The challenge

Now it’s your turn to put polling into practice. Your task is to implement a simple program that uses button polling to display directional arrows based on user input:

• If Button A is pressed, display a left arrow (←) on the LED matrix.
• If Button B is pressed, display a right arrow (→) on the LED matrix.
• If neither button is pressed, display a single lit LED at the center of the matrix.

You'll need to:

• Initialize the variables for the LED and the buttons.
• Continuously poll Button A and Button B.
• Update the LED display according to the button state with a clear indication of each state (left, right, or neutral).

I hope you don't mess up! It's so hard to share the road with people who don't use their turn signals properly.