Subject:
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Re: Mars mission IV
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 10 Mar 2008 17:48:20 GMT
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Viewed:
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9411 times
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"Claude Baumann" <cbaumann@ci.educ.lu> wrote in message
news:JxIys1.HME@lugnet.com...
> We are currently (and urgently) working on a new edition of our Mars
> mission
> project (http://www.convict.lu/Jeunes/Mars/breaking_news.htm). The idea is
> to
> start from our former RCX experiences and add some new features this time.
> We
> are designing the rover in traditional stud-technology with the RCX.
>
> (Why not NXT? Our issues are: if ever we have to hack a control-brick,
> better do
> it with an RCX; we haven't the time for long-time tests, so we need to
> rely on
> our previous experiences).
>
> The rover has already been designed as a kind of Rocker-bogie suspension.
> I'll
> soon post some pictures to our web-site.
>
> The ultimative challenge seems to be the fully autonomous robot that also
> recharges its batteries with solar panels. I'm not sure this can be done
> with
> the LEGO solar panels. My questions now turn around the circuitry that is
> necessary to use the panels to charge 6 NiMH batteries. Probably we'd need
> a
> pump circuit with a coil and a pulse control. Has anyone got more reliable
> data
> about the solar panels? What about the gold capacitor? Has anyone an idea
> how to
> design such a circuitry? is this a realistic challenge? How far can the
> RCX
> power consumption be reduced?...
>
> Are there interested people to help me design this?
>
> -Claude
Solar Cell / RCX info -
From the LEGO site:
http://www.lego.com/eng/service/faqs.asp?section=ConsumerService-FAQ-TechSupport&catid=87BC4CA6-D8CD-4BF1-8307-6B52AB45AF02&faqid=1725&tech=true
" What are the specs on the LEGO Solar Cell and Capacitor?
The LEGO Solar Cell and Capacitor are designed to be used with the LEGO
Educational Division set, but can be used with the Robotics Invention
System. The Solar Cell supplies 3V, 200mA in full sun outdoors, and 3V,
100mA in full sun through a window. You can connect the solar cell to power
a LEGO motor, but the motors require 9 volts to operate at full strength.
For more information on the LEGO Solar Cell and Capacitor, please visit the
LEGO Dacta site at http://www.lego.com/dacta/hardware/solarcell.asp"
-----------------------------------------------
Some more helpful info from Lugnet:
http://news.lugnet.com/robotics/?n=16142&t=f&v=a
Some more recent info involving an NXT from nxtasy.org:
http://forums.nxtasy.org/lofiversion/index.php?t385.html
And more specifically, here's a working solar RCX robot rover:
http://home.earthlink.net/~stuff.tm/solarlego/index.html
Good luck!
-Rob
www.lifelites.com
www.brickmodder.net
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Message has 2 Replies:
 | | Re: Mars mission IV
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| (...) presentation, of a very novel hack to the RCX. Note that while he used non-LEGO technology (the LEGO solar cells, while robust, have a really poor power-to-weight ratio, and his "energy can" beats the pants off batteries for this sort of (...) (16 years ago, 10-Mar-08, to lugnet.robotics)
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Message is in Reply To:
| | Mars mission IV
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| We are currently (and urgently) working on a new edition of our Mars mission project ((URL) The idea is to start from our former RCX experiences and add some new features this time. We are designing the rover in traditional stud-technology with the (...) (16 years ago, 10-Mar-08, to lugnet.robotics)
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