Use this script to test the red/blue LED on the Cosmic Pi Analogue Board V2.2. Note it doesn't work when connected to the Main Board due to missing connections on main board V2 alpha

Cosmic_Pi_Analogue_LED_flash

//flash the red/blue LED on the cosmic Pi analogue board when
//it's connected directly to the Arduino DUE


void setup() {
  
  Serial.begin(115200);
  Serial.println("Cosmic Pi Status: Alive");
  //pinMode(13, OUTPUT);
  pinMode(A1, OUTPUT);
  pinMode(A3, OUTPUT);
}

void loop() {
  digitalWrite(A1, HIGH);
  digitalWrite(A3, HIGH);
  delay(100);
  digitalWrite(A1, LOW);
  digitalWrite(A3, HIGH);
  delay(100);
    digitalWrite(A1, HIGH);
  digitalWrite(A3, LOW);
  delay(100);
    digitalWrite(A1, LOW);
  digitalWrite(A3, LOW);
  delay(100);
}