Always triggered

[Nmorelm]

Trying to setup my BDsensorM v1.1 using EXP1 connection on BTT Octopus v1.1 Klipper shows probe as always triggered , no matter is it near bed or in mid-air. Thas my klipper config part for probe:

[BDsensor] 
sda_pin: PE10
scl_pin: PE9
delay: 20 # you can set it 10 if the BDsensor version is >=1.2
z_offset:0 #  within -0.6 to 0.6mm
x_offset: 0
y_offset: -23
no_stop_probe: # fast probe that the toolhead will not stop at the probe point,disable it by commenting out.
position_endstop: 1.2 #the triggered position, recommend value is 1~2.8
collision_homing:0 #  set it 1 to enable homing with nozzle collision sensing.
collision_calibrate:0 # set it 1 to enable auto calibrate BDsensor with nozzle collision sensing.
#QGL_Tilt_Probe:0 #set 1 to enable probe up and down when do quad_gantry_level

08:25
x:open y:open z:TRIGGERED
08:25
m119

08:25
BDsensorVer:V1.2c pandapi3d     ,switch_mode=1,collision_homing=0,collision_cal=0
08:25
M102 S-1

08:27
0.0mm
08:27
M102 S-2

[markniu]

it seems that sensor has not been calibrated. the distance data is 0.0mm after M102 S-2 that is bellow the postion_endstop:1.2mm so it will output triggered.

[Nmorelm]

I've tested sensor on custom printer. It gives same result - 0.0 mm mid-air , nozzle against the bed , so the sensor is 1.2 mm above the bed. Or even with metal ruler against the sensor. Still triggered and still 0.0 mm distance.

[markniu]

did you calibrate the sensor? how about the data after M102 S-5

[Nmorelm]

Ok calibrated with M102 S-6:

18:38
Calibrate Finished!
18:38
823 at 3.9mm
18:38
820 at 3.8mm
18:38
815 at 3.7mm
18:38
812 at 3.6mm
18:38
807 at 3.5mm
18:38
804 at 3.4mm
18:38
797 at 3.3mm
18:38
793 at 3.2mm
18:38
787 at 3.1mm
18:38
780 at 3.0mm
18:38
774 at 2.9mm
18:38
766 at 2.8mm
18:38
759 at 2.7mm
18:38
753 at 2.6mm
18:38
744 at 2.5mm
18:38
737 at 2.4mm
18:38
727 at 2.3mm
18:38
717 at 2.2mm
18:38
706 at 2.1mm
18:38
696 at 2.0mm
18:38
686 at 1.9mm
18:38
672 at 1.8mm
18:38
660 at 1.7mm
18:38
647 at 1.6mm
18:38
632 at 1.5mm
18:38
619 at 1.4mm
18:38
602 at 1.3mm
18:38
586 at 1.2mm
18:38
568 at 1.1mm
18:38
552 at 1.0mm
18:38
532 at 0.9mm
18:38
512 at 0.8mm
18:38
491 at 0.7mm
18:38
471 at 0.6mm
18:38
447 at 0.5mm
18:38
425 at 0.4mm
18:38
401 at 0.3mm
18:38
378 at 0.2mm
18:38
354 at 0.1mm
18:38
333 at 0.0mm
18:38
Please Wait...
18:38
Calibrating, don't power off the printer
18:38
BDsensorVer:V1.2c pandapi3d     ,switch_mode=1,collision_homing=0,collision_cal=0
18:38
M102 S-6

data after M102 S-5:

18:39
823 at 3.9mm
18:39
820 at 3.8mm
18:39
815 at 3.7mm
18:39
812 at 3.6mm
18:39
807 at 3.5mm
18:39
804 at 3.4mm
18:39
797 at 3.3mm
18:39
793 at 3.2mm
18:39
787 at 3.1mm
18:39
780 at 3.0mm
18:39
774 at 2.9mm
18:39
766 at 2.8mm
18:39
759 at 2.7mm
18:39
753 at 2.6mm
18:39
744 at 2.5mm
18:39
737 at 2.4mm
18:39
727 at 2.3mm
18:39
717 at 2.2mm
18:39
706 at 2.1mm
18:39
696 at 2.0mm
18:39
686 at 1.9mm
18:39
672 at 1.8mm
18:39
660 at 1.7mm
18:39
647 at 1.6mm
18:39
632 at 1.5mm
18:39
619 at 1.4mm
18:39
602 at 1.3mm
18:39
586 at 1.2mm
18:39
568 at 1.1mm
18:39
552 at 1.0mm
18:39
532 at 0.9mm
18:39
512 at 0.8mm
18:39
491 at 0.7mm
18:39
471 at 0.6mm
18:39
447 at 0.5mm
18:39
425 at 0.4mm
18:39
401 at 0.3mm
18:39
378 at 0.2mm
18:39
354 at 0.1mm
18:39
333 at 0.0mm
18:39
M102 S-5

[Nmorelm]

Yay!

