#include reg51hsbit buzzer = P1^0; sbit addBtn = P2^0; sbit minusBtn = P2^1; sbit resetBtn = P2^2; unsigned int score = 50; void delayunsigned int time unsigned int i j; fori = 0; i

This is a program for a score counter using an 8051 microcontroller. The program uses three push buttons to increase, decrease, and reset the score. The score is displayed on a 7-segment display and a buzzer is used to provide audio feedback.

The microcontroller used in this program is the 8051, which is a popular microcontroller used in many embedded systems. The program starts by defining the necessary I/O pins for the buzzer and push buttons. The buzzer is connected to pin P1.0 and the push buttons are connected to pins P2.0, P2.1, and P2.2.

The score variable is defined as an unsigned integer with an initial value of 50. This variable will store the current score.

The program includes a delay function that introduces a delay in the program execution. This function is used to provide a delay when updating the display and playing the sound.

The updateDisplay function is used to update the score on the 7-segment display. It calculates the tens and units digit of the score and displays them sequentially on the display.

The playSound function is used to play a sound using the buzzer. It sets the buzzer pin to 1, introduces a delay, and then sets the buzzer pin to 0.

The main function contains an infinite loop that continuously checks the state of the push buttons and updates the score accordingly. If the add button is pressed, the score is incremented by 1, the sound is played, and the display is updated. If the minus button is pressed, the score is decremented by 1, the sound is played, and the display is updated. If the reset button is pressed, the score is reset to 50, the sound is played, and the display is updated.

This program demonstrates how to use push buttons, a 7-segment display, and a buzzer with an 8051 microcontroller to implement a score counter