#include <stdio.h>
#include "pico/stdlib.h"

void main() {
    const unsigned int led_pin = 9;		
    //Set up output LEd on pin 2
    gpio_init(led_pin);
    gpio_set_dir(led_pin, GPIO_OUT);
    // Loop forever
    while (1) {
        // Blink LED on GP2
        gpio_put(led_pin, 1);
        sleep_ms(1000);
        gpio_put(led_pin,0);
        sleep_ms(1000);
    }
}