blink

//code:by mahesh.s
/*
police sound and Blink.......
Turns on an LED on for one second, then off for one second, repeatedly. This example code is in the public domain.
*/

// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;
int led2=12;
// the setup routine runs once when you press reset:
void setup() { // initialize the digital pin as an output.
pinMode(led, OUTPUT); pinMode(led2, OUTPUT);

//connect the buzer in pin 12 or 13
}

// the loop routine runs over and over again forever:
void loop() {
digitalWrite(led, HIGH);                          // turn the LED on (HIGH is the voltage level)
delay(100);                       // wait for a second
digitalWrite(led2, HIGH);                      // turn the LED on (HIGH is the voltage level)
delay(100);                       // wait for a second

digitalWrite(led,LOW);                      // turn the LED off by making the voltage LOW
delay(100);                      // wait for a second
digitalWrite(led2,LOW);                          // turn the LED off by making the voltage LOW
delay(100);                    // wait for a second
}