybody taken a look at the ROM of the RCX 2.0?
Are there any significant changes?
I'm looking in particular for changes in addresses of routines
or data areas that could lead to interoperability problems.

Jürgen

--
Jürgen Stuber <stuber@loria.fr>
http://www.loria.fr/~stuber/


Subject: 
Re: problems with legos on notebook
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Thu, 16 Aug 2001 11:34:17 GMT
Viewed: 
1398 times
  
Michael,

I may not be much help as I only use my laptop for downloading programs, not
development, and my serial port is built-in.

Is there any message when it fails to connect, or not?
Does it fail immediately, or timeout after a wait?
Do firmdl3 & dll fail the same way, or different symptoms?

Try looking in /var/log/messages for any info. Also try logging kernel debug
messages using syslog - a line like:

kern.debug /var/log/kernel.debug

in syslog.conf may give more info (don't forget to killall -HUP syslogd!)

Post the results here, and someone may be able to pick the problem.

HTH

ROSCO

In lugnet.robotics.rcx.legos, Michael Wisse writes:
Hallo!

Has anybody experiences with legos on notebooks?

I want to use legos under linux on a notebook computer. I use a serial
pcmcia card from socket communications. The serial port is configured as
ttyS0 (irq 4 and io-adr. 0x03f8 are configured correct by pcmcia
manager).
The infrared tower is found by firmdl3 or dll, but it does not get a
connection to
the rcx.
(I have the same problems with nqc.)

The basic settings for this serial port seem to be o.k. under linux, I
can control an external modem with this port and connect to an isp.

Only with the legos tools (and nqc) it does not work. Perhaps there are
some special settings to do under linux with setserial for this port?

Thanks for advice and best regards.

Michael Wisse

Hochschule Harz
D-38855 Wernigerode


Subject: 
Re: problems with nqc under linux
Newsgroups: 
lugnet.robotics.rcx.nqc
Date: 
Wed, 15 Aug 2001 22:07:29 GMT
Viewed: 
2402 times
  
Looks like the data is getting garbled.

One guess would be that the port (under Linux) isn't handling odd parity
with 8 data bits correctly.  Is there any way you could connect this to
another computer using a null modem?  Preferably, use another machine/OS
that can reliably communicate with the RCX.  Let's say machine A is your
current one, and B is the second one...

1) type 'nqc -v -raw 10' on B, but don't press <return>
2) type 'nqc -v -raw 10' <return> on A
3) press <return> on B

(the idea is to have B's nqc command run right after A's starts
running).  Do the same test but with starting B just before A.  e-mail
me the log (or post them here) and I'll try to figure out what is wrong.

Dave Baum


Make sure to

In article <3B7A7177.503CF1A5@hs-harz.de>, Michael Wisse
<mwisse@hs-harz.de> wrote:

Hallo!

Has anybody experiences with nqc for linux on notebooks?

I want to use nqc under linux on a notebook computer. I use a serial
pcmcia card from socket communications. The serial port is configured as
ttyS0 (irq 4 and io-adr. 0x03f8 are configured correct by pcmcia
manager).
The infrared tower is found by nqc, but it does not get a connection to
the rcx.

The batteries of rcx and tower are ok, if I use nqc for win32 under
WINDOWS 2000 over this pcmcia serial port, nqc has no problems to find
the rcx.

The basic settings for this serial port seem to be o.k. under linux, I
can control an external modem with this port and connect to an isp.

Only with nqc it does not work. Perhaps there are some special settings
to do under linux with setserial for this port?

Here is the output from nqc under linux (Dave adviced to add this):

micha@spock:~ > nqc -v -raw 10
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 f7 ff
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 f7
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 fe 00 00 07 80 e6
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 e6
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 f7
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
No reply from RCX
micha@spock:~ >

Thanks for advice and best regards.

Michael Wisse
Hochschule Harz
Fachbereich Automatisierung und Informatik
Friedrichstraße 57-59
D-38855 Wernigerode

--
reply to: dbaum at enteract dot com


Subject: 
problems with legos on notebook
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Wed, 15 Aug 2001 13:11:39 GMT
Viewed: 
1464 times
  
Hallo!

Has anybody experiences with legos on notebooks?

