Serial Communication: Arduino Course 4.9

This tutorial covers the basics of serial communication between an Arduino and a computer using a USB cable. It explains how data is transmitted in bits and bytes, introduces key functions in the Arduino Serial library, and demonstrates how to use the Serial Monitor for data visualization and debugging. The tutorial also highlights the importance of understanding baud rates and the role of the USART hardware in serial communication.

What is the primary method of communication between an Arduino and a computer?

• Wi-Fi

• Bluetooth

• Ethernet

• USB cable

What does the term 'serial' in 'Universal Serial Bus' refer to?

• Sending data wirelessly

• Sending data in packets

• Sending data one bit at a time

• Sending data in parallel

What is a USART in the context of Arduino?

• A type of sensor

• A type of USB cable

• A hardware component for serial communication

• A programming language

What is a serial port in relation to Arduino?

• A communication protocol

• A type of power supply

• A hardware interface for serial communication

• A type of sensor

What is the purpose of the Serial.begin function in Arduino?

• To set the baud rate for serial communication

• To start the Arduino IDE

• To initialize sensors

• To upload code to the Arduino

What is the typical baud rate used in Arduino serial communication?

• 4800

• 9600

• 14400

• 19200

How can you send data from an Arduino to a computer?

• Using Serial.print

• Using Serial.begin

• Using Serial.read

• Using Serial.write

What is the difference between Serial.print and Serial.println?

• Serial.println is used for debugging only

• Serial.println adds a newline after the data

• Serial.print sends data, Serial.println does not

• Serial.print is faster than Serial.println

Why is it important to avoid using pins 0 and 1 during serial communication?

• They are used for analog input

• They are used for serial communication

• They are used for USB connection

• They are used for power supply

What visual indicator on the Arduino board shows data transmission?

• Reset button

• Analog pin

• Transmit LED

• Power LED