Some questions on HP-41

[Ángel Martin]

(09-13-2019 03:59 PM)Garth Wilson Wrote:  I keep hoping against hope that someone will make a module with a microSD card slot! The usefulness would mainly be to share files though, or to hold more than the 41's main and extended memory can; because the 41 is much more reliable than the PC for keeping it long-term.

So do I , but I'm not optimistic about it. It appears to be more complicated than it looks, or maybe it is that the hardware aspects of the design are expensive, the fact is there's no movement on that area unfortunately.

PS. Meindert Kuipers had a prototype working a few years ago, but unfortunately he's not interested in the project anymore. Check the video in the link below, the SD card appears in minute 3:50 approx.

https://os.mbed.com/users/DeMein/noteboo...readboard/