I want to use legos under linux on a notebook computer. I use a serial
pcmcia card from socket communications. The serial port is configured as
ttyS0 (irq 4 and io-adr. 0x03f8 are configured correct by pcmcia
manager).
The infrared tower is found by firmdl3 or dll, but it does not get a
connection to
the rcx.
(I have the same problems with nqc.)

The basic settings for this serial port seem to be o.k. under linux, I
can control an external modem with this port and connect to an isp.

Only with the legos tools (and nqc) it does not work. Perhaps there are
some special settings to do under linux with setserial for this port?

Thanks for advice and best regards.

Michael Wisse

Hochschule Harz
D-38855 Wernigerode


Subject: 
problems with nqc under linux
Newsgroups: 
lugnet.robotics.rcx.nqc
Date: 
Wed, 15 Aug 2001 12:56:23 GMT
Viewed: 
2422 times
  
Hallo!

Has anybody experiences with nqc for linux on notebooks?

I want to use nqc under linux on a notebook computer. I use a serial
pcmcia card from socket communications. The serial port is configured as
ttyS0 (irq 4 and io-adr. 0x03f8 are configured correct by pcmcia
manager).
The infrared tower is found by nqc, but it does not get a connection to
the rcx.

The batteries of rcx and tower are ok, if I use nqc for win32 under
WINDOWS 2000 over this pcmcia serial port, nqc has no problems to find
the rcx.

The basic settings for this serial port seem to be o.k. under linux, I
can control an external modem with this port and connect to an isp.

Only with nqc it does not work. Perhaps there are some special settings
to do under linux with setserial for this port?

Here is the output from nqc under linux (Dave adviced to add this):

micha@spock:~ > nqc -v -raw 10
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 f7 ff
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 f7
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 fe 00 00 07 80 e6
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 e6
Tx: 55 ff 00 10 ef 10 ef
Rx: 00 ff 00 00 07 80 f7
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
Tx: 55 ff 00 18 e7 18 e7
Rx: 00 ff 00 18 c6 10 c6
No reply from RCX
micha@spock:~ >

Thanks for advice and best regards.

Michael Wisse
Hochschule Harz
Fachbereich Automatisierung und Informatik
Friedrichstraße 57-59
D-38855 Wernigerode


Subject: 
Re: ir communication
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Tue, 14 Aug 2001 08:40:58 GMT
Reply-To: 
chrisb@[nomorespam]ganzfix.de
Viewed: 
1584 times
  
Johan de Wit wrote:

Yes there is. It is LNP it is availiable for windows or linux. I am
just fiddling with the windows version see:
http://www.geocities.com/winlnp/

Thanks, now i have found that stuff for Linux too. Works great!

Chris
--
Chris Benndorf
chrisb@ganzfix.de
http://www.ganzfix.de
Phone: +49 6356 989333


Subject: 
Re: transfer data failed
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Tue, 14 Aug 2001 12:18:41 GMT
Viewed: 
1552 times
  
yes I did ... :-(

manuel
thanks for the tips, but nothing helps. I tried 0.2.5, I tried the far
and near mode, I changed the lighting conditions -> nothing helped. But I
don't think that I fired up my Brick/Tower because the original Lego
Software under Windows works, even the RcxCC with nqc works ok.

But I will continue trying ...

Did you try using the slow mode option ("-s" for firmdl3) as was
suggested?


Subject: 
not strictly legOS
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Tue, 14 Aug 2001 01:53:42 GMT
Viewed: 
1472 times
  
hi all, im doing a research project over here and in the process i have set
up lnpd and now have continous
communication between my robot and the PC. Now then here is the deal, there
is a teoretical posibility that i will
get more inputs from my sensors than i manage to send out with lnpd. The
sensor inputs are stored in a ring buffer
and i have constructed various functions to deal with buffer overflow and
possible loss of connection, and a few other
unpredictable "happenings". so what i was wondering, does anyone here have
experience with this sort of programming
(remote controlling in an unstable enviroment) and if so, do you have any
books you recomend ?
i have a nice collection of information on this already, but id really like
to hear what you guys have to say

regards
kenneth johansen
kennethj@stud.cs.uit.no


Subject: 
Re: WINLNP QUESTIONS
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 19:44:12 GMT
Viewed: 
1560 times
  
I did some more digging. When I look into the reg I do not find the reg keys
as mentioned on the http://www.geocities.com/winlnp/ page. I dig in the code
and set the com port by hand (directly to com1) and now I have the green
ligth on the IR tower.

