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Dual-sensor safety alarm that detects both fire (flame sensor) and LPG/smoke gas leaks (MQ-2). Triggers a buzzer and LED indicator, with LCD displaying which sensor triggered.
Specifications
| Microcontroller | Arduino Uno |
| Sensors | IR Flame Sensor + MQ-2 Gas Sensor |
| Alert | Piezo Buzzer + Red LED |
| Display | 16×2 LCD (I2C) |
| Sensitivity | Adjustable via potentiometer on each sensor module |