#define Serial if(DEBUG)Serial
#define DEBUG true
#define LED1 7
#define LED2 6
#define LED3 5
#define DIN 4
#define AIN A0

int dRead;
int aRead;
int tStart = 0;
int tStop = 0;
int led;
bool push = HIGH;

int debugMillis = 0;

void setup() 
{
  Serial.begin(9600);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(DIN, INPUT_PULLUP);
  pinMode(AIN, INPUT);
}

void loop()
{
  if(digitalRead(DIN)==LOW && push==HIGH)
  {
    tStart = millis();
    push = LOW;
  }
  if(digitalRead(DIN)==HIGH && push==LOW)
  {
    tStop = millis();
    push = HIGH;
  }

  if(millis() >= debugMillis + 1000)
  {
    if(digitalRead(DIN)==LOW)
    {
      digitalWrite(LED1, LOW);
      digitalWrite(LED2, LOW);
      digitalWrite(LED3, LOW);
      if(analogRead(AIN)<333)
      {
        led = 7;
      }
      else if(analogRead(AIN)>666)
      {
        led = 5;
      }
      else
      {
        led = 6;
      }
      digitalWrite(led, HIGH);
    }
    else
    {
      digitalWrite(LED1, LOW);
      digitalWrite(LED2, LOW);
      digitalWrite(LED3, LOW);
    }


    Serial.print("Button state: ");
    if(digitalRead(DIN)==LOW)
    {
      Serial.println("LOW");
    } else
    {
      Serial.println("HIGH");
    }
    Serial.print("Analog value: ");
    Serial.println(analogRead(AIN));
    debugMillis = millis();
  }

}