# Add light macro into start config

**URL:** <https://klipper.discourse.group/t/add-light-macro-into-start-config/9719>\
**Category:** General Discussion\
**Created:** [July 29, 2023, 3:07pm UTC](https://klipper.discourse.group/t/add-light-macro-into-start-config/9719 "2023-07-29T15:07:47Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\
**Post date:** [July 29, 2023, 5:27pm UTC](https://klipper.discourse.group/t/add-light-macro-into-start-config/9719/2 "2023-07-29T17:27:57Z")

</div>

Hello @Maj.D.Hurtz !

You could use a Gcode for that :

```auto
[output_pin LIGHT_pin]
pin: PE5
pwm: False
value: 0

[gcode_macro M355]
gcode:
  {% set S = params.S|default(1)|int %}
  #default_parameter_S=1
  SET_PIN PIN=LIGHT_pin VALUE={S}

```

```auto
M355 S0 turns light off
M355 S1 turns light on

```

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