arduino-led.ino

/*
Script by @REPTILEHAUS
by Paddy O'Sullivan
*/

// Assign each of our input pins to an integer variable
int LED_one = 13;
int LED_two = 12;
int LED_three = 11;
int LED_four = 10;

void setup() {

    Serial.begin( 9600 );
    pinMode( LED_one, OUTPUT );
    pinMode( LED_two, OUTPUT );
    pinMode( LED_three, OUTPUT );
    pinMode( LED_four, OUTPUT );

} //END OF SETUP

void loop() {

    while (Serial.available() == 0); // wait until the serial connection is open

    int COM_value = Serial.read() - '0'; //read from the serial connection; the - '0' is to cast the values as the int and not the ASCII code

    Serial.println(COM_value); //print to the console for testing

    //LED #`1
    if( COM_value == 1 ) {
        digitalWrite( LED_one, HIGH ); // HIGH VOLTAGE - TURNED ON
    }
    if( COM_value == 2 ) {
        digitalWrite( LED_one, LOW ); // LOW VOLTAGE - TURNED OFF
    }

    //LED #2
    if( COM_value == 3 ) {
        digitalWrite( LED_two, HIGH );
    }
    if( COM_value == 4 ) {
        digitalWrite( LED_two, LOW );
    }

    //LED #3
    if( COM_value == 5 ) {
        digitalWrite( LED_three, HIGH );
    }
    if( COM_value == 6 ) {
        digitalWrite( LED_three, LOW );
    }

    //LED #4
    if( COM_value == 7 ) {
        digitalWrite( LED_four, HIGH );
    }
    if( COM_value == 8 ) {
        digitalWrite( LED_four, LOW );
    }

}