const uint8_t myDPin[11] = {D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D10};

void setup() {
    Serial.begin(9600);
    for(int i=0; i<11; i++) {
        pinMode(myDPin[i], OUTPUT);
        digitalWrite(myDPin[i], 0);
    }
}

void loop() {
    for(int i=0; i<11; i++) {
        digitalWrite(myDPin[i], HIGH);
        delay(3000);
        digitalWrite(myDPin[i], LOW);
    }
}

// Note that D3 and D4 cannot use high resistance wires.