 | | Lithium ion rechatgeable battery & handyboard?
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Dear, Hi, i am currently works on a wheeled mobile robot project. I need a 12v external power supply to power my 3 minimotors (12V & 4.2watt) since handyboard only can support up to 9v and 1 amp. I want something light and provide high amp. I found (...) (22 years ago, 15-Oct-02, to lugnet.robotics.handyboard)
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| | Re: More Battery Questions
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Replacement battery options are listed on the HB FAQ, at: (URL) don't you get the 1000 mAh packs from Radio Shack? That would give you 2x the run time of the 500 mAh packs. Take longer to charge, but would require no other board mods. Fred (...) (22 years ago, 12-Oct-02, to lugnet.robotics.handyboard)
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| | More Battery Questions
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Hi, First I wanted to thank the handful of people that responded to my previous question about HB batteries. We seem to be getting by using Fred's suggestions, basically being more careful about charging, using ZAP mode to pull up really dead packs, (...) (22 years ago, 11-Oct-02, to lugnet.robotics.handyboard)
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| | I just did a quick scout around and....
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(...) A few minutes ago, my curiosity got the better of me about this, so I did a quick scout about on the web and found this: (URL) I'm not trying to endorse this company in particular, I'm mentioning it here as an example of what I was referring (...) (22 years ago, 10-Oct-02, to lugnet.robotics.handyboard)
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| | Re: Handyboards for Dummies, etc.
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(...) Well, first of all, injection moulding may not have to be the only option. Thermoforming may be another alternative that to my understanding does not carry anywhere near the initial expense as injection moulding. Secondly, what might make it (...) (22 years ago, 10-Oct-02, to lugnet.robotics.handyboard)
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| | Re: Handyboards for Dummies, etc.
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A case as you describe it would be nice. To me it's largely a cost issue. Custom plastic is expensive to set up -- thousands of dollars for an injection mold. Anyone care to open-source a design? That would be a start :-). Fred (...) (22 years ago, 9-Oct-02, to lugnet.robotics.handyboard)
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| | Handyboards for Dummies, etc.
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Can someone please enlighten me as to why the handyboard is only available as a bare motherboard? Although that may be fine for experiments in controlled environments, it doesn't work at all well for less than ideal circumstances such as out of (...) (22 years ago, 9-Oct-02, to lugnet.robotics.handyboard)
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| | Re: Handyboard and 1400 mAh NiMH battery
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Hey -- I like your device. That's a nice addition to the HB. I would like if you would modify your assertion "However these days NiCd battery are hard to find and not very effecient" (sic). This is not true. Despite the technical superiority of (...) (22 years ago, 8-Oct-02, to lugnet.robotics.handyboard)
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| | Handyboard and 1400 mAh NiMH battery
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Hi I have developed Handyboard battery charger addon ckt which replaces the 47 ohm resistor on handy board battery charger. this battery charger ckt let you put NiMH battery up to 1600 mAh without woring overcharging and other problem. if you are (...) (22 years ago, 8-Oct-02, to lugnet.robotics.handyboard)
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| | HB and Pocket PC
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Hi, I’d like to get my Handy Board communicating with my Pocket PC(HP Jornada) via the Pocket PC’s IrDA and the Handy Board’s IR port. Has anyone of you ever tried that? Your help would be really appreciated! Best regards, Jan (22 years ago, 7-Oct-02, to lugnet.robotics.handyboard)
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