TXPlore Day 12, Learning By Doing 5 - mini project 2 - persistent button press

Day 12, Learning By Doing 5 - mini project 2 - persistent button press

byte BUTTON_PIN = 7;
byte LED_PIN = 6;
bool newState = LOW;
bool currentState = LOW;

void setup() {
  // put your setup code here, to run once:
  pinMode(BUTTON_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  while (digitalRead(BUTTON_PIN) == HIGH) { // If button is pressed
    newState = !currentState; // change the newState to the opposite of currentState
    digitalWrite(LED_PIN, newState); // and write the newState (HIGH where it was LOW, LOW where it was HIGH)
  }
  currentState = newState; // This assignment will only be different when button is depressed since state was changed only inside the while loop
  digitalWrite(LED_PIN, currentState); // Keep displaying at the currentState
}