However still no messages to the rcx

And idea's ....  anyone?

Johan de Wit


In lugnet.robotics.rcx.legos, Johan de Wit writes:
Dear all,

I have some troubles setting up WinLNP. I am new to RCX (2 months) and legOS
(1 month) and have not much experience with VC6. I want to set up a line of
communication between PC and RCX.

I downloaded everything from http://www.geocities.com/winlnp/ and I managed
to get the source compiled without errors. Now I have a file winLNP.exe and
an example application in VB. I did apply the example provided on the page
mentioned above in the RCX. What should happen? I start winLNP and it starts
without erros. I see it in the taskmanager. But whatever I try with the VB
application RCX does not respond. I also do not see the IR tower become
awake. Furthermore I do not get the registry keys (mentioned on the above
page) in my reg. So i am unable to check com port seting etc.

Any hints?

I use W2000 on a P4 1/7Ghz machine.

I did get LNP working however with the sources of petrovic at
(www.idi.ntnu.no/~petrovic/ir/) many thanks, but i would like to use the
"real thing"

Johan de Wit


Subject: 
(MS)2 Expander Web Site Updated
Newsgroups: 
lugnet.robotics, lugnet.robotics.rcx
Date: 
Mon, 13 Aug 2001 18:59:29 GMT
Viewed: 
584 times
  
I've updated my website with some changes to the building instructions
for the (MS)2 Expander that might make it easier to build.

http://www.akasa.bc.ca/tfm/lego_ms2.html

Dean
--
Dean Husby
LUGNET Member #320
TFM's LEGO Workshop - www.akasa.bc.ca/tfm
The Vancouver LEGO Club - www.akasa.bc.ca/vlc/


Subject: 
Re: ir communication
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 18:11:52 GMT
Viewed: 
1442 times
  
Yes there is. It is LNP it is availiable for windows or linux. I am just
fiddling with the windows version see: http://www.geocities.com/winlnp/

However I did not get it working just fine see also my post just before you

In lugnet.robotics.rcx.legos, Chris Benndorf writes:
Hi,

i am just doing my first steps with legOS and i want to send some
data back to the PC. Is there any kind of software for the PC to read
that data and save or display it?

TIA
Chris


Subject: 
ir communication
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 07:14:42 GMT
Reply-To: 
chrisb@ganzfixAVOIDSPAM.de
Viewed: 
1388 times
  
Hi,

i am just doing my first steps with legOS and i want to send some
data back to the PC. Is there any kind of software for the PC to read
that data and save or display it?

TIA
Chris
--
Chris Benndorf
chrisb@ganzfix.de
http://www.ganzfix.de
Phone: +49 6356 989333


Subject: 
WINLNP QUESTIONS
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 17:34:09 GMT
Viewed: 
1444 times
  
Dear all,

I have some troubles setting up WinLNP. I am new to RCX (2 months) and legOS
(1 month) and have not much experience with VC6. I want to set up a line of
communication between PC and RCX.

I downloaded everything from http://www.geocities.com/winlnp/ and I managed
to get the source compiled without errors. Now I have a file winLNP.exe and
an example application in VB. I did apply the example provided on the page
mentioned above in the RCX. What should happen? I start winLNP and it starts
without erros. I see it in the taskmanager. But whatever I try with the VB
application RCX does not respond. I also do not see the IR tower become
awake. Furthermore I do not get the registry keys (mentioned on the above
page) in my reg. So i am unable to check com port seting etc.

Any hints?

I use W2000 on a P4 1/7Ghz machine.

I did get LNP working however with the sources of petrovic at
(www.idi.ntnu.no/~petrovic/ir/) many thanks, but i would like to use the
"real thing"

Johan de Wit


Subject: 
Re: transfer data failed
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 16:51:53 GMT
Reply-To: 
caggiano@crystal-objects.com/nospam/
Viewed: 
1533 times
  

Manuel Weindorf wrote:

Hi,
thanks for the tips, but nothing helps. I tried 0.2.5, I tried the far and
near mode, I changed the lighting conditions -> nothing helped. But I don't
think that I fired up my Brick/Tower because the original Lego Software
under Windows works, even the RcxCC with nqc works ok.

