//Original Code: Jordan Gowen https://fab.cba.mit.edu/classes/863.20/Architecture/people/JordanGowen/week12.html
//Update José Manuel Díaz - Fab Academy 2022
//Control of an RGB LED 
//JOSAMD 1.0 
//SAMD 11C14A

int Red = 5; //Let's add a variable to each pin to identify it more easily
int Gre = 8;//New name = Pin number according to Microprocessor data sheet
int Blu = 4;//


void setup() {
Serial.begin(9600);    //Start serial communication @9600 bps

pinMode(Blu, OUTPUT);   //Here the pins are declared as outputs
pinMode(Red, OUTPUT);   //Here the pins are declared as outputs
pinMode(Gre, OUTPUT);   //Here the pins are declared as outputs
    }

void loop(){
         
if(Serial.available()){  // If data is available to read
char val = Serial.read();//Read the characters that arrive from the serial port
    
    if(val == 'r'){       //If an "R" is received from processing, then...
     analogWrite(Red, 250);//Turn on the led with analog writing
      }
    if(val == 'b'){       //If an "B" is received from processing, then...
    analogWrite(Blu, 250);//Turn on the led with analog writing
      }
    if(val == 'g'){       //If an "G" is received from processing, then...
      analogWrite(Gre, 250);//Turn on the led with analog writing
      }
    if(val == 'f'){       //If an "R" is received from processing, then...
      analogWrite(Red, LOW); //Turn off all led
      analogWrite(Blu, LOW);
      analogWrite(Gre, LOW);

         }      
    }
  }