problems with switching i/o pin with M42

  • Hi,

    i try to switch the a pin (heater4 and heater5) on the expension connector. I have added M307 H4 A-1 C-1 D-1 and M307 H5 A-1 C-1 D-1 to my config.g. And then i tried to switch the pin with M42 P4 S255 or M42 P5 S255 but there is an error message "Error: M42: Logical pin 4 is not available for writing". What is my mistake???

    kind regards


  • administrators

    If you have a config-override.g file, it may contains M307 H4 and M307 H5 commands that override the ones you have put in config.g.

  • ok thanks now it works!!!