Update 2023/08/13: Thanks to Tom Nardi’s introduction on Hackaday, I kinda feel obligated to provide a bit more details about this project. So more information and some small updates are incl…
The advantage of the Q10/Q20 keypads is that they are very well documented and much cheaper. The KeyOne and Key2 keypads have virtually no open source documentation.
Oh for sure it would be way harder to implement.
I need a portable ssh terminal and I hate no physical keys on my phone. This seems like a big step up.