8.4.3.2. Digital Encoding

Try these first

1. 1.

   What do 7-segment displays represent?

   Hint

   Think about common devices like clocks and calculators.

2. 2.

   How many bits does BCD use for each digit?

   Hint

   Recall how binary numbers work.

3. 3.

   What does digital encoding transform?

   • Decimal values into Hexadecimal
   • Binary values into control signals
   • BCD into decimal numbers

   Hint

   Think about what we need for controlling a display.

4. 4.

   True or False: A 7-segment display can only show numbers.

   • True
   • False

   Hint

   Remember those segments can form letters too!

5. 5.

   A microcontroller needs to display the binary number '0000 1001' on a 7-segment display using BCD. Discuss how to derive the segments that will light up, and explain if this is a valid BCD representation.

   Hint

   Refer to the mapping of segments for each decimal representation.

6. 6.

   Suppose you have a scenario where you need to control 4 different 7-segment displays to show a count from 0 to 15. What strategy would you implement to control these displays efficiently?

   Hint

   Consider the timing and pin usage to minimize hardware requirements.