void setup() {
  // put your setup code here, to run once:
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(A1, INPUT);
digitalWrite(3,1);
digitalWrite(4,0);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
    int pt = analogRead(A1);
  int dt = 0;
  for ( dt = 0; dt<=200; dt++){
digitalWrite(4,1);
delay(pt);
digitalWrite(4,0);
delay(pt);
Serial.println(pt);
Serial.println(dt);

if(dt==0){delay(2000);}}

}