Expansion wire color code
This article is at https://forum.clockworkpi.com/t/expansion-wire-color-code/5615
Community member Michael_The_Maker asked a question on the forum: Does anyone know what the color coding on the keypad expansion wires are?

Well, we believe that was a common question that some of makers would be facing.
Fortunately, we've got some awesome folks in the community.
p3dt has offered us an instruction of the GPIO
The GPIO Table is as follows: Type Pin# (ext.) Pin # (Package) Function 1 Function 2 Pin #(sysfs) Color