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Several things in the post and in the comments that have been posted tell me that it actually belongs here, and not on electronics. And it is a real question, so I'm going to answer it. At the present time, the most likely answer is "get an arm board with enough resources to run an operating system" - something like a beagleboard running linux for example. <ul> <li>you have a team of people, so you'll probably want some modularity to code, that's not good for trying to shoehorn a lot into a tiny controller</li> <li>you want to program in C, again, you will quickly run up against the limitations of a tiny controller</li> <li>you have 10 motors to "think" about</li> <li>Your project is likely going to have a lot more software complexity than is the norm for discussions over on electronics.</li> <li>While the base board will cost 2-3x what a small controller will, once you have USB host you can take advantage of cheap PC peripherals that are typically cheaper than their SPI or bare-bones embedded equivalents for storage, networking (I know you said no, but its great for debugging, you can disconnect it in application), perhaps a cheap bluetooth dongle as an alternative to a more traditional wireless solution like zigbee, etc. Putting an outboard USB coprocessor on an arduino is silly, slow, and kills any cost advantage.</li> <li>Being able to "log in" to your embedded system is a huge advantage. Even if you go with a smaller controller, try to have a command/monitoring channel with human readable commands, where you can use a terminal to do things like say motor1,-10 or ask question like vbatt? </li> </ul> Now, there are some downsides to advanced processors like the OMAP Arm device on Beagleboard, and dealing with those might warrant a supplemental question over there. A key one will be that the I/O voltage will be lower than most are used to playing with - something like 1.8 v instead of 3.3 or 5v. So you'll need a level translator or carefully designed driver circuits. Or perhaps that is where the arduino folks are so eager to blindly recommend does have a role - NOT as the brains, but as a subservient I/O controller taking serial commands from the main cpu.
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1. POMicrocontroller choice and programming for Robot
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1. USChris Stratton
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1. USChris Stratton
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