Digital Lecture 5 Assignment

Aidan Singh

***Includes Bonus***

int ledPins[4] = {28,29,30,31};
int potPin = 32;
int switchPin1 = 33;
int switchPin2 = 34;

int tempo=1000;
unsigned long lastStepTime = 0;
int currentStep = 0;
int totalSteps = 4;


void setup() {
    for(int i=0;i<4;i++){
      pinMode(ledPins[i], OUTPUT);
    }
    pinMode(switchPin1, INPUT);
    pinMode(switchPin2, INPUT);
}

void stepForwards(){
  if(millis() >= lastStepTime + tempo) {
    lastStepTime = millis();
    digitalWrite(ledPins[currentStep],LOW);
    currentStep++;
    if(currentStep == totalSteps){
      currentStep = 0;
    }
    digitalWrite(ledPins[currentStep],HIGH);
  }
}

void stepBackwards(){
  if(millis() >= lastStepTime + tempo) {
    lastStepTime = millis();
    digitalWrite(ledPins[currentStep],LOW);
    currentStep--;
    if(currentStep < 0){
      currentStep = 3;
    }
    digitalWrite(ledPins[currentStep],HIGH);
  }
}

void stepRand(){if(millis() >= lastStepTime + tempo) {
    lastStepTime = millis();
    digitalWrite(ledPins[currentStep],LOW);
    currentStep = random(0, 4);
    digitalWrite(ledPins[currentStep],HIGH);
  }

}

void loop(){
  tempo =analogRead(A13);
  if(digitalRead(switchPin2) == HIGH){
    if(digitalRead(switchPin1) == HIGH){
      stepForwards();
    }else{
      stepBackwards();
    }
  }else{
    stepRand();
  }

}