int value = 367;
void setup(){
pinMode(7,OUTPUT);
pinMode(8,OUTPUT);
Serial.begin(9600);
}
void loop(){
  delay(10);
  if (Serial.available() > 0)
  {
    value = 0;
  while (Serial.available() > 0)
  {
    value *= 10;
    value += (Serial.read() - '0');
    delay(1);
  }
  }
  int var = analogRead(0);
  Serial.print(value);
  Serial.print("..");
  Serial.println(var);

 // Serial.println(var);
   int val = map(value,0,100,497,900);
   if(val < 901&&val>498){
     if(var > val-2){
      digitalWrite(7,LOW);
      digitalWrite(8,HIGH);
    }
    if(var < val+2){
      digitalWrite(7,HIGH);
      digitalWrite(8,LOW);
    }
    if(var < val+2 && var > val-2){
      digitalWrite(7,LOW);
      digitalWrite(8,LOW);
    }
  }
}