BTT SFS v2.0 False trigger

General Discussion
1

Basic Information:

Printer Model: Sapphire Plus with direct extruder mod
MCU / Printerboard:MKS Eagle
Host / SBC: OrangePi 3 LTS
klippy.log
klippy.zip (1.7 MB)

Describe your issue:

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I need help with debuuging BigTreeTech Smart Filament Sensor v2.0
The motion sensor (encoder) triggers falsely at random moments. The last trigger in attached klippy.log was false. I just manually extruded 10mm of fillament, hit Resume and print continued, so there was nothing wrong with extrusion.
According to datasheet, this sensor ticks every 2.88mm of filament. I tried increacing detection_length up to 20mm in printer.cfg, but false triggers still occur.

As I understand, Klipper counts such sensor as triggered if feeder fed more than detection_length while there was no signal changes from motion sensor. Is it correct?

2

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