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as for your battery, would this be for locomotion or powering electronics? for locomotion it should be fine as most servos run off 4V8-7V2 but for the electronics... you *may* require a higher voltage if you need regulated power.
* Power input: 100-240VAC/50-60Hz 19W DC Consumption: 5V/3.0A * High efficiency POL DC-DC converters
just a side question, what sensors will your robot incorporate?
http://www.globalscaletechnologies.com/t-sheevaplugdetails.aspx#features is some information about the SheevaPlug specs.I have been watching the Sheevaplug and hoping that someone will do something interesting with this soon. the phidget controller smash mentioned has linux support from kernel 2.4 which is good, I'm not sure how you will go with hooking a screen up to it though..You might look at some single board computers, see robotshop for example. They can run windows/linux. It doesn't have the speed of the sheeva but will be easier to interface and especially power!
Quote * Power input: 100-240VAC/50-60Hz 19W DC Consumption: 5V/3.0A * High efficiency POL DC-DC converters owch thats 15W your gonna need a fairly big battery to run this + the servos...are you set on using a sheevaplug itself? there are probably other boards on the market that can do similar but consume less power like the gumstix http://en.wikipedia.org/wiki/Gumstixit can run linux and is very similar to sheevaplug...but, its your choice...
Would http://battstore.stores.yahoo.net/powwheelbat6.html work for a battery? That should give me 3 hours of battery life at least right? They are cheap so I could just swap them out! I actually have about 5 of them just sitting around.
No, I"m not all that attached to the sheevaplug at all.
You're right on the speed though, but I would think anything over 300mhz would be adequate for what I want to do.
1. Relay images back to my web browser via ad-hoc wireless network.
2. Play checkers against humans (Display on the screen a checkers board and checkers peices) and learn from each match. Perhaps even 2 person texas holdém.
3. Build an AI mechnisim for human interaction. Including personalities, dealing with basic human interaction like greetings, ansewering questions, telling life story. Also, it'd be interesting to to use the robot as a pick up line tester. See which pick up lines people respond to and which ones they laugh at or just walk away from.
4. Be able to look up basic facts, figures, numbers, weather, scores, etc if it has an internet connection.
5. Explore doing voice rendering and text translation of commands.
6. Have an option to do on the spot wifi hacking or maybe have a built in network sniffer that displays passwords like the Wall of Shame at defcon.
Basically it would roam about the Neighbor hood cracking WEP and WPA networks. You'd want a decent CPU for that!
I'm a bit confused why you think it is bad application. Part of it is size, which is an advantage over a netbook/laptop, but they are basically the equivalent as far as specs go when considering the application.