# 閃燈

void setup()
{
  pinMode( D4 , OUTPUT);
}

void loop()
{
  digitalWrite(D4 , LOW);
  delay( 1000 );
  digitalWrite(D4 , HIGH);
  delay( 1000 );
}

# 超音波

#include <Ultrasonic2.h>

int Range = 0 ;
Ultrasonic2 monUltrasonic_pin5(5);

void setup()
{
  Serial.begin(9600);
}

void loop()
{
  Range = monUltrasonic_pin5.mesurer(6) ;
  Serial.print("Distance=");
  Serial.print(Range);
  Serial.print(" ");
  Serial.println();
  delay( 200 );
}