#include <TimerOne.h>

const int pinLED = 9;
bool ledState = LOW;

volatile bool buttonState = false;

volatile unsigned long blinkCount = 0;

void setup()
{
  Serial.begin(9600);

  pinMode(pinLED, OUTPUT);
  pinMode(2, INPUT_PULLUP);
  attachInterrupt(0, ClickButton, FALLING);

  Timer1.initialize(200000);
  Timer1.attachInterrupt(FuncSOS);
  Timer1.stop();
}

void loop()
{

}

void ClickButton()
{
  if (buttonState == false)
  {
    buttonState = !buttonState;
    Timer1.start();
  }
}

void FuncSOS()
{
  if (blinkCount > 2 && blinkCount < 6)
  {
    Timer1.setPeriod(600000);
  }
  else
  {
    Timer1.setPeriod(200000);
  }

  if (ledState == LOW)
  {
    ledState = HIGH;
    blinkCount++; //количество миганий
  }
  else
  {
    ledState = LOW;

    if (blinkCount == 9)
    {
      buttonState = !buttonState;
      blinkCount = 0;
      Timer1.stop();
    }
  }
  digitalWrite(pinLED, ledState);
}