const int inputpin=4;

void setup() {
  // put your setup code here, to run once:
  pinMode(inputpin, INPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
unsigned long width= pulseIn(inputpin, LOW, 100000);
unsigned long out=width/1000;
Serial.print(width);
Serial.print(", ");
Serial.print(out);
Serial.println("");
delay(100);
}