Description
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An Automatic Room Cooling is an electronic system designed to maintain a comfortable room temperature automatically. It uses a DHT11 temperature sensor to monitor the room, a DC fan for cooling, an LCD to display real-time data, and a buzzer to provide alerts. The system activates the fan automatically when the room temperature exceeds a set threshold, making it an efficient solution for homes, laboratories, and small offices.
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This project involves controlling a DC motor’s direction using an 8051 microcontroller, with a buzzer and LED indicating the motor’s rotation state. When the DC motor rotates forward, the microcontroller keeps the buzzer and LED off. However, when the motor is rotated in reverse, the microcontroller triggers both the buzzer and LED to turn on as a visual and audible indication of the motor’s reverse rotation