But I will continue trying ...

Manuel

One other thing, did you erase the firmware from the RCX before trying
to load legOS?

regards

Frank Caggiano "The best education for the best
caggiano@crystal-objects.com is the best education for all."
http://www.crystal-objects.com/    Robert M. Hutchins

Logo Users Ring
http://www.crystal-objects.com/logo/logoring.html


Subject: 
Re: transfer data failed
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 15:54:58 GMT
Reply-To: 
CAGGIANO@CRYSTAL-stopspammersOBJECTS.COM
Viewed: 
1435 times
  
Manuel Weindorf wrote:

Hi,
thanks for the tips, but nothing helps. I tried 0.2.5, I tried the far and
near mode, I changed the lighting conditions -> nothing helped. But I don't
think that I fired up my Brick/Tower because the original Lego Software
under Windows works, even the RcxCC with nqc works ok.

But I will continue trying ...

Manuel

Did you try slow?
--
Frank Caggiano "The best education for the best
caggiano@crystal-objects.com is the best education for all."
http://www.crystal-objects.com/    Robert M. Hutchins

Logo Users Ring
http://www.crystal-objects.com/logo/logoring.html


Subject: 
Re: transfer data failed
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 16:04:18 GMT
Viewed: 
1417 times
  
On Mon, 13 Aug 2001, Manuel Weindorf wrote:

thanks for the tips, but nothing helps. I tried 0.2.5, I tried the far and
near mode, I changed the lighting conditions -> nothing helped. But I don't
think that I fired up my Brick/Tower because the original Lego Software
under Windows works, even the RcxCC with nqc works ok.

But I will continue trying ...

Did you try using the slow mode option ("-s" for firmdl3) as was
suggested?

--
"From now on, we live in a world where man has walked on the moon.
And it's not a miracle, we just decided to go." -- Jim Lovell

Mike Ash - <http://www.mikeash.com/>, <mailto:mail@mikeash.com>


Subject: 
Re: transfer data failed
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Mon, 13 Aug 2001 12:31:36 GMT
Viewed: 
1458 times
  
Hi,
thanks for the tips, but nothing helps. I tried 0.2.5, I tried the far and
near mode, I changed the lighting conditions -> nothing helped. But I don't
think that I fired up my Brick/Tower because the original Lego Software
under Windows works, even the RcxCC with nqc works ok.

But I will continue trying ...

Manuel


Subject: 
Re: As promised - Mecha using RCX with MacNQC - Draft 1.
Newsgroups: 
lugnet.build.mecha, lugnet.loc.au, lugnet.robotics.rcx
Date: 
Sat, 11 Aug 2001 11:32:16 GMT
Viewed: 
1365 times
  
I think you're off to a good start! You mention some problems that I think can
be overcome, others I'm not sure about... but I'll offer my two cents anyway...

Edward Cox wrote:

http://www.brickshelf.com/cgi-bin/gallery.cgi?m=brickfield

At this stage it is:
a) too heavy (strain on single motor)
b) too weak (falls apart from shaking motion)
c) not agile (only operates on flat surface)
d) top too heavy - micro motor is under strain to turn/rotate upper body due
to weight and weakness of single point holding it up.


a) what's your gear reduction ratio? I see a worm gear in there, which is about
the only way to get massive amounts of power in a small space from the
minimotor. Maybe you just need to add one or two more gears into your
drivetrain.

b) I'm sure Eric S. would agree that the only effective way to prevent this is
by cross-bracing your model. Eric Brok's excellent site (where I first saw how
to do this) seems to no longer be in existence, but Dave Baum's first book says
how... darn, I can't find a good link anywhere! But it's easy to do, and your
model WILL NOT FALL APART!

c) check out:
http://www.bea.hi-ho.ne.jp/meeco/biped/bipede.html
this thing could navigate _some_ goegraphy

d) again, gear reduction is the answer I think.


Also, see:
http://www.geocities.com/technicpuppy/hhead/hhindex.html
and
http://www.isogawastudio.co.jp/legostudio/modelgallery_model/a018.html

for more bi-ped ideas.

