Raspberry Pi For Beginners - 2022 Complete Course - Activity 06 - Change the Powered-On LED When Pressing the Button

The video tutorial guides viewers through a project involving a circuit with multiple LEDs controlled by a push button. Initially, all LEDs are off. Pressing the button cycles through turning each LED on while others remain off. The tutorial emphasizes detecting button state changes to trigger LED toggling, requiring the use of a variable to store the previous button state. Viewers are encouraged to practice the concepts before proceeding to the solution.

What is the initial state of the LEDs when the program starts?

• Only the first LED is on

• All LEDs are on

• All LEDs are off

• Only the last LED is on

What happens when the push button is clicked once?

• No change in LED states

• The first LED turns on, others turn off

• All LEDs turn on

• The last LED turns on, others turn off

How does the LED sequence progress with each button press?

• Random LED turns on

• Each subsequent LED turns on, others turn off

• All LEDs blink together

• LEDs turn on in reverse order

What should happen if the button is held down continuously?

• LEDs should toggle continuously

• No change should occur

• All LEDs should turn off

• All LEDs should turn on

What variable is used to track the previous state of the button?

• LEDStateTracker

• previousButtonState

• buttonPressCounter

• currentButtonState