#include "Keypad.h"
int i = 0;
int x= 0;
int val;
int tempPin = 0;
int t;
String temp = "";
String mb;

const byte ROWS = 4;
const byte COLS = 4;
char keys[ROWS][COLS] = {
  {'1','2','3' , 'A'},
  {'4','5','6' , 'B'},
  {'7','8','9' , 'C'},
  {'*','0','#' , 'D'}
};
byte rowPins[ROWS] = {13, 12, 6, 5};  //Piny, do których podłączamy wyprowadzenia od rzędów
byte colPins[COLS] = {4, 3, 2 , 1}; //Piny, do których kolumn wyprowadzenia od rzędów

Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

void setup()
{
pinMode(7, OUTPUT);
digitalWrite(7, HIGH);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
Serial.begin(9600);
}
void loop()
{
  char key = keypad.getKey();
  if(key == "1")
  {
    mb=key;
  }
val = analogRead(tempPin);
float mv = ( val/1024.0)*5000;
float cel = mv/10;
float farh = (cel*9)/5 + 32;

//Serial.print(cel);
//Serial.print("*C");
//Serial.println();


digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11,LOW);
/*f(Serial.available() > 0) {

    temp = Serial.readStringUntil('\n');


Serial.println(t);
}*/
Serial.println(mb);
int t=(mb.toInt());
Serial.println(t);
Serial.println(cel);
if (cel>t){

for (; i<100; i++) {
    delay(2);
    digitalWrite(11, HIGH);
    digitalWrite(10, LOW);
    digitalWrite(9, LOW);
    digitalWrite(8, LOW);
    delay(2);
    digitalWrite(11, LOW);
    digitalWrite(10, HIGH);
    digitalWrite(9, LOW);
    digitalWrite(8, LOW);
    delay(2);
    digitalWrite(11, LOW);
    digitalWrite(10, LOW);
    digitalWrite(9, HIGH);
    digitalWrite(8, LOW);
    delay(2);
    digitalWrite(11, LOW);
    digitalWrite(10, LOW);
    digitalWrite(9, LOW);
    digitalWrite(8, HIGH);
    }
    i=0;
}

if (cel<t){
  for (; i<100; i++){
digitalWrite(8, HIGH);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11,LOW);
delay(2);
digitalWrite(8, LOW);
digitalWrite(9, HIGH);
digitalWrite(10, LOW);
digitalWrite(11,LOW);
delay(2);
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, HIGH);
digitalWrite(11,LOW);
delay(2);
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11,HIGH);
delay(2);
  }
i=0;
}

}//loop