We are setting up our own stepper controller using an UNO/grbl combo. Have one drawing of UNO pin layout that shows the limit switches on pins 9,10 and 11 while the homing setup on git-hub says 9, 10 and 12. Any help appreciated.
Grbl 0.8 had different pinout than the newer Grbl 0.9 and 1.1 See v0.8: grbl/grbl (also shows the updates made to support v0.9) See v1.1 gnea/grbl Of course last version of 0.9 was July 2016, and 1.1s been out since Dec 2016, so please throw away the 0.8 based information - too old! Use v1.1
