#include <NewPing.h>
#define t 13
#define e 12
#define m 401
NewPing ir(t,e,m);
void setup() {
  // put your setup code here, to run once:
    pinMode(4, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
    unsigned int d = ir.ping_cm();
    if(d<=10)
        digitalWrite(4, HIGH);
    else
        digitalWrite(4, LOW);
}