Hello, i'm new to the forum. I just want to learn about the simple casio calculator models like the fx-82ms.
The only calculator similar to these ones that i own is a very weird "Helect" branded casio fx-82 clone, it has no branding other than the Helect logo, no serial numbers, nothing.
I took apart the calculator recently and i realized that the only thing inside was an epoxy or some kind of resin blob, with a rubber membrane keyboard and lcd connected to it.
I would like to know what hardware this is, ways of "hacking" or messing around with it (if it's even possible), and know about how they work basically.
I researched a bit about this early this week, but i didn't find a lot of information regarding the hardware, the only "hacks" or something similar people know is the secret functions glitch, which doesn't work on my clone model, i don't know why, maybe it's just not compatible, or i'm doing it wrong.
Judging from the price i don't think these calculators are programmable, but if they somehow are, i would like to know how to mess around with them a little bit, mine has 12 5x6 pixel boxes or sprites to draw numbers and symbols, those numbers and symbols have to be stored in some kind of memory inside that blob, if there was a way to modify that data, that would be awesome.
Anyway, hope i learn something from this! Thanks in advance