PT100 MAX31865 Temperature Sensor

Isn’t the 3v3 pin on the sensor meant as output and shouldn’t the sensor by powered via Vin (from 3v3 or Vin on the Photon)?

Also your jumpers are soldered for 3-wire but I can’t tell whether the 2/4 bridge has been correctly cut (doesn’t really look like it to me).

1 Like