Digital code Lock System
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A digital code lock system with a buzzer and servo motor is an embedded project that enhances security. When the correct code is entered, the microcontroller triggers a servo motor to unlock a door or container. If an incorrect code is entered, a buzzer sounds as an alert.
Description
A Digital Code Lock System using the 8051 microcontroller is an embedded security project designed to control access based on a secret passcode entered through a keypad. The system is ideal for securing doors, cabinets, or any restricted area, and it operates by comparing the entered code with a pre-programmed password. If the correct code is entered, the system unlocks the mechanism, and if the wrong code is entered, it triggers an alert using a buzzer. This project provides a hands-on approach to learning microcontroller-based programming and interfacing with different components.
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An Automatic Street Light using the IC 555 is a simple circuit that turns street lights ON at night and OFF during the day automatically. It uses a Light Dependent Resistor (LDR) to detect ambient light and a 555 Timer IC configured in comparator mode to control the switching.
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A Light Activated Motor Controller using IC 555 is a simple electronic circuit that turns a motor ON or OFF based on the presence or absence of light. It uses a LDR (Light Dependent Resistor) as a light sensor and the 555 timer IC in a comparator mode, along with an LED to indicate the motor’s status.
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An RGB LED is a light-emitting diode that combines Red, Green, and Blue LEDs in a single package. By adjusting the brightness of each color, it can produce millions of colors, making it ideal for decorative lighting, displays, and indicators.
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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
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To measure distance using an ultrasonic sensor and display the result on an LCD with an 8051 microcontroller, you’ll need to interface several components: an ultrasonic sensor (e.g., HC-SR04), an LCD (e.g., 16×2), and the 8051 microcontroller.
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A fire detection system with a buzzer is an embedded project designed to enhance safety. When smoke or heat is detected, the microcontroller triggers a buzzer to sound an alarm, alerting people to the presence of a fire
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A digital thermometer project using the 8051 microcontroller involves interfacing a temperature sensor, like the LM35, with the microcontroller to measure temperature. The 8051 processes the sensor data and displays the temperature on LCD.
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The Conveyor Belt Object Counter using LDR and 7-Segment Display with the 8051 microcontroller is designed to count objects passing in front of an LDR (Light Dependent Resistor) sensor. The system works by detecting light interruptions when an object crosses the sensor, causing a change in the LDR’s resistance. The microcontroller processes this change and increments an object count. The count is then displayed on a 7-segment display.
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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
