AVR Microcontroller Internal Peripherals Quiz

What does GPIO stand for in the context of AVR microcontrollers?

• General Purpose Interface/Output

• General Purpose Input/Output Control

• General Purpose Input/Operation

• General Purpose Input/Output

What is the primary function of an Analog-to-Digital Converter (ADC)?

• Amplify analog signals

• Filter digital signals

• Convert analog signals into digital values

• Convert digital signals into analog signals

Which of the following is NOT a type of serial communication interface found in AVR microcontrollers?

• USART

• SPI

• I2C

• PWM

What is the maximum resolution of the ADC on an Arduino board?

• 4096 levels

• 512 levels

• 1024 levels

• 2048 levels

Which type of communication allows simultaneous transfer of multiple bits of data?

• Asynchronous Communication

• Synchronous Communication

• Parallel Communication

• Serial Communication

What is the purpose of a Watchdog Timer in a microcontroller?

• To measure time intervals

• To reset the microcontroller if the software crashes

• To control periodic events

• To enable communication with external devices

In which mode does the digital interface operate when using the command pinMode(pin, INPUT_PULLUP);?

• Normal input mode

• Input mode with internal pullup resistor

• Output mode

• Input mode without pullup resistor

What does the function analogRead() do in Arduino?

• Initializes the serial port

• Sets the mode of a digital pin

• Reads the value from a specified analog pin

• Writes a digital value to a pin

Which of the following is a characteristic of asynchronous serial communication?

• Uses a shared clock signal

• Uses start and stop bits

• Requires multiple data lines

• Is faster than synchronous communication

What is the primary purpose of the digitalWrite() function in Arduino?

• To initialize the serial communication

• To set the voltage level on a digital interface

• To convert analog signals to digital

• To read the value from a digital pin