/* Bluetooth_led is to control a led from an application */

#define led 7                                    // pins affectation
#define RX 2
#define TX 3
                             
word received_byte;                             // word that receive emitted data

// Création d'une liaison série 
#include <SoftwareSerial.h>                  
SoftwareSerial bluetooth(RX,TX);             
 
void setup() 
{
Serial.begin(9600);                          // serial initialisation @ 9600 bauds
bluetooth.begin(9600);                       // Bluetooth serial connexion initialisation @ 9600 bauds
pinMode(led,OUTPUT) ;                        // led pin as output
}

void loop() {
ReceiveData();                                // call ReceiveData() function
if (received_byte==49)                        // if received byte is 1 (49 is ASCII code for 1)
    {
    Serial.println("Led ON");
    digitalWrite(led,HIGH);
    }    
if (received_byte==48)                        // if received byte is 0 (48 is ASCII code for 0)
    {
     Serial.println("Led OFF");
     digitalWrite(led,LOW);
    }
delay(200);
    }

//procédure qui lit les trames de la tablette
void ReceiveData()
{
    if (bluetooth.available()) 
    {
    received_byte=bluetooth.read();
    }
}