Could you tell me how you connected it to the main board of the sovol?

When I add the following to the klipper printer.cfg:

[filament_motion_sensor encoder_sensor] detection_length: 7

The minimum length of filament pulled through the sensor to trigger

a state change on the switch_pin

Default is 7 mm.

extruder: extruder

The name of the extruder section this sensor is associated with.

This parameter must be provided.

switch_pin: PA5

changing the switch_pin name according to your motherboard

#pause_on_runout: True #runout_gcode: #insert_gcode: #event_delay: #pause_delay:

I get the following error: The value 'filament_sensor' is not valid for SENSOR

I can't tell if it is working.

Could you tell me how you connected it to the main board of the sovol?
Are you using version 1 or 2 of the sensor?

from smart-filament-detection-module.

I got this same error testing the optical side of the sensor only. I had commented out the switch portion just to isolate the correct pin with fewer variables since sv06 plus was a nightmare to track down the board pinout. With it commented out in printer.cfg my misc-macros file containing the print_start, end etc had no reference to the sensor as it was essentially missing from printer.cfg. Also Check your formatting as I know mine likes to get muddled up by spacing errors especially on mobile edits, as well as spelling, brackets etc.

from smart-filament-detection-module.