#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C LCD(0x27,16,2);

int ROJO=13;
int VERDE=8;
int AZUL=7;
int PR=A0;
int PV=A1;
int PA=A2;
void setup() {
  LCD.init();
  LCD.backlight();
  LCD.setCursor(0,0);
  LCD.print ("Rojo Verde Azul");
  pinMode(ROJO, OUTPUT);
  pinMode(VERDE, OUTPUT);
  pinMode(AZUL, OUTPUT);

  pinMode(PR, INPUT);
  pinMode(PV, INPUT);
  pinMode(PA, INPUT);
  setColor(255,0,0);
  delay(1000);

}

void loop() 
{
  int VR=analogRead(PR);
  int VV=analogRead(PV);
  int VA=analogRead(PA);
  int ValorR=map(VR,0,1023,0,255);
  int ValorV=map(VV,0,1023,0,255);
  int ValorA=map(VA,0,1023,0,255);
  setColor(ValorR,ValorV,ValorA);
  String XR=String(ValorR);
  String XV=String(ValorV);
  String XA=String(ValorA);
  switch (XR.length())
  {
    case 1:
      XR="  " + XR;
      break;
    case 2:
      XR=" " + XR;
      break;
  }
  
  switch (XV.length())
  {
    case 1:
      XV="  " + XV;
      break;
    case 2:
      XV=" " + XV;
      break;
  }
  
switch (XA.length())
  {
    case 1:
      XA="  " + XA;
      break;
    case 2:
      XA=" " + XA;
      break;
  }

  LCD.setCursor(1,1);
  LCD.print(XR);

  LCD.setCursor(6,1);
  LCD.print(XV);

  LCD.setCursor(11,1);
  LCD.print(XA);




  /*
  for (int r=0;r<=255;r=r+5)
  {
      String rr=String(r);
      if (rr.length()==1)
        {
          rr="  " + rr;
        }
      if (rr.length()==2)
        {
          rr=" " + rr;
        }
        LCD.setCursor(1,1);
        LCD.print(rr);
    for (int v=0;v<=1023;v=v+5)
      {
        String vv=String(v);
        if (vv.length()==1)
        {
          vv="  " + vv;
        }
        if (vv.length()==2)
        {
          vv=" " + vv;
        }
          LCD.setCursor(6,1);
          LCD.print(vv);
        for (int a=0;a<=255;a=a+5)
        {
          String aa=String(a);
          if (aa.length()==1)
          {
            aa="  " + aa;
          }
          if (aa.length()==2)
          {
            aa=" " + aa;
          }
          LCD.setCursor(12,1);
          LCD.print(aa);
          setColor(r,v,a);
          delay(10);
        }
      }
  }
  */
}

void setColor(int r, int v, int a) 
{
  analogWrite(ROJO, r);
  analogWrite(VERDE, v);
  analogWrite(AZUL, a);
}