/*
 * g++ led.cpp -o led -lwirinPi
 * ./led
 */
#include <iostream>
#include <wiringPi.h>
using namespace std;

int main() {
	int PNO = 4;

	if(wiringPiSetupGpio()<0) {
		cout << "wiring error\n";
		return 1;
	}
	pinMode(PNO, OUTPUT);

	for(int i=0; i<10; i++) {
		cout << "i=" << i << endl;
		digitalWrite(PNO, HIGH);
		delay(300);
		digitalWrite(PNO, LOW);
		delay(300);
	}

	return 0;
}