Abstract : Smoke is detected by the smoke sensor. The smoke sensor produces the analog voltage corresponding to the amount of smoke detected. This analog voltage is sent to PIC microcontroller. Three conditions are defined according to the amount of smoke detected. These conditions are shown by both different coloured light emitting diodes and liquid crystal display simultaneously. The required program is written in Pic BASIC Pro language in MicroCode Studio software. The program is compiled and downloaded into PIC18F4550 microcontroller via GTP USB Lite programmer.
Key words: PIC18F4550 microcontroller, Pic Basic Pro language.
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