Arduino mio

//programma: sensor_PIR

//******* pin ********

//******* declare ******** 
const int pin_red_led=13;//pin of _red_led
const int pin_altoparlante=0;//the longer leg is the positive and goes to pin, the other to GND
const int pin_sensor_PIR=A0;//pin sensorgenericosensore
int X=0;//declares the variable

//********** setup **********  
   void setup(){ 
	
	pinMode(pin_red_led,OUTPUT);  
	pinMode(pin_altoparlante,OUTPUT); 
	pinMode(pin_sensor_PIR,INPUT); 
	 Serial.begin(9600);      // Initialize the serial  
}

//********** loop ********** 
 void loop() { 
	
	X=analogRead(pin_sensor_PIR); // reads the sensor _sensor_PIR
	Serial.print("valore di...");//writes on the serial 
	Serial.println(X);//writes on the serial 
	if(X>100){ 
	digitalWrite(pin_red_led,HIGH); // HIGH/LOW is the voltage 5V/0V)
	tone(pin_altoparlante,262,500);   
	delay(1000);//attendi 
	digitalWrite(pin_red_led,LOW); // HIGH/LOW is the voltage 5V/0V)
	tone(pin_altoparlante,392,500);   
	delay(1000);//attendi 
		}

};//end loop

//powered by "Arduinomio" (C) 
//www.mastrohora.it

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