Arduino Interrupts

What are the two types of interrupts in Arduino?

• hardware interrupts and software interrupts

• internal interrupts and timer interrupts

• external interrupts and pin change interrupts

• digital interrupts and analog interrupts

Explain what an Interrupt Service Routine (ISR) is in Arduino programming.

• An ISR is a variable used to store interrupt signals.

• An ISR is a function that is executed in response to a specific interrupt signal.

• An ISR is a type of sensor used in Arduino programming.

• An ISR is a command to stop the Arduino program.

What is the Interrupt Vector Table (IVT) and how is it used in Arduino?

• The Interrupt Vector Table (IVT) is used in Arduino to control the power supply

• The Interrupt Vector Table (IVT) is a software tool for debugging Arduino code

• The Interrupt Vector Table (IVT) is used in Arduino to map interrupt sources to their corresponding interrupt service routines.

• The Interrupt Vector Table (IVT) is a physical table that stores data for Arduino shields

How many external interrupts are available in Arduino Uno?

• 4

• 2

• 6

• 8

What is the function of Timer Interrupts in Arduino?

• Timer Interrupts are used to play music on Arduino

• Timer Interrupts are used to trigger specific functions or code blocks at regular intervals.

• Timer Interrupts are used to change the color of an LED on Arduino

• Timer Interrupts are used to control the speed of a motor on Arduino

How can you set the priority of interrupts in Arduino?

• Interrupt priority cannot be set in Arduino.

• Interrupts in Arduino are automatically prioritized based on the pin number.

• Use the 'setPriority()' function with the 'setPriority(interrupt, priority)' syntax.

• Use the 'attachInterrupt()' function with the 'attachInterrupt(digitalPin, ISR, mode)' syntax.

Which register is used to enable external interrupts in Arduino?

• EIMSK

• TIMSK

• EIFR

• PCICR

What is the role of the 'attachInterrupt()' function in Arduino?

• Sets the baud rate for serial communication in Arduino.

• Activates the sleep mode in Arduino.

• Assigns an interrupt to a specific pin in Arduino.

• Defines the pin mode as OUTPUT in Arduino.

Explain the concept of nested interrupts in Arduino programming.

• Nested interrupts in Arduino programming are used to prevent any interrupt from being executed until the previous one is completed

• Nested interrupts in Arduino programming allow for the execution of interrupts in a random order without any prioritization

• Nested interrupts in Arduino programming involve handling multiple interrupts where one interrupt can interrupt the processing of another interrupt, allowing for prioritization of interrupt handling.

• Nested interrupts in Arduino programming involve executing multiple instructions simultaneously within a single interrupt

How can you clear an interrupt flag in Arduino?

• Serial.begin(9600)

• analogRead(2)

• delay(100)

• digitalWrite(2, HIGH);