keypad matrix - daisy chain

spycatcher2k:
Design the PCB and have it made. :slight_smile:

yeah i could.. if i really knew how.. been looking at easyEDA and such.. believe me i'd really like to start designing my own i'm just not good at that stuff.

clarktrans:
you can use a Adafruit Trellis and link up to 8 of them together to make arrays of different shapes and the modules maintain the same key pitch as the array is expanded

Adafruit Trellis Monochrome Driver PCB for 4x4 Keypad & 3mm LEDs : ID 1616 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits

again, that also takes 5 of them to connect and not align the way i want them.. it's the same issue as the second picture in my first post.