day 4 old

int readPin = A5;
int lightPin = 7;
int lightState = 0;
int dt = 100;
int buttonPinNew;
int buttonPinOld = 1;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(readPin, INPUT);
  pinMode(lightPin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  buttonPinNew = digitalRead(readPin);
  if (buttonPinOld == 0 && buttonPinNew == 1)
  {
    if (lightState == 0)
    {
      while(1)
      {
          digitalWrite(lightPin, HIGH);
          delay(1000);
          digitalWrite(lightPin, LOW);
          delay(1000);
          //lightState = 1;
          buttonPinNew = digitalRead(readPin);
          if (buttonPinOld == 0 && buttonPinNew == 1)
          buttonPinOld = buttonPinNew;
      }
    }
    else
    {
      digitalWrite(lightPin, LOW);
      lightState = 0;
    }
  }
  buttonPinOld = buttonPinNew;
  //delay(dt);


}