/* From Arduino Examples
  Reading a serial ASCII-encoded string.

  This sketch demonstrates the Serial parseInt() function.
  It looks for an ASCII string of comma-separated values.
  It parses them into ints, and uses those to fade an RGB LED.

  Circuit: Common-Cathode RGB LED wired like so:
  - red anode: digital pin 3 through 220 ohm resistor
  - green anode: digital pin 5 through 220 ohm resistor
  - blue anode: digital pin 6 through 220 ohm resistor
  - cathode: GND

  created 13 Apr 2012
  by Tom Igoe
  modified 14 Mar 2016
  by Arturo Guadalupi

  This example code is in the public domain.

  https://www.arduino.cc/en/Tutorial/BuiltInExamples/ReadASCIIString
*/

// pins for the LEDs:
const int LED1Pin = 2;
//const int LED2Pin = 3;
//const int LED3Pin = 4;

void setup() {
  // initialize serial:
  Serial.begin(9600);
  // make the pins outputs:
  pinMode(LED1Pin, OUTPUT);
 // pinMode(LED2Pin, OUTPUT);
  //pinMode(LED2Pin, OUTPUT);

  Serial.println("Enter number 1 or 0 to turn LED on off");
}

void loop() {
  // if there's any serial available, read it:
  if (Serial.available() > 0) {
    
      int LED1 = Serial.parseInt();
      //int LED2 = Serial.parseInt(); 

    // look for the newline. That's the end of your sentence:
    //if (Serial.read() == '\n') {
      // constrain the values to 0 - 255 and invert
      // if you're using a common-cathode LED, just use "constrain(color, 0, 255);"


      // print the three numbers in one string as hexadecimal:
      Serial.println(LED1);
      //Serial.print(", ");
      //Serial.println(LED2);
      //Serial.print(", ");

    //}
  }
}