/*
HC-SR Ultrasonic Sensor Example.

Turn the LED on when an object is within 100cm range.

copyright (c) 2021,Uri shaked
*/

#define ECHO_PIN 2
#define TRIG_PIN 3

void setup(){
  Serial.begin(115200);
  pinMode(12, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
}