Ok thanks.i think i have it pretty much figured out. The arduino is coming from china so will probably take a week or two to get here with free shipping. I also included female to female “dupont” cables with my order for piggybacking from the ufb witch i already have a pin header soldered to.
I also ordered female to male dupont cable. My plan is to make pairs of leds witch i can disconnect from the chain if i want to swap out a button by soldering male dupont cables to the first of the pair then female to the second of the pair. It sounds weird but ill post pics once (if) i get it done, then it should make sense
Oh yeah im installing this in my trusty old atrox so usb is no problem since i can just open the lid for flashing the arduino.