ertec mini pot dig 2 led interval

#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 3
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress thermometer = {
  0x28, 0xFF, 0x26, 0xA7, 0x35, 0x16, 0x4, 0xCF };

unsigned long interval1 = 2000;
unsigned long interval2 = 6000; // tuleb arvestada, et interval2 tegelikuks
unsigned long prevTime = 0;    //pikkuseks jaab interval2 - interval1
unsigned long curTime;
int potPin = A0;
float tempC;
const int kollaPin = 4;
const int siniPin = 6;

int kollaState = LOW;
int siniState = LOW;

int val = 0;


void setup()
{
  pinMode(kollaPin, OUTPUT);
  pinMode(siniPin, OUTPUT);


  Serial.begin(9600);
  sensors.begin();
  sensors.setResolution(thermometer, 12);
}
void printlnTemperature(DeviceAddress deviceAddress) {
  tempC = sensors.getTempC(deviceAddress);

  Serial.println(tempC);

  val = analogRead(potPin);

  Serial.print("setTemp:  ");

  Serial.println(val*0.065+5);




}



void loop(){
  curTime = millis();

  sensors.requestTemperatures();
  Serial.print("Temperature is: ");
  printlnTemperature(thermometer);
  Serial.print("\n\r");
  delay(1);
  //kontrollitakse, et kui temp erinevus ei ületa 1 kraadi siis ledid madalaks
  if (val*0.065+5 - tempC <= 1 > 0)  {
    digitalWrite(6, LOW);
    digitalWrite(4, LOW);
  }

  //could down
  if (val*0.065+5 + 1 < tempC) {

    if(curTime - prevTime < interval1) {
      digitalWrite(6, LOW);
      digitalWrite(4, HIGH);
      delay(10);
    }
    if(curTime - prevTime >= interval1) {
      digitalWrite(4, LOW);
    }
    if(curTime - prevTime > interval2) { //peale teist intervali voib ka led
      // digitalWrite(4, HIGH); // korgeks panna, kui progega edasi minna
      prevTime = curTime;
    }
  }


  //warm up

  if(val*0.065+5 -1 > tempC) {

    if(curTime - prevTime < interval1) {
      digitalWrite(4, LOW);
      digitalWrite(6, HIGH);
      delay(10);
    }
    if(curTime - prevTime >= interval1) {
      digitalWrite(6, LOW);
    }
    if(curTime - prevTime > interval2) { //peale teist intervali voib ka led
      //digitalWrite(6, HIGH); // korgeks panna, kui progega edasi minna
      prevTime = curTime;
    }
  }
}