[sdiy] arduino module mission

[Jason Proctor]

>I used to (before getting my XMEGA128A1) use the mega168 as my uC of 
>choice. I never wrote any extemely large programs using the m168s, 
>but you should be able to fit not only a LFO, but an ADSR and a 
>midi->CV on the same chip at the same time, configuring it by a dip 
>switch or something like that. That saves the ~$5 of the USB 
>circuitry + connector (even though I add it into every project I 
>ever build ;p)

well yes, but i'm not planning to ship a module. i'm planning to ship 
a platform. the accessibility of USB is a paramount requirement. the 
168 will probably get swapped out for a 328, but then the board will 
only mandate a footprint, and i'm not going to be selling kits :-)

>Also, consider not just making a "shield", but a board for the m168.

the shield doesn't work anyway, for reasons explored in other posts. 
the prototype has MOTM power, regulators, and 
interface/isolation/buffering type stuff. the actual board will have 
at least that.

>Either way, going digital with surface mount and 3v3 logic is A+ in my book.

that fails the accessibility requirement, sorry :-)