M25: Pause SD card print
Issuing an M24 causes the machine printing to pause at the current position within the file. To resume printing from the current file postion, use M24. Do not use this code to pause the print in a G-code file, use M226 instead.
Refers to running a job on any Smoothie attached device such as 3D printer, Laser engraver/cutter, CNC router etc.
The command is used as such :
Which means: Pause the print
The M25 command requires no parameters
The M25 command requires no special configuration settings
These resources are used as references: