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BBT SB2209 PT1000 problem


New member

I recently built a Voron 2.4 350mm from a kit.

I added some upgrades as I was building it, including a Voron TAP a BigTreeTech (BTT) SKR SB2209 with CANbus. I also upgraded to a stealthburner extruder and used an old Dragon hotend. It's been running okay, but I feel the hotend has been running too hot. Therefore, I upgraded to a Rapodo V2 HF hotend with a PT1000.

I'm having a hard time getting the new PT1000 to work; I get the error message "MCU 'EBBCan' shutdown: ADC out of range." I did change the sensor_type to PT1000:

sensor_type: PT1000
sensor_pin: EBBCan:PA4
#spi_bus: spi1
#rtd_nominal_r: 100
#rtd_reference_r: 430
#rtd_num_of_wires: 2

The switches on the SB2204 are set as per the GitHub directions, and the 2-wire PT1000 is plugged into the middle 2 pins of the 4-pin header.

The settings before I had were:

sensor_type: MAX3186
sensor_pin: EBBCan:PA4
min_temp: 0
max_temp: 320
spi_bus: spi1
rtd_nominal_r: 100
rtd_reference_r: 430
rtd_num_of_wires: 2

I appreciate any guidance you can provide in resolving this issue.