---
tag: m0140
title: Set Bed Temperature
brief: Set a new target bed temperature.
author: thinkyhead

group: thermal

codes: [ M140 ]

notes:

parameters:
  -
    tag: I
    since: 2.0.6
    optional: true
    description: Material preset index. Overrides `S`.
    values:
      -
        type: int
        tag: index
  -
    tag: S
    optional: true
    description: Target temperature
    values:
      -
        tag: temp
        type: float

examples:
  -
    pre: Set target temperature, no waiting
    code: M140 S80

---

Set a new target temperature for the heated bed and continue without waiting. The firmware manages heating in the background.

Use [`M190`](/docs/gcode/M190.html) to wait for the bed to reach the target temperature.