Motion Detection Light for your Hallway | Arduino Tutorial

How to make Motion Sensor based Light Control | Automatic room light Control How to make Motion Sensor based Light Control using Arduino and PIR Sensor

Components Details () { Solderless Breadboard, Arduino Nano, 10k Variable Resistor, PIR Sensor, 1k Resistor, Red LED, 1-Channel 5v Relay Module, Male to Male Jumper Wires, Male to Female jumper Wires, Bulb Holder, 220v LED Bulb, 5v 2Amp Power Adapter }

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Schematic Diagram of this project :

Code of this proejct is given below: const int MOTION_SENSOR_PIN = 6; // Arduino pin connected to the OUTPUT pin of motion sensor const int BUZZER_PIN = 13; // Arduino pin connected to Buzzer's pin int motionStateCurrent = LOW; // current state of motion sensor's pin int motionStatePrevious = LOW; // previous state of motion sensor's pin void setup() { Serial.begin(9600); // initialize serial pinMode(MOTION_SENSOR_PIN, INPUT); // set arduino pin to input mode pinMode(BUZZER_PIN, OUTPUT); // set arduino pin to output mode } void loop() { motionStatePrevious = motionStateCurrent; // store old state motionStateCurrent = digitalRead(MOTION_SENSOR_PIN); // read new state if (motionStatePrevious == LOW && motionStateCurrent == HIGH) { // pin state change: LOW -> HIGH Serial.println("Motion detected!"); digitalWrite(BUZZER_PIN, HIGH); // turn on delay(5000); } else if (motionStatePrevious == HIGH && motionStateCurrent == LOW) { // pin state change: HIGH -> LOW Serial.println("Motion stopped!"); digitalWrite(BUZZER_PIN, LOW); // turn off } }

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