16c overlay in TheCalculatorStore

[Steve Simpkin]

(10-15-2023 05:23 PM)Divasson Wrote:  Regarding the suggestion about the WP34s and WP31s - it does not make a lot of sense to provide a solution for a hardware for which there is no current supply and where everyone using it has already a solution installed - IMHO.

However, we have a calculator in production, the HP10bII+, which can also be repurposed (and the repurposing using USB protocol is far easier than with the serial cable, believe me). This calculator has a good keyboard and a lot of keys (40) - it is just missing alphanumeric entry. The only thing we need is the cable, which we're working on. Anyone interested in tackling the project?

As you mention, I think the big drawback with repurposing the HP10bII+ will be its limited 12 digit 7-segment display. Any project worth doing would probably be too much work for such a limited display. The HP 20b/30b platform at least had a small dot matrix section to use for text which the WP34s/31s project used to good effect.