int val = 0;
int i = 0;
int vumetre[] = {5, 15, 20, 35, 45, 70, 90, 100};

void setup() {
Serial.begin(9600);
pinMode(A0, INPUT);
for (i = 6; i<= 13; i++) {
  pinMode(i, OUTPUT); }
}

void loop() {
  val = analogRead(A0);
  Serial.println(val);

  for ( i = 0; i<= 7; i++ ) {
    if ( vumetre[i] < val)
    digitalWrite (i + 6 , HIGH);
  }
  delay(20);
  for ( i = 0; i <= 7; i++ ) {
    digitalWrite (i + 6 , LOW);
  }
}