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Arduino Uno Mini Projects
Alcohol Detector using MQ3 Sensor and Arduino
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Alcohol Detector using MQ3 Sensor and Arduino
The Alcohol Detector is a safety-focused project that uses an MQ3 gas sensor, Arduino Uno, and a 16×2 LCD to detect the presence of alcohol in the air. It is commonly used in breathalyzer systems, vehicle safety checks, or security environments.
The MQ3 sensor is sensitive to alcohol vapors and sends an analog signal to the Arduino based on the concentration. The Arduino processes this signal and displays the alcohol level or a warning like “Alcohol Detected” on the LCD screen. A buzzer or LED can be added for audio-visual alerts when the reading crosses a set threshold.
₹2,950.00 ₹4,130.00 (Incl. GST)
1 in stock
Alcohol Detector using MQ3 Sensor and Arduino
The Alcohol Detector project is a safety-oriented system designed using an MQ3 gas sensor, Arduino Uno, and a 16×2 LCD display to detect the presence of alcohol in the air. This project is commonly used in breathalyzer prototypes, vehicle safety systems, and educational demonstrations focused on sensor applications and road safety.
The MQ3 sensor is highly sensitive to alcohol vapors and can detect even low concentrations. It outputs an analog signal that varies with the amount of alcohol in the environment. The Arduino Uno reads this signal and processes it to determine the presence and level of alcohol. If the detected value crosses a certain threshold, the Arduino displays a warning message such as “Alcohol Detected!” on the LCD, and optionally triggers a buzzer or red LED as an alert.
The LCD, preferably with an I2C module, is used to show the alcohol level in real-time. This makes the system easy to monitor and user-friendly.
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