Originally Posted by
pphaneuf
You'd need a microprocessor to do dynamic timing advance, right? Which is really what I'm after in terms of automating the workflow (being able to set the dynamic timing advance from the computer). If it's going to be "blinky" anyway (static timing advance), using a cheap off-the-shelf ESC would be fine.
I think there might be more hope in reverse-engineering the protocol of something like the TrackStar GenII 1S programming card interface.

Yes, the microprocessor is necessary for any type of automation.
Rather than reverse-engineer the protocol for an existing ESC, it might be more cost-effective to just pay the manufacturer to do the software.