Arduino_Color

/**************************************************************************

------------------------- Autor: Mauricio Hidalgo ------------------------
----------------------- Title: Electronic Engineer -----------------------
-------------------- Web Page: www.electroingenio.com --------------------

***************************************************************************/

#include <FreqCount.h> // Library to count frecuency from TCS3200 sensor
#include <LiquidCrystal.h> // Library to LCD Control

/////////////////////////////////////////////////////////////////////

int S0 = 8;//pinB
int S1 = 9;//pinA
int S2 = 12;//pinE
int S3 = 11;//pinF
int Out = 47;//pinC
int LED = 13;//pinD
int unChar;
word absoluto;
word ROJO;
word VERDE;
word AZUL;
LiquidCrystal lcd(7, 6, 5, 4, 3, 2); //LCD Pins

void setup() {
Serial.begin(9600);
FreqCount.begin(10);
lcd.begin(20, 4);

//initialize pins
pinMode(LED,OUTPUT); //LED pinD
    
//color mode selection
pinMode(S2,OUTPUT); //S2 pinE
pinMode(S3,OUTPUT); //s3 pinF
    
pinMode(Out, INPUT); //Frecuency Out pinC # 47 on Arduino Mega 2560
    
//communication freq (sensitivity) selection
pinMode(S0,OUTPUT); //S0 pinB
pinMode(S1,OUTPUT); //S1 pinA 
}
 
void loop() {
  if (Serial.available() >= 0) {
  // escucha la llegada de nuevos datos serie:
  unChar = Serial.read();
  // imprime el caracter:
  
    
////////////////////////////////////////////////////////////// 
    if (unChar == 'R') {
         digitalWrite(LED, HIGH);
         digitalWrite(S0, HIGH); //S0
         digitalWrite(S1, HIGH); //S1 
         digitalWrite(S2, LOW); // RED Filter select
         digitalWrite(S3, LOW); // RED Filter select
         delay(250);
         lcd.clear();
         absoluto = (FreqCount.read()/10)*2;
         ROJO = absoluto;
         if(absoluto>255)
           {
           
           lcd.setCursor(0, 0);
           lcd.print("RED: ");
           lcd.print(255);
           Serial.print(255);
         }
         else
           {
           
           lcd.setCursor(0, 0);
           lcd.print("RED: ");
           lcd.print(ROJO);
           Serial.print(ROJO);
         }
         
    }
///////////////////////////////////////////////////////////
    else if (unChar == 'G') {    
         digitalWrite(LED, HIGH);
         digitalWrite(S0, HIGH); //S0
         digitalWrite(S1, HIGH); //S1 
         digitalWrite(S2, HIGH); // GREEN Filter select
         digitalWrite(S3, HIGH); // GREEN Filter select
         delay(250);
         absoluto = (FreqCount.read()/10)*2;
         VERDE = absoluto;
         if(absoluto>255)
           {
           
           lcd.setCursor(0, 1);
           lcd.print("GREEN: ");
           lcd.print(255);
           Serial.print(255);
         }
         else
           {
           
           lcd.setCursor(0, 1);
           lcd.print("GREEN: ");
           lcd.print(VERDE);
           Serial.print(VERDE);
         }
         
    }
/////////////////////////////////////////////////////////////
    else if (unChar == 'B') {     
         digitalWrite(LED, HIGH);
         digitalWrite(S0, HIGH); //S0
         digitalWrite(S1, HIGH); //S1 
         digitalWrite(S2, LOW); // BLUE Filter select
         digitalWrite(S3, HIGH);// BLUE Filter select 
         delay (250);
         absoluto = (FreqCount.read()/10)*2;
         AZUL = absoluto;
         if(absoluto>255)
           {
           
           lcd.setCursor(0,2);
           lcd.print("BLUE: ");
           lcd.print(255);
           Serial.print(255);
         }
         else
           {
           
           lcd.setCursor(0, 2);
           lcd.print("BLUE: ");
           lcd.print(AZUL);
           Serial.print(AZUL);
         }
         
    }
  }
}