#include <iostream>
#include <chrono>

#include <bcm2835.h>
#include <unistd.h>

using namespace std;

// which GPIO17
#define PIN_01 RPI_GPIO_P1_11
// which GPIO4
#define PIN_02 RPI_GPIO_P1_07

int main(int, char**) {
    cout << "starting service..." << endl;

    // bcm2835_set_debug(1);

    if (!bcm2835_init()) {
        return 1;
    }

    bcm2835_gpio_fsel( PIN_02, BCM2835_GPIO_FSEL_OUTP);

    int t = 0;

    while (t++ < 1000) {
        usleep(50000L);
        bcm2835_gpio_write( PIN_02, HIGH);
        cout << "HIGH" << endl;

        usleep(50000L);
        bcm2835_gpio_write( PIN_02, LOW);
        cout << "LOW" << endl;
    }
    bcm2835_close();
    return 0;
}