#include "pico/stdlib.h"

void repeat (int pin, int delay);

int main() {

    // Specify the PIN number and sleep delay
    const uint LED_PIN   =  25;
    const uint LED_DELAY = 500;

    // Setup the LED pin as an output.
    gpio_init(LED_PIN);
    gpio_set_dir(LED_PIN, GPIO_OUT);
    // Call repeat function to have it blink repeatedly
    repeat (LED_PIN, LED_DELAY);
  
    return 0;

}

void repeat (int pin, int delay){
  
   while (true) {

        // Toggle the LED on and then sleep for delay period
        gpio_put(pin, 1);
        sleep_ms(delay);

        // Toggle the LED off and then sleep for delay period
        gpio_put(pin, 0);
        sleep_ms(delay);

    }
}