Subject:
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RE: My Ambulators
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 17 Jan 2002 17:37:44 GMT
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Original-From:
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Nathan Nesbit <nathann@windows.microsoft.com[Spamcake]>
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Viewed:
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1922 times
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Why does the datalog not work for you?
-----Original Message-----
From: Rob Reed [mailto:robert_hilman@hotmail.com]
Sent: Wednesday, January 16, 2002 11:28 PM
To: lego-robotics@crynwr.com
Subject: Re: My Ambulators
Using the programming environment that comes with Mindstorms is a little
frustrating in that I want to simply capture data streams in a data file
and dump it to, say, a spreadsheet.
What I've found myself doing is using the LCD window on the rcx module
to get a visual on a reading (say, rpm or temp) over a fixed time
interval, then writing it down on a sheet of paper, one row of data for
each condition.
I am sure that there is a more elegant way to do this, perhaps storing a
series of data points into variables in the system, but there is still
the problem of output.
I find myself smiling and agreeing with Brian in that I spend enough of
my life in front of a computer already, and the joy of tangible
mechanical creation often overides the urge to program.
-Rob
In lugnet.robotics, Brian Sadowski writes:
> Well..I did kinda, Some foreground information is needed before I can
> explain that. The lego touch sensors arent simple toggle throw type
> switches, they have a precision, where the touch sensor can have values
> ranging ( for example ) 0 to 100, where 0 is no touch at all, and 100
> is fully depressed.
>
> The 16 tooth double bevel gear doesnt completely depress the switch. In
> theory you could use the RAW touch sensor data to determine when each
> tooth of the gear makes contact with the sensor.
>
> I work as a programmer for a living, so I dont like getting into the
> programming part as much as the pure mechanical building of the legos,
> so I never wrote a program to determine if that rotation sensor
> actually works, or how reliable it is, therefore its just theoretical (
> hopefully I spelt that one right ). I'd would love to see someone write
> the code to determine if this actually works.
>
> Hope that helps.
> -Brian
>
>
> > did I conclude it right that you made a
> > rotation sensor with the normal lego switch ?
> > If so, great (because finally we've a destination for that terrible
> > sensor), does it work well ? If not so (maybe also great) but what is
> > it ? Stef Mientki
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Message has 1 Reply:
 | | RE: My Ambulators
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| I used the datalog to upload a batch of data to the PC and then used Excel's import to make it into a spreadsheet. It was easy and worked well. I used the spreadsheet to precisely characterize my motors so that I could match motors to each other in (...) (25 years ago, 18-Jan-02, to lugnet.robotics)
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