there are many single digit and multiple 7 segment display kits driven by arduino, eg Arduino and 7 Segment LED
But I need a vertical 2-3 digit 7 segment leds but there isn't 1 around. So how do I wire them together? and once i've the wiring figured out, how do I get the wiring sorted out on a breadboard?
the thing is, how do i fabricate a circuit board to mount these leds such that they are arranged vertically? led kits sold in stores have pre-drilled and pre-etched pcbs to mount and solder the leds.