#define Btn_N1 2 // A0
#define Btn_N2 3 // A1
void gestionN1();
void gestionN2();
volatile int N1;
volatile int N2;
bool changement=false;
void setup() {
  Serial.begin(115200);
  pinMode(Btn_N1, INPUT_PULLUP);
  pinMode(Btn_N2, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(Btn_N1), gestionN1, FALLING);
  attachInterrupt(digitalPinToInterrupt(Btn_N2), gestionN2, FALLING);
  Serial.println("START");
}
void loop() {
  if (changement)
  {
  int res=N1+N2;
  Serial.print("la somme de ");
  Serial.print(N1);
  Serial.print(" et  ");
  Serial.print(N2);
  Serial.print(" est  ");
  Serial.println(res);
  changement=false;
  }

}

void gestionN1()
{
  N1 =analogRead(A0);
  changement=true;

}
void gestionN2()
{
  N2 =analogRead(A1);
  changement=true;
}