// Pin Definitions #define MQ2PIN A0 // MQ-2 analog output to Analog Pin A0 #define BUZZER 8 // Buzzer connected to Digital Pin 8 #define LED 9 // LED connected to Digital Pin 9 // Smoke detection ...
Home Automation System : In this project we have developed three different Arduino projects, i.e., Smoke Detection System, Motion controlled LEDs and Door Lock System.
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