HP-42S "reinterpretation"

[BarryMead]

(05-04-2015 05:35 PM)emece67 Wrote:  I'm now studying if this can do the trick.

I have used these breakout boards. They work really well at scaling tiny SMT pin spacing up to human accessible sizes. If one segment of the community lacks the ability to solder the tiny SMT parts, another segment could supply the CPU's pre-soldered to the breakout boards. This would make using SMT CPU's almost as painless as their less capable through-hole counterparts. It would be nice to have the extra ROM and lower power capabilities of the ARM CPU's. It seems reasonable to leave room for expansion and feature enhancement. Things do tend to grow in unpredictable ways, that is the beauty (and curse) of collaborative community based development. What starts out as an HP-42s replica, could be enhanced to the point where it resembles the WP-43s prototype.