18:46
x:open y:open z:open
18:46
m119

[Nmorelm]

So i likely to make it bit lower to the bed. But sensor working! Edit: Homing working, but when i trying to do bed mesh , it starting ok , but klipper crashes at the last point with:

20:01
Internal error on command:"BED_MESH_CALIBRATE"
20:01
Klipper state: Shutdown
20:01
probe at 229.994,191.881 is z=-0.030000
20:01
probe at 205.000,191.875 is z=-0.090000
20:01
probe at 180.000,191.875 is z=-0.100000
20:01
probe at 155.000,191.875 is z=-0.110000
20:01
probe at 130.000,191.875 is z=-0.000000
20:01
probe at 105.000,191.875 is z=0.020000
20:01
probe at 80.000,191.875 is z=-0.030000
20:01
probe at 55.000,191.875 is z=0.020000
20:01
probe at 30.000,191.875 is z=-0.160000
20:01
probe at 5.000,191.875 is z=-0.180000
20:01
probe at 5.000,170.775 is z=-0.130000
20:01
probe at 30.000,170.775 is z=-0.080000
20:01
probe at 55.000,170.775 is z=-0.110000
20:01
probe at 80.000,170.775 is z=-0.080000
20:01
probe at 105.000,170.775 is z=0.080000
20:01
probe at 130.000,170.775 is z=0.010000
20:01
probe at 155.000,170.775 is z=-0.110000
20:01
probe at 180.000,170.775 is z=0.040000
20:01
probe at 205.000,170.775 is z=-0.090000
20:01
probe at 229.994,170.769 is z=-0.190000
20:01
probe at 230.000,149.663 is z=-0.080000
20:01
probe at 205.000,149.663 is z=0.020000
20:01
probe at 180.000,149.663 is z=-0.000000
20:01
probe at 155.000,149.663 is z=-0.000000
20:01
probe at 130.000,149.663 is z=-0.010000
20:01
probe at 105.000,149.663 is z=0.020000
20:01
probe at 80.000,149.663 is z=-0.070000
20:01
probe at 55.000,149.663 is z=-0.140000
20:01
probe at 30.000,149.663 is z=-0.130000
20:01
probe at 5.000,149.663 is z=-0.030000
20:01
probe at 5.000,128.550 is z=-0.160000
20:01
probe at 30.000,128.550 is z=-0.160000
20:01
probe at 55.000,128.550 is z=-0.130000
20:01
probe at 80.000,128.550 is z=0.020000
20:01
probe at 105.000,128.550 is z=-0.000000
20:01
probe at 130.000,128.550 is z=-0.020000
20:01
probe at 155.000,128.550 is z=-0.060000
20:01
probe at 180.000,128.550 is z=-0.070000
20:01
probe at 205.000,128.550 is z=-0.070000
20:01
probe at 230.000,128.550 is z=-0.340000
20:01
probe at 230.000,107.438 is z=-0.200000
20:01
probe at 205.000,107.438 is z=-0.090000
20:01
probe at 180.000,107.438 is z=-0.070000
20:01
probe at 155.000,107.438 is z=-0.040000
20:01
probe at 130.000,107.438 is z=-0.010000
20:01
probe at 105.000,107.438 is z=-0.000000
20:01
probe at 80.000,107.438 is z=-0.000000
20:01
probe at 55.000,107.438 is z=0.010000
20:01
probe at 30.000,107.438 is z=-0.120000
20:01
probe at 5.000,107.438 is z=-0.110000
20:01
probe at 5.006,86.331 is z=-0.130000
20:01
probe at 30.000,86.325 is z=-0.040000
20:01
probe at 55.000,86.325 is z=-0.020000
20:01
probe at 80.000,86.325 is z=-0.010000
20:01
probe at 105.000,86.325 is z=-0.000000
20:01
probe at 130.000,86.325 is z=-0.020000
20:01
probe at 155.000,86.325 is z=-0.070000
20:01
probe at 180.000,86.325 is z=-0.090000
20:01
probe at 205.000,86.325 is z=-0.100000
20:01
probe at 230.000,86.325 is z=-0.440000
20:01
probe at 230.000,65.225 is z=-0.170000
20:01
probe at 205.000,65.225 is z=-0.120000
20:01
probe at 180.000,65.225 is z=-0.110000
20:01
probe at 155.000,65.225 is z=-0.090000
20:01
probe at 130.000,65.225 is z=-0.040000
20:01
probe at 105.000,65.225 is z=-0.010000
20:01
probe at 80.000,65.225 is z=-0.030000
20:01
probe at 55.000,65.225 is z=-0.010000
20:01
probe at 30.000,65.225 is z=-0.040000
20:01
probe at 5.006,65.219 is z=-0.110000
20:01
probe at 5.000,44.113 is z=-0.240000
20:01
probe at 30.000,44.113 is z=-0.220000
20:01
probe at 55.000,44.113 is z=-0.060000
20:01
probe at 80.000,44.113 is z=-0.080000
20:01
probe at 105.000,44.113 is z=-0.070000
20:01
probe at 130.000,44.113 is z=-0.100000
20:01
probe at 155.000,44.113 is z=-0.120000
20:01
probe at 180.000,44.113 is z=-0.150000
20:01
probe at 205.000,44.113 is z=-0.140000
20:01
probe at 230.000,44.113 is z=-0.490000
20:01
probe at 230.000,23.000 is z=-0.300000
20:01
probe at 205.000,23.000 is z=-0.130000
20:01
probe at 180.000,23.000 is z=-0.160000
20:01
probe at 155.000,23.000 is z=-0.120000
20:01
probe at 130.000,23.000 is z=-0.100000
20:01
probe at 105.000,23.000 is z=-0.100000
20:01
probe at 80.000,23.000 is z=-0.110000
20:01
probe at 55.000,23.000 is z=-0.090000
20:01
probe at 30.000,23.000 is z=-0.240000
20:01
probe at 5.000,23.000 is z=-0.200000
20:01
BED_MESH_CALIBRATE PROFILE="default"

[markniu]

there should be more details in the klippy.log, or you can attach klippy.log file here

[Nmorelm]

klippy.log That my klippy.log

[Nmorelm]

Also if i comment out no_stop_probe: then klipper not crash at the bed mesh calibrate end, but gives an error: Bed Distance Sensor, out of range.:3.90

Ok, NVM, i got it sorted with both no_stop_probe commented and uncommented. It was my negative probe offset. Please close the issue.