flexi-bot/docs/marlin/_gcode/M104.md

tag	title	brief	author	group	codes	notes	parameters	examples
m0104	Set Hotend Temperature	Set a new target hot end temperature.	thinkyhead	thermal	M104	- With `PRINTJOB_TIMER_AUTOSTART` this command will stop the print job timer if the temperature is set at or below half of `EXTRUDE_MINTEMP`.	tag since optional description values I 2.0.6 true Material preset index. Overrides `S`. type tag int index tag optional description values S true Target temperature.<br/>`AUTOTEMP`: the min auto-temperature. tag type temp float tag optional description values F true `AUTOTEMP`: Autotemp flag. Omit to disable autotemp. tag type flag bool tag optional description values B true `AUTOTEMP`: The max auto-temperature. tag type temp float tag optional description values T true Hotend index. If omitted, the currently active hotend will be used. tag type index int	pre code Set target temperature for the active hotend M104 S185 pre code Set target temperature for E1 M104 T1 S205 pre code `AUTOTEMP`: Set autotemp range M104 F S180 B190 pre code `AUTOTEMP`: Disable autotemp M104

Set a new target hot end temperature and continue without waiting. The firmware will continue to try to reach and hold the temperature in the background.

Use M109 to wait for the hot end to reach the target temperature.