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November 2008

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Subject:
From:
Tracy Reed <[log in to unmask]>
Reply To:
Date:
Sun, 30 Nov 2008 09:25:31 EST
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Larry,
 
Scroll the screen until you find the "view" window.  Select and scroll  over 
to the gears window, one will have a "R" and one will have a "D" in the  
bottom corner.  Select the window with "D" and then a window with port, A,  B or C 
will come up, select the port you wish to program, (for us A is an  arm and B 
and C are controlling the wheels).  Once you select  your port you will 
manually push your robot to the desired distance /  location.  The degrees will come 
up on the window and you can key that into  your move block.      If you 
select "R" it will  give you the # of Rotations needed and if you select "D" it 
will give you the  degrees needed.  We have found the degrees to be more 
accurate than the  Rotations.  Be sure when programming the move block to key in  
"Degrees".  We are still experimenting with this on curve turns and it has  not 
been as accurate.  It has worked well with turns, our arm and straight  shots.  
If you are traveling backwards the degrees will show on the screen  as " - 
720 "  you do not key in the "-" just choose the backwards  arrow on your block.
 
I do hope I explained this clearly.  We are still playing with  this new 
discovery.  If I am missing information or someone can   add to this I would be 
grateful.  I do know it has made our  programming go much faster.  One of our 
team members received the "Lego  Mindstorms NXT Idea Book" and it is awesome.  
The kids cannot wait until  the off season to plow through these projects.  
 
Note on the move block issue.  David thank you I have ordered the  upgrade 
and we are experimenting with putting some of our written  programs into a My b
lock to save space, is this correct?  One student had a  question, Could each 
mission be programmed and be put into a "My Block",  and then put each "My 
Block" into one program?  They are working  on ways to not have to spend time at 
the table scrolling through the brick to  find each mission file.  Even when 
the missions are downloaded to the brick  in order of their runs they still have 
to scroll to find them.
 
Thank you,
Tracy  
 
unIn a message dated 11/29/2008 6:40:41 P.M. Eastern Standard Time,  
[log in to unmask] writes:
 
 
Tracy, 
We  noted your phrase, “they have learned how to access the view  window and 
push the robot manually to it's desired stopping point  and then key in the 
degrees on the move block.”  How do you do  that? 
 
Thank  you, 
Larry  Sides 
Madison  Menagerie Robotics
 
  
____________________________________
 
From: First  Lego League Discussion [mailto:[log in to unmask]] On 
Behalf Of Tracy Reed
Sent: Wednesday, November 26, 2008  4:34 PM
To:  [log in to unmask]
Subject: Re: [VADCFLL-L] Limit to move  Blocks
 
David,  
 

 
We started up the  NXT ( we have version 1.0) fresh today, after a good rest. 
and everything  worked fine, it took the block plus several more!  We did 
discuss  one common factor, this seems to happen after the robot has been in use 
for  maybe 2 or so hours with LOTS of programming or changes to a program.   
Any thoughts?  
 
The blocks are no  longer on the program for me to attatch, the student took 
them off when he  could not get them to work.  I did look at them and they 
were simple move  blocks, ports b and c, 75 % power, 2 rotations, brake.  The 
original  block was done in degrees, they have learned how to access the view  
window and push  the robot manually  to it's desired  stopping point and then 
key in the degrees on the move  block.
 

 
Thanks,  
 
Tracy
 

 
In a message dated  11/26/2008 10:24:12 A.M. Eastern Standard Time,  
[log in to unmask] writes:
 

In that case  the obvious answer is out of  memory error when downloading 
but  from what you are saying there is no such error and it appears to  
download just fine.  Therefore I think you are making a assumption  that 
the block was not included.    There may be physical  conditions where 
they block does not appear to run. 
Can you you  attach your program?

Also do you want to cc the listserv again since  there are a couple of 
others that have chimed  in?

David

[log in to unmask] wrote:
> Hi David,
>  Yes, a team member had 15 blocks and added another and it would not 
>  transfer it to the NXT.  He also added 4 identical blocks and they  
> would not download.   We have also had this problem where  we would add 
> a move forward mini move it would not pick it up on  the NXT so we 
> would put an identical move block in front of it and  it would take 
> it?  I will be sure the kids are "saving" the  new move before 
> downloading.  It happens sporadically. There  is no problem dragging 
> the move block and having it show up on the  computer screen, it just 
> does not always transfer to the brick. We  download and it downloads as 
> always (compiling info is up on the  screen and we get the beep when 
> finished) There does not seem to be  any rhyme or reason to this, it 
> has only happened with one or two  long programs.  We reboot everything 
> and keep playing with it  and usually it will end up taking it so we go 
> back and delete the  "phantom blocks that are identical" and all is 
> well.     I was reading up on My blocks to see if that would help. I 
>  can't find anywhere in the NXT book where there are limitations on 
>  blocks in a program.
>  
> Thanks,
> Tracy
>   
>  
> In a message dated 11/26/2008 9:15:18 A.M. Eastern  Standard Time, 
> [log in to unmask]  writes:
>
>
>     Hi Tracy,
>   What do you mean by " it will not take anymore "?     Is it that
>     you can
>     not  drag in another block, save the program, download to the  brick?
>     David
>
>      Tracy Reed wrote:
>     > 
>   > Hi,
>     > I was wondering if  anyone knows what the # of move blocks a single
>      > program can use.  It seems we are writing programs and when  we
>     get to
>     > approx.  15 blocks it will not take anymore.  Is there a way
>   around this?
>     > 
>   > Your input is greatly appreciated.
>   > 
>     > Tracy Reed
>   > 4-H L.E.A.D Huskies 
>      >
>     >
>      >
>     >
>      >
>      
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