Introduction to Arduino ( Part - I )

What is the function of the "pinMode()" in Arduino?

• To start the Arduino

• To set a pin as input or output

• To read the state of a pin

• To delay the program

What is the typical voltage of an Arduino Uno's digital pin when set to HIGH?

• 0V

• 3.3V

• 5V

• 12V

Which of the following is not a sensor ?

• Thermistor

• LDR

• Speaker

• Solar cell

Which function is used to write a HIGH or LOW value to a digital pin?

• digitalWrite()

• analogWrite()

• pinMode()

• setDigital()

More than one correct.

Which of these options is/ are correct ?

• Microprocessor is cheaper than Microcontroller

• Microprocessor is faster than Microcontroller

• Microcontroller is cheaper than Microprocessor

• Microcontroller is faster than Microprocessor

How do you define a constant integer in Arduino?

• const int varName = value;

• int const varName = value;

• constant int varName = value;

• #define varName value;

Fill in the blanks.

"A microcontroller is a small _______ on a single chip. "

• Logic gate

• Op-Amp

• Computer

• Memory

What is the purpose of the "delay()" function in Arduino?

• To set a pin mode to input or output

• To pause the program for a specified number of milliseconds

• To write an analog value to a pin

• To read the value from a digital pin

Which function is used to generate a PWM signal on a pin in Arduino?

• digitalWrite()

• analogRead()

• pwmWrite()

• analogWrite()

In which these purposes Arduino can't be used ?

• Lights, LED’s

• Transformers

• Motors

• Building robots