DataTerm 2

I'm working on Shop Env, AC Thermostat, etc. and need a data terminal, so I decided it is time to revamp the orignial Data Terminal in DustCollection.  
I'm going to try a flat membrane keypad.      

Keypad Pin Col/Row PCF8574 Pin
1 Col: 3P3
2 Col: 2P2
3 Col: 1P1
4 Col: 0P0
5 Row: 3P6
6 Row: 2P7
7 Row: 1P5
8 Row: 0P4