indicator.ino

//LAST UPDATION 4 october 2020
#include <EEPROM.h>
int pin = 2; //define interrupt pin to 2
volatile int state = LOW;
int L1 = 8;
int L2 = 9;
int buttonPin = 6;
int p = 0;
int buttonState = 0;
int lastButtonState = 0;

void setup() {

  attachInterrupt(digitalPinToInterrupt(pin), buttonread, FALLING);
  pinMode(L1, OUTPUT);
  pinMode(L2, OUTPUT);

  pinMode(buttonPin, INPUT);
  p = EEPROM.read(0);
  if (p < 0 || p > 8)
  {
    p = 0;
    EEPROM.update(0, p);
    delay(1000);
  }
}

void loop()

{
  if (p == 1)  //both on
  {
    digitalWrite(L1, 1);
    digitalWrite(L2, 1);
    delay(10);
  }
  if (p == 2)// blinking both with 500ms delay
  {
    digitalWrite(L1, 0);
    digitalWrite(L2, 0);
    delay(500);
    digitalWrite(L1, 1);
    digitalWrite(L2, 1);
    delay(500);
  }

  if (p == 3) // blinking both with 100ms delay
  {
    digitalWrite(L1, 0);
    digitalWrite(L2, 0);
    delay(100);
    digitalWrite(L1, 1);
    digitalWrite(L2, 1);
    delay(100);


  }
  if (p == 4) //blinking one after the other with 1000ms delay
  {
    digitalWrite(L1, 1);
    digitalWrite(L2, 0);
    delay(1000);
    digitalWrite(L1, 0);
    digitalWrite(L2, 1);
    delay(1000);

  }
  if (p == 5)  //blinking one after the other with 500ms delay
  {
    digitalWrite(L1, 1);
    digitalWrite(L2, 0);
    delay(500);
    digitalWrite(L1, 0);
    digitalWrite(L2, 1);
    delay(500);

  }

  if (p == 6) //for blinking l1 three times then three time L2 with 500ms delay
  {
    digitalWrite(L1, 1);
    delay(500);
    digitalWrite(L1, 0);
    delay(500);
    digitalWrite(L1, 1);
    delay(500);
    digitalWrite(L1, 0);
    delay(500);
    digitalWrite(L2, 1);
    delay(500);
    digitalWrite(L2, 0);
    delay(500);
    digitalWrite(L2, 1);
    delay(500);
    digitalWrite(L2, 0);
    delay(500);

  }

  if (p == 7) //for blinking l1 three times then three time L2 with 200ms delay
  {
    digitalWrite(L1, 1);
    delay(200);
    digitalWrite(L1, 0);
    delay(200);
    digitalWrite(L1, 1);
    delay(200);
    digitalWrite(L1, 0);
    delay(200);
    digitalWrite(L1, 1);
    delay(200);
    digitalWrite(L1, 0);
    delay(200);
    digitalWrite(L2, 1);
    delay(200);
    digitalWrite(L2, 0);
    delay(200);
    digitalWrite(L2, 1);
    delay(200);
    digitalWrite(L2, 0);
    delay(200);
    digitalWrite(L2, 1);
    delay(200);
    digitalWrite(L2, 0);
    delay(200);

  }
  if (p == 8)
  {
    p = 0;
  }
}
void buttonread()
{
  p++;


  if (p > 8)
  {
    p = 0;
  }
  EEPROM.update(0, p);
  delay(1000);
}