8 lamp display design and simulation based on 8-key control

Project Requirements:

Use eight buttons labeled K0 to K7 to control eight LEDs. Each button should toggle the corresponding LED on and off. For example, when K0 is pressed, D0 turns on; when K1 is pressed, D1 turns on, and so on.

Project Implementation:

Hardware Design:

In PROTEUS software, the circuit is connected as shown in the figure below. The microcontroller is connected to the buttons and LEDs through appropriate resistors to ensure safe operation.

Software Design:

The program is written and edited in Keil software. After writing the code, it is compiled to generate a .HEX file, which can be used for programming the microcontroller.

Steps to Complete the Project:

1. Load the generated .HEX file into the microcontroller in the PROTEUS simulation environment.
2. Run the simulation and observe the behavior of the LEDs as each button is pressed.

Additional Task:

Task Requirements:

If you want to make a single LED blink—on for 1 second, off for 1 second, repeating this 10 times, then turn on again—how would you approach this?

Task Implementation:

1. Draw the hardware diagram for the modified setup.
2. Create a flowchart and write the corresponding program to implement the blinking functionality.
3. Debug the code and run the simulation to verify that the LED behaves as expected.