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Thirai Project - Smart Light

Arduino, Smart Light,ESP, PIR, Automatic Control
Smart Light ESP32

💡 Smart Light using ESP32 + PIR

Project Details

Controller

ESP32

Sensor

PIR Motion Sensor

Output

Relay + Light

Level

Beginner

Overview

This project automatically turns ON a light when motion is detected using a PIR sensor and ESP32. It helps in energy saving and smart automation systems.

Components
  • ESP32 Development Board
  • PIR Sensor
  • Relay Module
  • Bulb / Load
  • Jumper Wires
Connections

PIR Sensor

Connected to GPIO 14

Relay Module

Connected to GPIO 26

ESP32 Code
ESP32 Arduino Code 

#define PIR 14
#define RELAY 26

void setup(){
    pinMode(PIR, INPUT);
    pinMode(RELAY, OUTPUT);
}

void loop(){
    int motion = digitalRead(PIR);
    digitalWrite(RELAY, motion);
}
Output

When motion is detected, the light turns ON automatically. When no motion is detected, the light turns OFF.

Flasher