//read leds on pin 26, 0 and 1(correspondance seeed studio component)
const int ledPin0 = 26;
const int ledPin1 = 0;
const int ledPin2 = 1;
// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pins as an output.
  pinMode(ledPin0, OUTPUT);
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(ledPin0, HIGH);  // turn the LEDs on (HIGH is the voltage level)
  digitalWrite(ledPin1, HIGH);
  digitalWrite(ledPin2, HIGH);
  delay(1000);                      // wait for a second
  digitalWrite(ledPin0, LOW);  // turn the LEDs off (LOW is the voltage level)
  digitalWrite(ledPin1, LOW);
  digitalWrite(ledPin2, LOW);
  delay(1000);                      // wait for a second
}