byte seven_seg_digits[10][7] = { { 1,1,1,1,1,1,0 },  // = 0
   { 0,1,1,0,0,0,0 },  // = 1
   { 1,1,0,1,1,0,1 },  // = 2
   { 1,1,1,1,0,0,1 },  // = 3
   { 0,1,1,0,0,1,1 },  // = 4
   { 1,0,1,1,0,1,1 },  // = 5
   { 1,0,1,1,1,1,1 },  // = 6
   { 1,1,1,0,0,0,0 },  // = 7
   { 1,1,1,1,1,1,1 },  // = 8
   { 1,1,1,0,0,1,1 }   // = 9
};

void setup() {
  // put your setup code here, to run once:
  analogReference(INTERNAL);
  for(byte i=0;i <= 13;i++) pinMode(i,OUTPUT);

  pinMode(A5,OUTPUT);
  pinMode(A4,OUTPUT);
}

void loop() {
  int reading = analogRead(A0);
  reading = map(reading,0,1023,0,112);

  if(reading < 25) digitalWrite(A5,HIGH);
  else if(reading > 30) digitalWrite(A4,HIGH);
  else {
    digitalWrite(A5,LOW);
    digitalWrite(A4,LOW);
  }

  sevenSegWrite(reading % 10,0);
  sevenSegWrite(reading / 10,7);4

}

void sevenSegWrite(byte digit,byte sPin) {
  for (byte i = 0; i < 7; ++i) {
    digitalWrite(sPin+i, !seven_seg_digits[digit][i]);
  }
}