NP-41 Emulator (may be)

[Chris Chung]

(12-20-2015 12:59 AM)Geir Isene Wrote:  But... the other way around - take a 41CL board and build your LCD and keyboard and a good metal casing around it - and we may have a killer?

Building a IO / peripheral system that match HP-41C quality in a small scale is no small task. I suspect that's also the reason the 41CL was created as a "brain transplant" project, just to avoid the difficult mechanical component and also the nowhere to be found LCD display.
The only benefit this NP41 project can bring to 41CL would be the 14 segment display. To make it into a donor replacement will take a lot of understanding on the HP-41C? bus and signals. I am less interested in working in this area.
The custom LCD might be of interested to other developers, we can initiate a batch order (300 units) w/ Waon if there are enough interest. As a matter of fact, I am contemplating to use it on other projects.