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Hi what is the pin out on the x,y,z axis on touch dro board. I know the 5 volts what are the rest.  I have 5 pins on scale 5 v, a, b, r1 and a ground black

There is a pinout diagram and detailed description on the page where you purchased the board.
You don't need r1 (that is "reference" and TouchDRO doesn't need it).
Regards
Yuriy

Thanks found it after going through all the pages. By the way when will TouchDro glass scales V2 board be in? Thanks again Lynn