// LED sequencer

int ledAPin = 7;
int ledBPin = 6;
int ledCPin = 5;

void setup()
{
  pinMode(ledAPin, OUTPUT);
  pinMode(ledBPin, OUTPUT);
  pinMode(ledCPin, OUTPUT);
}

void loop()
{
    digitalWrite(ledAPin, HIGH);
    digitalWrite(ledBPin, LOW);
    delay(1000);
    digitalWrite(ledAPin, LOW);
    digitalWrite(ledBPin, HIGH);
    delay(1000);
    
    digitalWrite(ledCPin, HIGH);
    delay(100);
    digitalWrite(ledCPin, LOW);
    delay(100);
    digitalWrite(ledCPin, HIGH);
    delay(100);
    digitalWrite(ledCPin, LOW);
    delay(100);
}