Add light macro into start config

General Discussion
1

So i am fairly new to klipper, i got the case lights setup on klipper using a fan port. I cant seem to find any information on possibly adding that into my start config so it will turn the lights on when i start a print.

This is what i am running to control the lights right now.

[output_pin LED_pin]
pin: PE5
pwm: True
value: 0
cycle_time: 0.010

2

Hello @Maj.D.Hurtz !

You could use a Gcode for that :

[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}

M355 S0 turns light off
M355 S1 turns light on
3

Awesome Buddy! Thank You! It worked like a champ.

1 Like
4

Hi Eddy,

one question. How do you know Klipper supports M355?

G-code - RepRap isn’t explicit. Do the three ?s
???
inplicate there might be a possibility, that this G-code command might work with Klipper?

G-Codes - Klipper documentation Klipper documentation doesn’t mention M355.

What is your source to know M355 is supported by Klipper?

Kind regards, hcet14

5

He built M355 via macro or what do you want to know exactly?
I’m controlling LEDs in my CoreXY as well but have to look how I do it there.

1 Like
6

@hcet14

M355 is the Marlin gcode for enclosure light.

And then as @LifeOfBrian said:
You can create own gcode macros in Klipper.

https://www.klipper3d.org/Command_Templates.html

7

@LifeOfBrian & @EddyMI3D

Thanks, sorry for that stupid question from me.

Kind regards, hcet14

1 Like
8

This is how I did it with a LED strip powered with a MOSFET via Configuration reference - Klipper documentation

Definition of the LED itself:

[led LED_Bauraum]
white_pin: PE6

And the respective macro to control it:

[gcode_macro Bauraumlicht]
gcode:
  SET_LED LED=LED_Bauraum WHITE={params.VALUE|default(1)|float}

And then you just call it via

Bauraumlicht

to turn it on and

Bauraumlicht VALUE=0

to turn it off and with 0.0 - 1.0 you can change its intensity.
And as you can guess and read in the documentation you can control full RGBW-LEDs with this without the need of a couple of SET_PIN calls.