The order of sensor connection does not matter. One wire goes to F+, the other to F-. Have a look to https://learn.adafruit.com/adafruit-max ... ing-config
This documentation goes to the other question: " This is not an Adafruit MAX31865, but a clone from what I understand, is this my issue?" Adafruit is putting a lot of effort in tutorials, a well organized web site, libraries, provides schema for their boards. Generally a good idea to honor this effort and buy from their store.
The wrong readings could be a result of the mismatch PT1000 with a board designed for a PT100. Looks as if on your board is a Rref=430 Ohm. Good for a PT100. Temporarily use a resistor with 100...150 Ohm instead of the sensor. Expect prox 0°C with 100 Ohm, 131°C with 150 Ohm. See https://www.omega.de/temperature/Z/pdf/z252-254-de.pdf
Check the connections to the board. Reduce SPI clock to 1MHz. You need to use the CS-pin, will not work without it (1 usually, 0 before mesurement, reset to 1 after measurement).
This documentation goes to the other question: " This is not an Adafruit MAX31865, but a clone from what I understand, is this my issue?" Adafruit is putting a lot of effort in tutorials, a well organized web site, libraries, provides schema for their boards. Generally a good idea to honor this effort and buy from their store.
The wrong readings could be a result of the mismatch PT1000 with a board designed for a PT100. Looks as if on your board is a Rref=430 Ohm. Good for a PT100. Temporarily use a resistor with 100...150 Ohm instead of the sensor. Expect prox 0°C with 100 Ohm, 131°C with 150 Ohm. See https://www.omega.de/temperature/Z/pdf/z252-254-de.pdf
Check the connections to the board. Reduce SPI clock to 1MHz. You need to use the CS-pin, will not work without it (1 usually, 0 before mesurement, reset to 1 after measurement).
Statistics: Posted by ghp — Sun Nov 24, 2024 5:20 pm