TV Rotary Switch Code

//Code created by Angela Perrone
//Arduino Example Sketches used for reference (simple, striptest, buttoncycler)
//Book - Resistor Ladder
//Tom Igoe Switch State Code
//Gustavo E de Campos Abbott


const int pin1 = A0;
int lastRotary = 0;
//int currentRotary = 13;
int cases;


void setup() {
  Serial.begin (9600);
  pinMode(pin1, INPUT_PULLUP);
}

void loop() {
  //Serial.print("Current Rotary  ");
  //Serial.println(currentRotary);
  //Serial.print("Last Rotary  ");
  //Serial.println(lastRotary);

  int rotary = analogRead(pin1);
  //         Serial.print("Rotary Value");
  //         Serial.println(rotary);



  // if (rotary != (lastRotary - 5) && rotary != (lastRotary - 4)&&rotary != lastRotary && rotary != (lastRotary - 3) && rotary != (lastRotary - 2) && rotary != (lastRotary - 1) && rotary != (lastRotary + 5)&&rotary != (lastRotary + 4)&&rotary != (lastRotary + 3) && rotary != (lastRotary + 2) && rotary != (lastRotary + 1)) {
  // if (rotary != constrain(lastRotary, lastRotary - 5, lastRotary + 5)) {

  // if (rotary != lastRotary) {
  //CHANNEL 1
  if (rotary >= 0 && rotary <= 49 && cases != 1) {
    Serial.println(1);

    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 1;
  }
  //CHANNEL 2
  if (rotary == 1023 && cases != 2) {
    Serial.println(2);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 2;
  }
  //CHANNEL 3
  if (rotary < 1000 && rotary >= 900 && cases != 3) {
    Serial.println(3);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 3;
  }

  //CHANNEL 4

  if (rotary >= 820 && rotary <= 880 && cases != 4) {
    Serial.println(4);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 4;
  }



  //CHANNEL 5

  if (rotary >= 720 && rotary <= 780 && cases != 5) {
    Serial.println(5);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 5;
  }

  //CHANNEL 6
  if (rotary >= 620 && rotary <= 690 && cases != 6) {
    Serial.println(6);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 6;
  }

  //CHANNEL 7

  if (rotary >= 520 && rotary <= 580 && cases != 7) {
    Serial.println(7);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 7;
  }

  //CHANNEL 8

  if (rotary >= 430 && rotary <= 490 && cases != 8) {
    Serial.println(8);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 8;
  }

  //CHANNEL 9
  if (rotary >= 330 && rotary <= 399 && cases != 9) {
    Serial.println(9);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 9;
  }

  //CHANNEL 10

  if (rotary >= 230 && rotary <= 299 && cases != 10) {
    Serial.println(10);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 10;
  }

  //CHANNEL 11
  if (rotary >= 150 && rotary <= 220 && cases != 11) {
    Serial.println(11);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 11;
  }

  //CHANNEL 12
  if (rotary >= 50 && rotary <= 120 && cases != 12) {
    Serial.println(12);
    Serial.print("Rotary Value");
    Serial.println(rotary);
    cases = 12;
  }


  //lastRotary = rotary;
  delay(100);
}