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  Modul 2 relay + MAX6675 Switch control themperature
  Written by OT 24/07/2021
  --- thermocuple connection VCC -5V; GRD -GRD; pin SO -4; pin CS -5; pin SCK -6; 
  --- RELAY connection - pin -22,23;
  --- timer (millis)
*/

#include "max6675.h"

int thermoDO = 4;    
int thermoCS = 5;    
int thermoCLK = 6;                        

MAX6675 thermocouple(thermoCLK, thermoCS, thermoDO);

#define PIN_R1 22                  // pin that controls the RELAY 1
#define PIN_R2 23                  // pin that controls the RELAY 2

unsigned long currentTime;         // variable for timer MAX chip to stabilise
unsigned long currentTime2;        // variable for timer Relay1
unsigned long currentTime3;        // variable for timer Relay2

bool RELAYState=0;                 // variable relay 1
bool RELAYState2=0;                // variable relay 2

void setup() 
{
  Serial.begin(9600);
  pinMode(PIN_R1, OUTPUT);          // declare pin 22 as output:
  pinMode(PIN_R2, OUTPUT);          // declare pin 23 as output:

 Serial.println("Temperature");      // display of temperature measurement, wait for MAX chip to stabilize  
                                  
  if (millis() - currentTime > 5000)   
  {
    currentTime = millis();
  }	

}

void loop() {
                                       // basic test, print the current temp

  Serial.print("C = ");
  Serial.println(thermocouple.readCelsius());
  
  if(millis() - currentTime2 > 5000)   //  Checking the time for the relay 1 
  {
    currentTime2 = millis();           //  Change the state of the relay1 to the opposite
	  RELAYState=!RELAYState
	  digitalWrite(PIN_R1, RELAYState);
   
  } 

  if(millis() - currentTime3 > 8000)   //  Checking the time for the relay 2 
  {
    currentTime3 = millis();           //  Change the state of the relay2 to the opposite
	  RELAYState2=!RELAYState2
	  digitalWrite(PIN_R2, RELAYState2);
    
  }   
	                                   // if temprature goes above 480.0C, turn the relay OFF
  if (thermocouple.readCelsius() < 480.00) 
  {
      digitalWrite(PIN_R1, HIGH);          // turn the Relay1 Switch ON 
	    digitalWrite(PIN_R2, HIGH);          // turn the Relay2 Switch ON 
  } else { 
      digitalWrite(PIN_R1, LOW);           // turn the Relay1 Switch OFF
      digitalWrite(PIN_R2, LOW);           // turn the Relay2 Switch OFF 	  
  }
     
}

E:ArduinoModul___TC_R millisModul___TempControlModul___TempControl.ino: In function 'void loop()':
Modul___TempControl:52:4: error: expected ';' before 'digitalWrite'
    digitalWrite(PIN_R1, RELAYState);
    ^~~~~~~~~~~~
Modul___TempControl:60:4: error: expected ';' before 'digitalWrite'
    digitalWrite(PIN_R2, RELAYState2);
    ^~~~~~~~~~~~
exit status 1
expected ';' before 'digitalWrite'