// Define the pins for the LEDs

const int ledPins[] = {26, 0, 1}; // GPIO pins 26, 0, and 1

  

// the setup function runs once when you press reset or power the board

void setup() {

// initialize digital pins as outputs

for (int i = 0; i < sizeof(ledPins) / sizeof(ledPins[0]); i++) {

pinMode(ledPins[i], OUTPUT);

}

}

  

// the loop function runs over and over again forever

void loop() {

// Turn on each LED one after another

for (int i = 0; i < sizeof(ledPins) / sizeof(ledPins[0]); i++) {

digitalWrite(ledPins[i], HIGH); // turn the LED on

delay(100); // wait for a second

digitalWrite(ledPins[i], LOW); // turn the LED off

delay(100); // wait for a second

}

}