#include "pico/stdlib.h"

int main() {
#ifndef PICO_DEFAULT_LED_PIN
#warning blink example requires a board with a regular LED
#else
    const uint LED_PIN = PICO_DEFAULT_LED_PIN; // Default PIN number for the built-in LED

    gpio_init(LED_PIN); // Initialize the LED

    gpio_set_dir(LED_PIN, GPIO_OUT);

    // Never-ending polling loop
    while (true) {
        // Turn on the LED, then wait 1/2 second
        gpio_put(LED_PIN, 1);
        sleep_ms(500);

        // Turn off the LED, then wait 1/2 second
        gpio_put(LED_PIN, 0);
        sleep_ms(500);
    }
#endif
}