//milli

unsigned long pre1 =0;
unsigned long pre2 =0;
unsigned long pre3 =0;
unsigned long pre4 =0;

unsigned long timer1 =1000;
unsigned long timer2 =1000;
unsigned long timer3 =1000;
unsigned long timer4 =1000;

unsigned long current1 =0;
unsigned long current2 =0;
unsigned long current3 =0;
unsigned long current4 =0;

int led1 = 1;
int led2 = 1;
int led3 = 1;
int led4 = 1;


void setup() {
  Serial.begin(115200);      
  
   pinMode(13, OUTPUT);
    pinMode(12, OUTPUT);
     pinMode(11, OUTPUT);
      pinMode(10, OUTPUT);
      pinMode(2, INPUT_PULLUP);
}////////////////////////////////////

void loop() {

  current1 = millis(); //more

if (current1 - pre1 >= timer1) { ///////////// led1
      Serial.print( "timer on"); // more
      Serial.println(pre1);
      pre1 = current1;

    if (led1 == LOW) {
      led1 = HIGH;
    } else {
      led1 = LOW;
    }
    digitalWrite(13, led1);
    if (led1 == HIGH){       //////more
      timer1 = timer1 + 1000;
    } else {
      (timer1 + 1000);
    }
 }
  current2 = millis(); // more

  if (current2 - pre2 >= timer2) { ////////////// led2
      Serial.print( "timer off"); // more
      Serial.println(pre2);
      pre2 = current2;

    if (led2 == LOW) {
      led2 = HIGH;
    } else {
      led2 = LOW;
    }
    digitalWrite(12, led2);
    if (led2 == HIGH){       //////more
      timer2 = timer2 + 1000;
    } else {
      (timer2 + 1000);
    }
    
  }
    current3 = millis(); // more

  if (current3 - pre3 >= timer3) { /////////// led3
      Serial.println(pre3);
      pre3 = current3;

    if (led3 == LOW) {
      led3 = HIGH;
    } else {
      led3 = LOW;
    }
    digitalWrite(11, led3);
    if (led3 == HIGH){       //////more
      timer3 = timer3 + 1000;
    } else {
      (timer3 + 1000);
    }
   
  }

    current4 = millis(); // more

    if (current4 - pre4 >= timer4) {/////////////led4
      Serial.println(pre4);
      pre4 = current4;

    if (led4 == LOW) {
      led4 = HIGH;
    } else {
      led4 = LOW;
    }
    digitalWrite(10, led4);
    if (led4 == HIGH){       //////more
      timer4 = timer4 + 1000;
    } else {
      (timer4 + 1000);
    }
  
  
    } 
  
}///////////endloop