Keep it up!

stuart


Subject: 
Re: As promised - Mecha using RCX with MacNQC - Draft 1.
Newsgroups: 
lugnet.build.mecha, lugnet.loc.au, lugnet.robotics.rcx
Date: 
Sat, 11 Aug 2001 08:35:16 GMT
Viewed: 
689 times
  
In lugnet.build.mecha, Edward Cox writes:
Hi, well some weeks ago I promised that I'd begin a project of developing a
Mech incorporating the RCX unit, some motors and sensors.

Here is my very first attempt at a minifig scale Mech:

http://www.brickshelf.com/cgi-bin/gallery.cgi?m=brickfield


I like the design, but as with most RCX-based walkers, it looks, well, 'clunky'.
I realize this can't be helped considering the nature of what it is you are
working with. I, too, have been working on a walker of this nature and have met
with NO success so far. Either it looks too clunk or it just won't move.

The RCX is programmed using MacNQC and at this stage only utilises one motor
for the motion (non COG [centre of gravity]), one Micro Motor to rotate the
upper body (head), and two lights at front for effect only.

The actual bi-ped mechanism is based on that designed by Joe Nagata (Thanks
Joe!) in his Idea book.

At this stage it is:
a) too heavy (strain on single motor)
b) too weak (falls apart from shaking motion)
c) not agile (only operates on flat surface)
d) top too heavy - micro motor is under strain to turn/rotate upper body due
to weight and weakness of single point holding it up.

all of these seem to be a common problem. d is particularly annoying when trying
to create something that looks good. So far I haven't found a solution. Weight
is more of a factor than in most models, but trying to get the model to move
under it's own power while looking good may be too much to ask for given how big
RCXs are.

The shaking motion might be solved in an unusual way: by using non-ABS materials
such as corrugated tubing, rubberbands, etc. These can help diffuse the shaking
motion a bit. I wish I could find the link for the biped walker that solved the
shaking problem by wrapping the feet with rubberbands, but alas, I can not.


but Hey! it works.

Congrats! That's better than I've accomplished thus far.

What to do next?

a) add touch sensors
b) add light sensor to upper body (head).
c) add sound generator unit.
d) perhaps utilise pneumatics?

So, what do you think? Suggestions, criticisms?

Good ideas for future revision. I wish you much luck in this project.

I know it's early days yet - but if there's anyone at LEGO that see's this
and wants to offer me a job just drop me a line :-) (doesn't hurt to ask!)

Kind Regards,

Ed Cox.
ecox@bigpond.net.au


-Dave Johann
LUGNET Member #524
Founding Member: LUGOLA

HardCore's Haven
http://members.home.net/legomecha/index.html

Beyond Bionicle: Lego Mecha Creations
http://clubs.yahoo.com/clubs/legomechaforum


Subject: 
As promised - Mecha using RCX with MacNQC - Draft 1.
Newsgroups: 
lugnet.build.mecha, lugnet.loc.au, lugnet.robotics.rcx
Date: 
Sat, 11 Aug 2001 01:09:50 GMT
Viewed: 
651 times
  
Hi, well some weeks ago I promised that I'd begin a project of developing a
Mech incorporating the RCX unit, some motors and sensors.

Here is my very first attempt at a minifig scale Mech:

http://www.brickshelf.com/cgi-bin/gallery.cgi?m=brickfield

The RCX is programmed using MacNQC and at this stage only utilises one motor
for the motion (non COG [centre of gravity]), one Micro Motor to rotate the
upper body (head), and two lights at front for effect only.

The actual bi-ped mechanism is based on that designed by Joe Nagata (Thanks
Joe!) in his Idea book.

At this stage it is:
a) too heavy (strain on single motor)
b) too weak (falls apart from shaking motion)
c) not agile (only operates on flat surface)
d) top too heavy - micro motor is under strain to turn/rotate upper body due
to weight and weakness of single point holding it up.

but Hey! it works.

What to do next?

a) add touch sensors
b) add light sensor to upper body (head).
c) add sound generator unit.
d) perhaps utilise pneumatics?

So, what do you think? Suggestions, criticisms?

I know it's early days yet - but if there's anyone at LEGO that see's this
and wants to offer me a job just drop me a line :-) (doesn't hurt to ask!)

Kind Regards,

Ed Cox.
ecox@bigpond.net.au



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