I am inexperienced in PCB design, but have been a hobbyist for decades. I am finally giving in to the idea of having someone else manufacture a board for me. (I tried the do-it-yourself thing with a laser printer about 20 years ago, with mixed results).
For my current project, it is a bit big (600x150mm). PCBShopper shows two vendors, with the US supplier the cheapest!
I have more options if I were to chop the board into two chunks, but the cost goes up. That makes sense, setup takes time/money. That isn't the problem. This is a hypothetical, because I don't have enough problems right now.
If I needed to chop boards into pieces for fabrication, would it be feasible to create board-to-board connections if the signal frequency was low? What would I need to take into account?
Would some headers and a ribbon cable work? What if I put in Bus/Line drivers?
My current project is running low frequency, 10-20Hz, low voltage (3-5V).