Hell yeah!
There’s a lot of great input here, so just some additions:
RE: The voltage regulator- yes don’t cheap out on this part.
Strongly seconded!
This is a dev board, so something that might be good to put in, is to break out the GPIO on the CP2102-N.
Why, you might ask? Well- it is a dev board and you might sell these independently.
But, even for your own use, you may be able to use the GPIO for your own tests. For example, use them for self-test of the jackpot. (stimulate the endstop switches, or the GPIOs, or even make test adapters for the polulu sockets…)
You don’t necessarily need to fit header pins them in all boards built, just leave solder pads or through holes so that they can be populated if/when desired.
Be careful about this- cheap USB/Serial bridges are a source of much pain and suffering! I’m pretty happy with the 2102 being on the boards supplied with my Jackpot.