// на реальном оборудовании работает

int key1 = 6;
int key1_st;
int on_off;

int key2 = 8;
int key2_st;
int key2_mode = 0;

int ledZ = 3;
int ledK = 5;
unsigned long ttek = 0; // текущее время
unsigned long tpred = 0; // предыдущее время
unsigned long delta;

void setup() {
  // put your setup code here, to run once:
  pinMode(key1, INPUT_PULLUP);
  pinMode(key2, INPUT_PULLUP);
  pinMode(ledZ, OUTPUT);
  pinMode(ledK, OUTPUT);
  //Serial.begin(9600);
}

void loop() {
  ttek = millis();
  delta = ttek-tpred;
  key1_st = digitalRead(key1);
  key2_st = digitalRead(key2);
  if (key1_st == 0)
     {
       if (on_off == 1)
       {on_off = 0;}
       else { on_off = 1;}
       }
  
  if ((key2_st == 0)  and (key2_mode == 0))
     {key2_mode = 1;}
  else if (key2_st == 0  and key2_mode == 1)
     {key2_mode = 2;}
  else if (key2_st == 0  and key2_mode == 2)
     {key2_mode = 3;}
  else if (key2_st == 0  and key2_mode == 3)
     {key2_mode = 0;}

  if ((on_off == 1) and (key2_mode == 0))
      {digitalWrite(ledK,0);
       digitalWrite(ledZ,0);}
  if ((on_off == 1) and (key2_mode == 1))
      { if (delta>0 && delta < 230 )
   { digitalWrite(ledK,1);}
  if (delta>=230 && delta < 800 )
   { digitalWrite(ledK,0);} }
if ((on_off == 1) and (key2_mode == 2))
      {if (delta>0 && delta < 400)
   { digitalWrite(ledZ,0);} 
  if ((delta>=400) && (delta < 1600)) 
   { digitalWrite(ledZ,1);}}
  if ((on_off == 1) and (key2_mode == 3))
      { if (delta>0 && delta < 230 )
   { digitalWrite(ledK,1);}
  if (delta>=230 && delta < 800 )
   { digitalWrite(ledK,0);} 
   if (delta>0 && delta < 400)
   { digitalWrite(ledZ,0);} 
  if ((delta>=400) && (delta < 1600)) 
   { digitalWrite(ledZ,1);}
   
   
   }
  
  
  
  
  
  
  
  
  
  /*if (on_off == 1)
    {
      if (delta>0 && delta < 230 )
   { digitalWrite(ledK,1);}
  if (delta>=230 && delta < 800 )
   { digitalWrite(ledK,0);} 

   if (delta>0 && delta < 400)
   { digitalWrite(ledZ,0);} 
  if ((delta>=400) && (delta < 1600)) 
   { digitalWrite(ledZ,1);}
    }
    else
     {digitalWrite(ledK,0);
     digitalWrite(ledZ,0);
     }*/




//  digitalWrite(ledZ,0);
  
  if (delta>1600 )
   { tpred = millis();}
/*
   Serial.print("key1_st ");
   Serial.print(key1_st);
   Serial.print("     on_off ");
   Serial.print(on_off);

   Serial.print("     key2_st ");
   Serial.print(key2_st);
   Serial.print("     key2_mode ");
   Serial.println(key2_mode);
*/

  
}