GRBL 1.1 ARDUINO uno pinouts

[tkms002]

with regards to limit switch pinouts I have seen some places noting pin 9,10 and 11 for X,Y and Z limit switches
https://blog.protoneer.co.nz/grbl-ar...or-pin-layout/
and some articles stating pins 9,10 and 12.
https://github.com/gnea/grbl/wiki/Se...e-Homing-Cycle
What is right???

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[109jb]

Depends which version of Grbl you are using. Pin 11 is used for PWM, so the Z axis swapped from pin 11 to pin 12 when PWM support was added.

[hfjbuis]

On the arduino uno R3 and GRBL version 1.1f the pins are 9,10 and 12 as stated in the GRBL Wiki.

If you use a different GRBL version, you have to follow the documentation for that version.

If I remember correct, the 9,10,11 pinout was for an older GRBL version. The protoneer link is dated 2013/01/30!

[tkms002]

yes I am using 1.1 so I will use 9,10 and 12.
Thanks