int t1 = 19;
int e1 = 16;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(t1, OUTPUT);
  pinMode(e1, INPUT);


  Serial.println("Hello, Idly!");
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(t1, HIGH);
  delay(500);
  digitalWrite(t1, LOW);
  int input = pulseIn(e1,HIGH);
  int output = input*0.034/2;
  Serial.println(output);
  delay(10); // this speeds up the simulation
}