Connect and setup BTT smart filament sensor to Sovol SV08

[Ibedwl]

I connected the motion/tangle sensor to the PA9 pin on the toolhead and runout to the stock port on the mainboard. Then I added the following code to my printer.cfg

[filament_motion_sensor encoder_sensor]
switch_pin: ^!extra_mcu:PA9 # motion sensor IO is ^!extra_mcu:PA9
detection_length: 4.88 # accuracy of motion sensor 2.88mm
extruder: extruder
pause_on_runout: True
runout_gcode:
#PAUSE # [pause_resume] is required in printer.cfg
M117 Filament encoder runout
insert_gcode:
M117 Filament encoder inserted

You will need to change the plug over to a jst 1.25mm

Black = Yellow
Green = White

Amazon.com: ZSDZFYLLK 10 Pairs JST 1.25mm 4 Pin Micro Electrical Male and Female Connector Plug with 100mm 26AWG Cable Wires JST Connectors Kit : Electronics

Now both sensors work as intended.