8.4. 7-Segment Display Peripherals

Try these first

1. 1.

   What is a 7-segment display used for?

   Hint

   Consider appliances that show numbers.

2. 2.

   Name one type of 7-segment display.

   Hint

   Think about the electrical connections.

3. 3.

   What is a 7-segment display primarily used for?

   • Displaying characters
   • Displaying numerical information
   • For decorative purposes

   Hint

   Consider the most common applications.

4. 4.

   True or False: Common cathode displays activate their segments by applying voltage to the cathodes.

   • True
   • False

   Hint

   Think about how the segments are turned on.

5. 5.

   Create a program code for driving a 7-segment display to count from 0 to 9 and then back to 0.

   Hint

   Think of how to represent each number in binary or BCD.

6. 6.

   Design a 7-segment display driver circuit using Arduino for input from a pushbutton to increment the displayed number.

   Hint

   Consider using interrupts for button debounce functionality.