5 . Input Control LED

Which function is used to initialize serial communication in an Arduino sketch?

• Serial.begin()

• Serial.start();

• Serial.Begin();

• Serial.begin();

What baud rate is commonly used for serial communication with the Arduino Serial Monitor?

• 2400
• 115200
• 9600
• 4800

Which function is used to print data to the Serial Monitor?

• Serial.write()
• Serial.read()
• Serial.begin()
• Serial.print()

• Which function reads incoming serial data from the Serial Monitor?

• Serial.receive()
• Serial.read()

• Serial.fetch()
• Serial.transmit()

What type of data does the "Serial.read() "function return?

• character

• boolean
• float
• string

Which function is used to check if data is available to read from the Serial Monitor?

• Serial.read()
• Serial.check()
• Serial.ready()
• Serial.available()

How can you print a new line after printing data to the Serial Monitor?

• Serial.print(' ');
• Serial.write(' ');
• Serial.writeLine();
• Serial.println();

Which of the following is a correct way to initialize serial communication at 9600 baud in the setup function?

• Serial.begin(9600, SERIAL_8N1)
• Serial.begin(9600)
• Serial.begin(9600, SERIAL_7E1)
• Serial.begin(9600, SERIAL_5E2)

How can you send the string "Hello, World!" to the Serial Monitor?

• Serial.println("Hello, World!");
• Serial.write('Hello, World!');
• Serial.print('Hello, World!');
• Serial.begin('Hello, World!');

Choose the correct option

• if(Serial.available() > 0)

  {

  char state = Serial.read()

  if(state == '1'){

  digitalWrite(led,HIGH);}

  if(state == '0'){

  digitalWrite(led,LOW);}

  }

• if(Serial.available() > 0)

  {

  char state = Serial.read()

  if(state == 'a'){

  digitalWrite(led,HIGH);}

  if(state == 'b'){

  digitalWrite(led,LOW);}

  }

• if(Serial.available() > 0)

  {

  char state = Serial.read()

  if(state == 1){

  digitalWrite(led,HIGH);}

  if(state == 0){

  digitalWrite(led,LOW);}

  }

• if(Serial.available() > 0)

  {

  char state = Serial.read()

  if(state == a){

  digitalWrite(led,HIGH);}

  if(state == b){

  digitalWrite(led,LOW);}

  }