Klipper w/ PT100 amplifier, wrong temp about fysetc-spider

[Thelm76]

I managed to get correct measurements using "PT100 INA286" and removing this pullup resistor from the board (and the filter capacitor but I think it's not mandatory) :

weirdly, the "adc_voltage" in klipper should remain configured to 5V to get the proper value
my hypothesis is that the stm32 is reading the value between 0-3.3V and amp voltage is 3.3V so 3.3V/3.3V, but klipper expects a value betwene 0-5V so adc_voltage should remain to 5V to get this 1:1 ratio.

Further measurements will be needed just to be sure the sensor is properly calibrated

[Thelm76]

By the way, the amplifier should not be connected to a pull-up pin, so @GerogeFu I have a suggestion, maybe for V1.2 :
you should add a way to easily deactivate these pull-up resitors (little switch, or unweldable PCB track) in order to easily put an amp board for pt100