The flame sensor detects the presence of fire or flame based on the Infrared (IR) wavelength emitted by the flame. It gives logic 1 as output if a flame is detected, otherwise, it gives logic 0 as ...

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This circuit diagram illustrates a fire and smoke detection system using an Arduino UNO R4 WiFi, MQ2 smoke sensor, and a flame sensor (fire sensor). The Arduino is the central controller that receives ...

Arduino based Fire Alarm – Circuit and Working. Fig. 2 presents the circuit diagram for the fire alarm using a flame sensor and Arduino Nano. The system is powered by a step-down transformer (X1), a ...

1. The pins of Arduino that are connected to the sensor and the buzzer are initialized at the start. The value of the threshold is also set here in a variable named sensorThres. int buzzer = 8; int ...

Download the latest version of Arduino IDE from Arduino. Connect your Arduino Nano board to your laptop and open the control panel. in the control panel, click on Hardware and Sound.Now click on ...

The block diagram of the motion sensor alarm is shown in Fig. 2. Fig. 1: Author’s prototype Fig. 2: Block diagram of motion sensor alarm Circuit and working. The circuit diagram of the motion sensor ...

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