Nice shield... Only thing i am missing is proper datasheet..also function ledkeypad.display(); seems to push a single zero to serial monitor.. Quite annoying as i am constantly usi...

Nice shield... Only thing i am missing is proper datasheet..

also function ledkeypad.display(); seems to push a single zero to serial monitor.. Quite annoying as i am constantly using serial plot with values from 100 to 200.. because of zeroes the auto-scale does not kick in and grarph is unusable