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Published on Aug 21, 2023


This project is developed for the users to sense the occurance of fire in different areas using smoke detecting method. The smoke indicator indicates the location of fire and produces alarm.

The heart of the circuit is microcontroller PIC16F73. The microcontroller has three ports that can be used for Input and output. The signal from the LDR is given as input to the microcontroller.

The output is derived at PortB of the microcontroller. According to the signal, the microcontroller sends signal through the output pins.

The output of the microcontroller is given to the LED location indicators and driver section. The driver section operates the siren.

Since microcontroller is used in this project, the operations are very accurate

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