Subject:
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Re: HB's mA consume?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 29 Feb 2000 22:10:20 GMT
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Original-From:
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William Bain <montanawill@yahoo.SPAMLESScom>
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Viewed:
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635 times
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If your calculations are correct, and your solar panel provides 40 mA, and you get maybe 6 hours
of strong, useful sunlight per day, then I figure you'd need eight solar panels and three battery
packs, minimum, to keep the HB running all the time, without any motors or other devices.
--- Jose Luis <jldf@mail.com> wrote:
> Hi,
>
> Today I have tested the time the HB can stay powered with his battery (just
> the board, without any other device attached), its work during aprox. 8 hs,
> so because the batteries I use are 600 mA, I believe that the consume of the
> board is around 75 mA, can it be right? or my batteries are in bad
> condition? Someone has made the same test before?
>
> Thank You
>
> Jose Luis
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Message has 2 Replies:
 | | RE: HB's mA consume?
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| Thanks your answer Will, well, seems not easy to give a good use to a solar panel in the HB If I want to connect the a panel to the HB charging circuit, it must be 12V/500mA like the AC adaptor? or with less current (maybe 200 mA) , it can still use (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
| | | RE: HB's mA consume?
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| Well, you can _greatly_ increase the efficency of the handyboard if you remove the 7805 regulator and replace it with a PowerTrends switching regulator (Digikey sells these among others). I would suggest you run three wires from the regulator to the (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
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