Arduino ELESA

What type of signal does the analogWrite() function output?

• Pulse Code Modulated Signal

• Frequency Modulated Signal

• Pulse Width Modulated Signal

• Pulse Amplitude Modulated Signal

Which of the following is used to control the brightness of an LED connected to an Arduino board?

• Analog input pin

• Digital input pin

• Analog output pin

• Digital output pin

Which of the following is the correct syntax for reading data from a sensor connected to an analog input pin?

• analogRead(sensor_pin);

• digitalRead(sensor_pin);

• analogWrite(sensor_pin, value);

• digitalWrite(sensor_pin, value);

Which of the following is the correct syntax for sending data over the serial port in an Arduino sketch?

• Serial.println(data);

• Serial.print(data);

• Serial.write(data);

• Serial.read(data);

Which of the following is the correct syntax for creating a delay of 1 second in an Arduino sketch?

• delay(60);

• delay(1);

• delay(1000);

• delay(60000);

What is the microcontroller used in Arduino UNO?

• ATmega328p

• ATmega2560

• ATmega32114

• AT91SAM3x8E

Arduino IDE consists of 2 functions. What are they?

• Loop() and build() and setup()

• Build() and loop()

• Setup() and build()

• Setup() and loop()

What is the use of the Arduino.h header file?

• It enables the programmer to access all of Arduino’s core functionality

• It doesn’t have any use and can be omitted any point of time in the code

• It gives root access to the microcontroller’s file system

• It allows other people to create libraries for the Arduino code

How many times does the setup() function run on every startup of the Arduino System?

• 5

• 4

• 1

• 2

What is the function of the setup() function in an Arduino sketch?

• It runs continuously while the sketch is running

• It sets up the initial configuration of the sketch

• It handles the input/output operations of the sketch

• It is used to define custom functions in the sketch