/*
 * LAB Name: Raspberry Pi Pico Hello World Serial Print & Read (C/C++ SDK)
 * Author: Khaled Magdy
 * For More Info Visit: www.DeepBlueMbedded.com
*/
#include <stdio.h>
#include "pico/stdlib.h"

#define LED_PIN 20
int LED_STATE = 0;

int main() 
{
    gpio_init(LED_PIN);
    gpio_set_dir(LED_PIN, GPIO_OUT);
    stdio_init_all();

    while (1) 
    {
        printf("Hello World From Pi Pico USB CDC! Enter 1 or 0 To Turn LED ON or OFF:\n");
        scanf("%d", &LED_STATE);
        gpio_put(LED_PIN, LED_STATE);
        sleep_ms(100);
    }
}
$abcdeabcde151015202530354045505560fghijfghij
BOOTSELLED1239USBRaspberryPiPico©2020RP2-8020/21P64M15.00TTT