Microcontroller Interfacing Quiz

What is necessary to realize an application with a microcontroller?

• Connecting to the internet

• Interfacing with I/O devices

• Using only digital pins

• Programming in C++

Which of the following is NOT a factor to consider when selecting a microcontroller?

• Memory size

• Color of the microcontroller

• Types of on-chip peripherals

• Number of Input/Output pins

What is the frequency of the external oscillator used in Atmega 328p microcontroller?

• 8 MHz

• 1 MHz

• 16 MHz

• 32 MHz

Which pin is used for transmitting data in UART communication?

• RX

• TX

• SDA

• SCL

What does PWM stand for in microcontroller applications?

• Pulse Wave Management

• Power Width Management

• Power Wave Modulation

• Pulse Width Modulation

Which of the following is an advantage of using SPI?

• Fastest protocol

• Uses only one data line

• Supports multi-master communication

• Requires fewer pins

Which command is used to read a digital GPIO port?

• pinMode(GPIO Port, Mode)

• digitalWrite(GPIO Port, Value)

• digitalRead(GPIO Port)

• analogRead(GPIO Port)

What is the purpose of the I2C bus?

• To transmit data at high speeds

• To connect only one device

• To connect multiple devices with unique addresses

• To use only analog signals

Which pin layout is used for I2C communication on Arduino Uno?

• A0 and A1

• Digital Pin 10 and 11

• A4 and A5

• Digital Pin 0 and 1

What does the function 'analogWrite()' do?

• Transmits data via UART

• Generates a PWM signal

• Configures digital pins

• Reads analog values