This is really a question for @cleoqc.
I have several operating systems installed on my 'bot that I will eventually (try to) convert to versions of software compatible with the GoPiGo.
Until that happens, I still want to be able to boot them headlessly and I want to signal that the boot process has completed.
Part of the problem is that using the PINN boot manager, even with a pre-selected operating system, causes the boot process to be significantly longer.
What I would like to do is, somehow or other, control the GoPiGo LED’s using methods that do not depend on the Dexter 'bot libraries, or only a very limited subset of them. I am asking this because it is already known that later versions of Raspbian have difficulties with the R4R libraries, etc. (Which is something I want to research.)
I want to boot the OS, and then turn on one of the LED’s, (like the antenna LED), to signal that the boot process is complete and I can attach to the 'bot.
Is this doable in some low-level way?