raspberry-pi-pico-docker-sdk/test_poject/main.c

#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/gpio.h"
#include "pico/binary_info.h"

const int LED_PIN = 0;

int main ()
{
    int test = 0;

    stdio_init_all();

    gpio_init(LED_PIN);
    gpio_set_dir(LED_PIN, GPIO_OUT);

    while(1)
    {
        gpio_put(LED_PIN, 0);
        sleep_ms(250);
        gpio_put(LED_PIN, 1);
        printf("Hello Word %d\n", test);
        sleep_ms(1000);
        test++;
    }
}