Arduino program which accept the (R,G,Y) from serial input and ON the light based on given input

O Level IoT Practical Assignment

Arduino program which accept the (R,G,Y) from serial input and ON the light based on given input-

============

void setup()

{

  Serial.begin(9600);

  pinMode(13,OUTPUT);

  pinMode(12,OUTPUT);

  pinMode(11,OUTPUT);

}

void loop()

{

char char;

  if(Serial.available())

  {

  char=Serial.read();

  Serial.print(char);

    if(char=='r'||char=='R')

    {

      digitalWrite(13,HIGH);

      digitalWrite(12,LOW);

      digitalWrite(11,LOW);

    }

    else if(char=='g'||char=='G')

    {

      digitalWrite(13,LOW);

      digitalWrite(12,HIGH);

      digitalWrite(11,LOW);

    }

    else if(ch=='y' ||ch=='Y' )

    {

      digitalWrite(13,LOW);

      digitalWrite(12,LOW);

      digitalWrite(11,HIGH);

    }

  }

}

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Output:-