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Fix MAX31865 on SPI (PT100/1000) support (#20074)

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This commit is contained in:
JoAnn Manges
2020-11-11 16:52:35 -05:00
committed by Scott Lahteine
parent 012745b218
commit 02c3c314fe
7 changed files with 128 additions and 100 deletions
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10
Marlin/Configuration.h
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@ -436,11 +436,11 @@
#define DUMMY_THERMISTOR_998_VALUE 25
#define DUMMY_THERMISTOR_999_VALUE 100
// Resistor values when using a MAX31865 (sensor -5)
// Sensor value is typically 100 (PT100) or 1000 (PT1000)
// Calibration value is typically 430 ohm for AdaFruit PT100 modules and 4300 ohm for AdaFruit PT1000 modules.
//#define MAX31865_SENSOR_OHMS 100
//#define MAX31865_CALIBRATION_OHMS 430
// Resistor values when using MAX31865 sensors (-5) on TEMP_SENSOR_0 / 1
//#define MAX31865_SENSOR_OHMS_0 100 // (Ω) Typically 100 or 1000 (PT100 or PT1000)
//#define MAX31865_CALIBRATION_OHMS_0 430 // (Ω) Typically 430 for AdaFruit PT100; 4300 for AdaFruit PT1000
//#define MAX31865_SENSOR_OHMS_1 100
//#define MAX31865_CALIBRATION_OHMS_1 430
// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
// from the two sensors differ too much the print will be aborted.