M301 - Set Hotend PID

thermal Set PID values for a hotend. PIDTEMP

Set the values that control the PID loop for a hotend.

Requires PIDTEMP.

View current PID values with M503.

If EEPROM_SETTINGS is enabled, all hotend PID values are saved with M500, loaded with M501, and reset with M502.

M301 [C<value>] [D<value>] [E<index>] [F<value>] [I<value>] [L<value>] [P<value>]

`[C<value>]`	C term (requires `PID_EXTRUSION_SCALING`)
`[D<value>]`	Derivative value
`[E<index>]`	Extruder index to set. Default 0.
`[F<value>]`	F term (requires `PID_FAN_SCALING`)
`[I<value>]`	Integral value
`[L<value>]`	Extrusion scaling queue length (requires `PID_EXTRUSION_SCALING`)
`[P<value>]`	Proportional value