Re read Hal pin while in GCode

Hi,

is it possible to read a hal pin with #<_hal[Halpin_example]> then trigger a routine and re read the pin afterwards to check if the state has changed?

If i just continue with the next o if state the halpin is still low in the file even if its state has changed to true before entering the o if state..

br

M66 wait on input will let you wait until it changes
linuxcnc.org/docs/html/gcode/m-code.html#mcode:m66
Have a look how Plasmac changes tools/materials.

Perfect that could be exactly what I was looking for.
Why is it limited to 4 inputs?

It worked fine thanks for the hint

Br
Dominik

It isn't really limited to 3. See section above:

The P-word ranges from 0 to a default value of 3. If needed the the number of I/O can be increased by using the num_dio parameter when loading the motion controller. See the Motion Section for more information.