#include "SoftwareSerial.h" // to communicate in serial

const int LED = 8;
const int TX = A0;
const int RX = A1;

SoftwareSerial mySerial (RX, TX);

boolean ledState = false; //to declare the state of the LED, and false because it needs a default state value

void setup() {
  // put your setup code here, to run once:
  pinMode(LED, OUTPUT);
  pinMode(TX, OUTPUT);
  pinMode(RX, INPUT);

  mySerial.begin(9600); // bluetooth serial
}

void loop() {
  // put your main code here, to run repeatedly:
  if (mySerial.available()){
    int serialValue = mySerial.read();
    if (serialValue == '1'){
       mySerial.println("led ON");
       digitalWrite(LED, HIGH);
    }
    else{
     mySerial.println("led OFF");
     digitalWrite(LED, LOW);
    }
    mySerial.println("je suis là");
  }
}