Arduino for Beginners - 2022 Complete Course - Activity 12 - Solution

This video tutorial explains how to use interrupts to print an increasing counter on a serial monitor whenever a button is pressed. It covers setting up the button pin, defining an interrupt function, implementing flag and debounce logic, and using a loop function to handle the button press and increment a counter. The tutorial concludes with testing the code and observing the counter increment on the serial monitor.

What is the primary purpose of using interrupts in this tutorial?

• To increase the speed of the program

• To handle button presses without blocking the main program loop

• To reduce memory usage

• To simplify the code structure

Which pin is used for the button in this setup?

• Pin #1

• Pin #4

• Pin #3

• Pin #2

What is the role of the flag in the interrupt setup?

• To change the button pin mode

• To store the button press count

• To indicate if the button has been pressed

• To reset the counter

Why is debouncing necessary in button press handling?

• To increase the button's lifespan

• To make the button press more sensitive

• To prevent multiple detections of a single press

• To reduce the code complexity

What is the debounce delay set to in this tutorial?

• 10 milliseconds

• 50 milliseconds

• 30 milliseconds

• 100 milliseconds

What happens to the counter each time the button is pressed?

• It is incremented by one

• It remains unchanged

• It is decremented by one

• It is reset to zero

What is the purpose of the serial monitor in this setup?

• To modify the interrupt function

• To adjust the debounce delay

• To change the button pin

• To display the counter value