so, first and foremost, in this link you can download the user manual and some more stuff for the board:
https://bigtree-tech.com/pages/download

First check if you have the DIP switches in the right configuration, you'll find a table on the manual with the configurations for the different sensors, page 19.
Secondly, the board has an integrated MAX31865 temp sensor amplifier, that's what you actually use to communicate with the sensor, so, the communication method is pretty much the same as with those, adapter drives you can fit into the stepper slots, except this one is already embedded into the board.

The configuration I used is this one:

[extruder]
sensor_type: MAX31865
sensor_pin: PF8
spi_software_sclk_pin: PA5
spi_software_mosi_pin: PA7
spi_software_miso_pin: PA6


rtd_nominal_r: 100 # check manual
rtd_num_of_wires: 2 # set this to the number of wires your sensor has, mine has only 2
rtd_reference_r: 430 # check manual
rtd_use_50Hz_filter: True # check manual


max_temp: <set your max temp here>

PF8 is the pin name to the port you mentioned, the J47
Those spi pins, well I have no idea where they come from, but it worked for me
For next 4 items, after the spi config stuff, you can find an explanation for it, also in the manual.
Don't forget to set your max temp for the heater.

If your sensor is a 2 wire sensor you just connect the wires to the 2 middle pins in the J47 connector.
If it's a 3 wire there's one more thing you've gotta do, but you'll also find that in the manual.

Hope it works for you too