int i = 0;
int presscount = 0;
int rounds = 0;
int extled = 13;
const int button1 = 10;
const int button2 = 11;
int button2state = 0;
int voltage1 = 0;
int voltage2 = 0;

void setup(){
	Serial.begin(9600);
	pinMode(extled, OUTPUT);
	pinMode(button1, INPUT);
	pinMode(button2, INPUT);
	Serial.println("Hello World!");
	Serial.println("This is me calling you");
	pinMode(LED_BUILTIN,OUTPUT);

}

void loop(){
	digitalWrite(LED_BUILTIN, voltage1);
	digitalWrite(extled,voltage2 );

	delay(100);
	rounds++;
	if (digitalRead(button2)==LOW){
		Serial.println("stopped");
		Serial.println("you pressed button " + String(presscount) + " times");
		delay(1000);
		exit(0);
	}
	
	String Message = "I like C round ";
	if (rounds == 20){
		voltage1 = HIGH;
		voltage2 = LOW;
		i++;
		Serial.println(Message+i);
	}
	else if (rounds ==40){
		i++;
		voltage1 = LOW;
		voltage2 = HIGH;
		Serial.println(Message+i);
		rounds = 0;

	}
	if (digitalRead(button1) == LOW){
		presscount++;
	}

	
}