Auto leveling with weight sensor.Tare signal

General Discussion
1

Hi all. I am finishing to build my delta printer and install 3 weight sensors under table. I made the end stop emulator based 9n the stm8 controller+hx711 arduino bord. Its work fine on my skr1.3 bord with marlin. But I can not find correct way to configure kliper for send tare signal before every one measure. Please give me good advice how to do it. Thank you.

2

You could probably abuse the deploy gcode functionality for that

3

After reread the documentation about configuration klipper, I found the easy way to make it.
What I did:
Define pin out:

[output_pin tare]
pin: P2.0 # SKR 1.3 servo pin
value: 0

Define gcode for blink it:

[gcode_macro blink_tare]
gcode:
  SET_PIN PIN=blink_tare VALUE=1
  G4 P200 #sleep
  SET_PIN PIN=blink_tare VALUE=0

And set gcode blink_tare in probe section:

[probe]
activate_gcode: blink_tare
1 Like