Code:-
String voice;
#define GREEN 10
#define BLUE 11
#define RED 9
void setup()
{ // put your setup code here, to run once:
Serial.begin(9600);
pinMode(GREEN, OUTPUT);
pinMode(BLUE, OUTPUT);
pinMode(RED, OUTPUT);
analogWrite(RED,255);
analogWrite(GREEN,255); // Since LED must be off in the beginning
analogWrite(BLUE,255);
}
int redVal;
int greenVal;
int blueVal;
void loop() {
while (Serial.available()) //Check if there is an available byte to read
{
delay(10); //Delay added to make thing stable
char c = Serial.read(); //Conduct a serial read
if (c == '#') {break;} //Exit the loop when the # is detected after the word
voice += c; //Shorthand for voice = voice + c
}
if (voice.length() > 0) {
Serial.println(voice);
//----------Control Multiple Pins/ LEDs----------//
if(voice == "*red")// FOR RED COLOUR OF THE LED
{analogWrite(RED,255);
analogWrite(BLUE,0);
analogWrite(GREEN,255);
}
else if(voice == "*green")// FOR GREEN COLOUR OF THE LED !
{
analogWrite(GREEN,0);
analogWrite(RED,255);
analogWrite(BLUE,255);
}
else if(voice == "*blue")// FOR BLUE COLOUR OF THE LED !
{
analogWrite(RED,0);
analogWrite(GREEN,255);
analogWrite(BLUE,255);
}
else if(voice == "*white")// FOR WHITE COLOUR OF THE LED !
{
analogWrite(RED,0);
analogWrite(GREEN,0);
analogWrite(BLUE,0);
}
else if(voice == "*good night")// FOR TURNING OFF LED !
{
analogWrite(RED,255);
analogWrite(GREEN,255);
analogWrite(BLUE,255);
}
voice=""; //Reset the variable after initiating
}
}
