#define analogPin 12
#define button 13
int LED[] = {14, 25, 32};
int PWM_LED[] = {0, 1, 2};
int PWM_FREQUENCY = 1000;
int PWM_RESOLUTION = 8;
int valueA0;
int buttonValue;
int oldValue = 0;
int button1;

void setup() {
  //pinMode(LED_RED, OUTPUT);
  //pinMode(LED_GREEN, OUTPUT);
  //pinMode(LED_BLUE, OUTPUT);
 Serial.begin(115200);
 
for(int i = 0; i < 3; i++){
 ledcSetup(PWM_LED[i], PWM_FREQUENCY, PWM_RESOLUTION);
 ledcAttachPin(LED[i], PWM_LED[i]);
}
 pinMode(button1, INPUT);
}

void loop() {
  if(analogRead(button) == 0){
    oldValue + buttonValue;
    buttonValue += 1;
    if (buttonValue == 3){
      buttonValue = 0;
    }
  }
switch(buttonValue){
  case 0: valueA0 = analogRead(analogPin);
          ledcWrite(PWM_LED[buttonValue], map(valueA0, 0, 4095, 255, 0));
          break;
  
  case 1: valueA0 = analogRead(analogPin);
          ledcWrite(PWM_LED[buttonValue], map(valueA0, 0, 4095, 255, 0));
          break;

  case 2: valueA0 = analogRead(analogPin);
          ledcWrite(PWM_LED[buttonValue], map(valueA0, 0, 4095, 255, 0));
          break;        
}

if(buttonValue == 0){
  Serial.println("LED : RED");
}
else if (buttonValue == 1){
  Serial.println("LED : GREEN");
}
else if (buttonValue == 2){
  Serial.println("LED : BLUE");
}

delay (150);

 // digitalWrite(LED_RED,1);
  //delay(1000);
 // digitalWrite(LED_RED,0);

  //digitalWrite(LED_GREEN,1);
  //delay(1000);
 // digitalWrite(LED_GREEN,0);

 // digitalWrite(LED_BLUE,1);
  //delay(1000);
 // digitalWrite(LED_BLUE,0);


  //digitalWrite(LED_BLUE,1);
 // digitalWrite(LED_GREEN,1);
 // delay(1000);
  //digitalWrite(LED_GREEN,0);
 // digitalWrite(LED_BLUE,0);

 // digitalWrite(LED_BLUE,1);
 // digitalWrite(LED_RED,1);
  //delay(1000);
 //  digitalWrite(LED_BLUE,0);
  //digitalWrite(LED_RED,0);

  //digitalWrite(LED_RED,1);
 // digitalWrite(LED_GREEN,1);
 // delay(1000);
 // digitalWrite(LED_RED,0);
 // digitalWrite(LED_GREEN,0);

 // digitalWrite(LED_RED,1);
 // digitalWrite(LED_GREEN,1);
 // digitalWrite(LED_BLUE,1);
 // delay(1000);
 // digitalWrite(LED_RED,0);
 // digitalWrite(LED_GREEN,0);
 // digitalWrite(LED_BLUE,0);
}