flexi-bot/docs/marlin/_gcode/M304.md

tag	title	brief	author	requires	group	codes	notes	parameters
m0304	Set Bed PID	Set PID values for the heated bed.	thinkyhead	PIDTEMPBED	thermal	M304	Requires `PIDTEMPBED`. View current bed PID values with [`M503`](/docs/gcode/M503.html) If `EEPROM_SETTINGS` is enabled, bed PID values are saved with [`M500`](/docs/gcode/M500.html), loaded with [`M501`](/docs/gcode/M501.html), and reset with [`M502`](/docs/gcode/M502.html)	tag optional description values P true Proportional value tag type value float tag optional description values I true Integral value tag type value float tag optional description values D true Derivative value tag type value float

Set the values that control the PID loop for the heated bed.