// After running the simulator, click on the DS18B20 chip to change the temperature
// Chip by bonnyr, source code: https://github.com/bonnyr/wokwi-ds1820-custom-chip/

#include <OneWire.h>
#include <DallasTemperature.h>

#define speed1 12
#define speed2 11
#define speed3 10
#define speed4 9

OneWire oneWire(A0);
DallasTemperature sensor(&oneWire);

void setup(void) {
  pinMode(speed1,OUTPUT);
  pinMode(speed2,OUTPUT);
  pinMode(speed3,OUTPUT);
  pinMode(speed4,OUTPUT);
  Serial.begin(115200);
  delay(2);
  sensor.begin();
  delay(20);
}

void loop(void) {
  sensor.requestTemperatures();
  Serial.print("Temperature is: ");
  delay(10);
  float temp = sensor.getTempCByIndex(0);
  Serial.println(temp);
  if(temp<30)fanOFF();
  else if(temp< 35)fanSpeed1();
  else if(temp<40)fanSpeed2();
  else if(temp<45)fanSpeed3();
  else fanSpeed4();

  delay(1000);
}


void fanOFF(){
  digitalWrite(speed1,LOW);
  digitalWrite(speed2,LOW);
  digitalWrite(speed3,LOW);
  digitalWrite(speed4,LOW);
}

void fanSpeed1(){
  fanOFF();
  digitalWrite(speed1,HIGH);
}

void fanSpeed2(){
  fanOFF();
  digitalWrite(speed2,HIGH);
}

void fanSpeed3(){
  fanOFF();
  digitalWrite(speed3,HIGH);
}

void fanSpeed4(){
  fanOFF();
  digitalWrite(speed4,HIGH);
}