Interactive Kid's Toy

//Interactive Children's Toy - 2017 - Roberto Jacobo and Frank Burke-Olson


//Motor and buzzer pins
int buzzPot = A3;
int buzzPin = 5;
int potValue;

int motorPot = A4;
int motorPin = 6;
int motorValue;
int motortime = 0;

int work = 2; //decides which side is active; 1 = buzzer, 2 = motor, 3 = piezo & led

//Segment display
int a = 0;
int b = 1;
int c = 2;
int d = 3;
int e = 4;
int f = 7;
int g = 8;
int segnum = 0;
int buttplus = 12;
int buttmin = 13;

//Tap and linelight
int knockSensor = A5;               
byte val = 0;
int THRESHOLD = 25;
int tapnum = -1;
int redPin = 9;
int greenPin = 10;
int bluePin = 11;
//pins A0-2 correspond to leds 1-3

void setup() {
  
  //led display
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(buttplus, INPUT);
  pinMode(buttmin, INPUT);
  
  //tap and linelight
  pinMode(A0, OUTPUT);
  pinMode(A1, OUTPUT);
  pinMode(A2, OUTPUT);
  pinMode(knockSensor, INPUT); 
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);  

}

void loop() {
  //BUZZER  
  if(work==1){
      int newVal = analogRead(buzzPot);
      if(hasChangedBuzzer(buzzPot))
         tone(buzzPin,newVal,1000);
      else{
         noTone(buzzPin);
         work=2;
      }
  }

  //MOTOR
  if(work==2){
  if(hasChangedMotor(motorPot)){
    motortime = 0;
    potValue = analogRead(motorPot);
    motorValue = map(potValue, 50, 1023, 80, 230);
    analogWrite(motorPin,motorValue);      
  }else{
    motortime++;
  }
  if (motortime > 10){
    analogWrite(motorPin,0);
    motortime = 10;
    work = 3;
   }
  }

  //SEG LEDs
  printnum(segnum);

  if(digitalRead(buttplus)){
    segnum++;
    if(segnum == 10){
        segnum = 0;
    }
   delay(150);
  }else if(digitalRead(buttmin)){
    segnum--;
    if(segnum == -1){
        segnum = 9;
    }
    delay(100);
  }

  //PIEZO TAP
  val = analogRead(knockSensor);     
  if(work==3){
    work =1;
    if (val <= THRESHOLD) {
      tapnum++;
      if(tapnum == 7){
          tapnum = 0;
      }
      
      if(tapnum == 0){
        setColor(255, 0, 0);  // red
      }else if(tapnum == 1){
       setColor(0, 255, 0);  // green
      }else if(tapnum == 2){
        setColor(0, 0, 255);  // blue
      }else if(tapnum == 3){
        setColor(255, 255, 0);  // yellow
      }else if(tapnum == 4){
        setColor(80, 0, 80);  // purple
      }else {
        setColor(0, 255, 255);  // aqua
      }

    digitalWrite(A0,HIGH);
    digitalWrite(A1,HIGH);
    digitalWrite(A2,HIGH);
    digitalWrite(A3,HIGH);
  
    digitalWrite(A0,LOW);
      delay(80);
    digitalWrite(A1,LOW);
      delay(70);
    digitalWrite(A2,LOW);
      delay(50); 
    digitalWrite(A2,HIGH);
      delay(50);
    digitalWrite(A1,HIGH);
      delay(70);
    digitalWrite(A0,HIGH);
      delay(80);
      
    delay(100);
   }
  }
}

//Sets colors to RGB LEDs
void setColor(int red, int green, int blue)
{
  #ifdef COMMON_ANODE
    red = 255 - red;
    green = 255 - green;
    blue = 255 - blue;
  #endif
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(bluePin, blue);  
}


//Writes numbers on display 
void printnum(int num){

  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
  
  if(num ==0){
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(e, LOW);
    digitalWrite(f, LOW);

  }else if(num ==1){
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    
  }else if(num ==2){
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(g, LOW);
    digitalWrite(e, LOW);
    digitalWrite(d, LOW);

    
  }else if(num ==3){
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(g, LOW);
    
  }else if(num ==4){
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);

  }else if(num ==5){
    digitalWrite(a, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);
    
  }else if(num ==6){
    digitalWrite(a, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(e, LOW);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);
    
  }else if(num ==7){
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);

  }else if(num ==8){
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(e, LOW);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);

  }else { 
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);
  
  }
}

//Tests if buzzer potentiometer has changed
boolean hasChangedBuzzer(int pin) {
  int potValInit = analogRead(pin);
  delay(20);
  int potValNew = analogRead(pin);
  int difference = abs(potValNew - potValInit);
  if (difference > 17) {
    return true;
  }
  else {
    return false;
  }
}

//Tests if motor potentiometer has changed
boolean hasChangedMotor(int pin){
  int valInit = analogRead(pin); 
  delay(100);
  int valNew = analogRead(pin);
  int difference = abs(valInit-valNew);
  if(difference > 60){
    return true;
  }
  else{
    valInit = valNew;
    return false;
  }
}