Design a timer system that has a push button

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Reference no: EM13269586

1- Design a timer system that has a push button, LCD and RTI. When you press the push button, the timer starts counting each second and displays the seconds' value on the LCD. When you press the timer, the system stops counting. You must use interrupts for RTI and push button.

2- Design a keypad using interrupts. Display the key on the LCD.

Reference no: EM13269586

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