@oscillator congratulations Staffan, I'm a year late to the party but just wanted to say this is a lot of fun and I really appreciate the thorough documentation and the very readable code (speaking as a C-phobic beginner programmer).

I'm planning to make this into a module for my AE format modular synth. For now, I'll start by just feeding it into a converter but will eventually get the other components organised to make it work nicely in the system with my other modules. At least you have given me a nice wagon to fall off! :)

Can the USB port on M5Paper and other M5Stack devices be used as a USB host or OTG connection, or it is purely for power and for programming? If so, what would be involved in getting a USB keyboard to talk to my application?

Thanks Felix,
I'll definitely take a look at this. It looks like a proof of concept, so far though (single keys only, not multiple at a time).

I am a bit surprised that there seem to be no general USB or Bluetooth keyboard support libraries in the M5 world.

It's probably a sign from the MCU gods and goddesses that it is time for me to stop being a scaredy-cat and to start learning to use C and C++.

I can only see myself going deeper down this kind of rabbit-hole, so I can not avoid C forever. :)

Rodney

Dear all, I am very new to M5Stack.

I would like to process keyboard input either via Bluetooth or USB. I have searched through this forum and any docs I have found, but no clue as to how to do this. I am particularly interested in typing to M5Paper for a project, but also interested in how it can be done on Core2 and others.

Can anyone point me to the right info?

thanks in advance,

Rod