Arduino Nano SOS BLINKING LED (TUTORIAL)

Описание: Simple Tutorial, step by step Arduino NANO SOS BLINKING LED WIDTH CODE

The code:
// LED output
int led=13;

void setup() {
}

// the loop function run forever
void loop() {
// S
digitalWrite(led, HIGH); // turn the LED on
delay(0250); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0250); // wait for milliseconds

digitalWrite(led, HIGH); // turn the LED on
delay(0250); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0250); // wait for milliseconds

digitalWrite(led, HIGH); // turn the LED on
delay(0250); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0500); // wait for milliseconds
// O
digitalWrite(led, HIGH); // turn the LED on
delay(1000); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0250); // wait for milliseconds

digitalWrite(led, HIGH); // turn the LED on
delay(1000); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0250); // wait for milliseconds

digitalWrite(led, HIGH); // turn the LED on
delay(1000); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0250); // wait for milliseconds
// S
digitalWrite(led, HIGH); // turn the LED on
delay(0250); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0250); // wait for milliseconds

digitalWrite(led, HIGH); // turn the LED on
delay(0250); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(0250); // wait for milliseconds

digitalWrite(led, HIGH); // turn the LED on
delay(0250); // wait for milliseconds

digitalWrite(led, LOW); // turn the LED off
delay(1000); // wait for milliseconds
}