Question: A door sensor is connected to the P 1 . 1 pin, and a buzzer is connected to P 1 . 7 . Write an

A door sensor is connected to the P1.1 pin, and a buzzer is connected to P1.7. Write an 8051 C program to monitor the door sensor, and when it opens, sound the buzzer. You can sound the buzzer by sending a square wave of a few hundred Hz.

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