int boutonETAT = 0; //THIS WILL SAVE THE STATE OF THE BUTTON
const int bouton = A3;     // THIS IS THE PINOUT OF THE BUTTON
const int led =  A7;      // THIS IS THE PINOUT OF THE LED
       

void setup() {
  pinMode(led, OUTPUT);//THE LED WILL RECEIVE A VOLTAGE FROM THE PINOUT SO IT'S AN OUTPUT
 
  pinMode(bouton, INPUT);//the ATTINY WILL READ THE STATE OF THE BUTTON SO IT'S AN INPUT
}

void loop() {

  
  boutonETAT = digitalRead(bouton);// THIS WILL READ THE STATE OF THE BUTTON AN SAVE IT INTO THE VARIABLE BOUTON ETAT

  
  if (boutonETAT == HIGH) { // THIS WILL VERIFY IF THE BUTTON IS PRESSED?

    digitalWrite(led, HIGH); //THE LED WILL START TO GLOW
  } 
  
  
  else {// IN ANY OTHER CASE.
    digitalWrite(led, LOW);// THE LED WILL STAY OFF
  }
}