int SPin = A0;   
int LSensor = 0;
int MOTOR=8;
int lechuga =0;
void setup() {
Serial.begin(9600);
pinMode(MOTOR,OUTPUT);
}
void loop() {
LSensor = analogRead(SPin);
Serial.print( LSensor );
Serial.print( "   " );
Serial.println( lechuga );
lechuga = 1100 - LSensor;
  digitalWrite(MOTOR,LOW);
  delay(LSensor);
  digitalWrite(MOTOR,HIGH);
  delay(lechuga);
}