USB Serial echos characters into the input (i.e. keyboard)

[ag123]

I'm attaching the bin files and Makefile here, in case that helps.

For those using that makefile, most likely it'd need to be Linux environment. It is possible to run Linux in windows by using WSL
https://learn.microsoft.com/en-us/windows/wsl/install
and likely one'd need to edit the makefile e.g. to point to the arm-gcc-none paths etc.
more details about the makefile in its own thread
viewtopic.php?t=37