I am using PT100 (3 Wire) to measure the temperature with Arduino Uno and MAX31865. I have connected everything perfectly. Configuration in the code i am using is :
And the output is:
RTD value: 0 Ratio = 0.00000000 Resistance = 0.00000000 Temperature = -242.02
I am testing it in a room temperature.
My question is , is there any settings or calibration that i need to do, or any other way to test the PT100 sensor, because the temperature is showing correct readings ?