Using a 16x2 LCD Display and 4x4 Numeric Keypad, build a circuit integrating clock, timer, and stopwatch. The user must set the timer and clock using a numeric keypad. Use a piezo buzzer that buzzes when the timer counts down to 0. For the stopwatch, the timer starts from 0 seconds. Use push buttons or keypad (choice is left to you) to implement stop, start, reset, and pause.
