A24 arduino demo source code-04-read K-type thermocouple by MAX31855

Code:
#include <my_max31855.h>

#include <arduino.h>

#include <EasyPCF8575.h>

#include "HardwareSerial.h"



EasyPCF8575 pcf8575_dev;

HardwareSerial my485Serial(2);

MY_MAX31855_Class mx31855_dev1;

MY_MAX31855_Class mx31855_dev2;

MY_MAX31855_Class mx31855_dev3;



int32_t result_value1 = 0;

int32_t result_value2 = 0;

int32_t result_value3 = 0;

void setup() {

  

  my485Serial.begin(38400,SERIAL_8N1,32,33);

  while(my485Serial.read()>0){}



  pcf8575_dev.startI2C(16,5,0x21);

  

  my485Serial.print("try Find8575:addr is ");

  my485Serial.print(pcf8575_dev.findPCFaddr(),HEX);



  mx31855_dev1.begin(1,12,14,false);  //1 is CH1

  mx31855_dev2.begin(2,12,14,false);  //2 is CH2

  mx31855_dev3.begin(3,12,14,false);  //3 is CH3



}



void loop() {

 result_value1 = mx31855_dev1.readProbe();

 result_value2 = mx31855_dev2.readProbe();

 result_value3 = mx31855_dev3.readProbe();

 my485Serial.printf("current1 temp:%d C||current2 temp:%d C||current3 temp:%d C\n",result_value1/1000,result_value2/1000,result_value3/1000);

 delay(1000);

}