Part 2 - Wiring diagram

Due to the Chinese Pro micro only having 18 pins (rather than 19 for 13 columns, 5 rows), I had to be a little creative with wiring.

Here's what the working steps to figure out how to wire everything:

This is with the keys "moved" so you can see the columns and rows

This is with the keys placed back together.

Remember that most handwired keyboards are done row to column. I used http://kb.sized.io to develop these diagrams.