Arduino Projects: Door Control System & LPG-Flame Detection

Welcome to the repository for my Arduino projects! This repository contains two essential projects for home automation and safety: a Door Control System with Temperature Monitoring and an LPG & Flame Detection System.

Table of Contents

• About
• Features
• Technologies Used
• Projects
• Circuit Connections
• Setup Instructions
• How to Upload Code

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About

This repository contains Arduino-based projects designed to improve safety and automation in homes.

1. Door Control System: A smart system featuring a keypad, LCD display, motion detection, and remote control via WiFi.
2. LPG & Flame Detection System: Enhances safety by detecting gas leaks and fire hazards, triggering alarms and a water pump.

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Features

Door Control System

• Password-Protected Door Lock: Uses a servo motor to secure or unlock the door.
• Temperature Monitoring: Displays real-time temperature on an LCD screen.
• Motion Detection: Detects movement for additional security.
• WiFi Control: Operated remotely using the RemoteXY app.
• Door Control System Simulation Link

LPG & Flame Detection System

• LPG Leak Detection: Triggers an alarm for high gas concentration.
• Flame Detection: Activates a water pump and buzzer when a flame is detected.
• LPG & Flame Detection System Simulation Link

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Technologies Used

• Hardware Components:

  • Arduino UNO
  • Keypad (4x4)
  • LCD (I2C)
  • Servo Motors
  • Flame Sensor
  • LPG Gas Sensor
  • Temperature Sensor
  • Motion Sensor
  • Buzzer
  • Water Pump
  • WiFi Module (ESP8266)

• Software Tools:

  • Arduino IDE for coding and sketch uploading.
  • RemoteXY for mobile app control.
  • Libraries:
    • Servo
    • Keypad
    • LiquidCrystal_I2C
    • RemoteXY

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Projects

1. Door Control System

Combines security and automation into a single system for smart home applications.

• Servo-Based Door Lock: Opens or closes based on the correct password entered via the keypad.
• Temperature Monitoring: Displays live temperature data on the LCD.
• Remote Control: Operated wirelessly via the RemoteXY app.

2. LPG & Flame Detection System

Focuses on detecting hazards to ensure home safety.

• LPG Detection: Sounds an alarm if gas concentration exceeds a safe level.
• Flame Detection: Activates the water pump and buzzer when a fire is detected.

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Circuit Connections

Door Control System

Keypad Connections

Keypad Pin	Arduino Pin
Row 1	Pin 13
Row 2	Pin 12
Row 3	Pin 11
Row 4	Pin 10
Col 1	Pin 9
Col 2	Pin 8
Col 3	Pin 7
Col 4	Pin 6

Other Components

Component	Arduino Pin
Door Servo	Pin 3
Motion Servo	Pin 5
Temperature Sensor	A2
Motion Sensor	Pin 4
LCD (SDA, SCL)	A4, A5

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LPG & Flame Detection System

Components Connections

Component	Arduino Pin
LPG Sensor	A1
Flame Sensor	A5
Buzzer	Pin 7
Pump	Pin 2

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Setup Instructions

1. Clone the repository:

   git clone https://github.com/kawshik-ornob8/Iot-Smart_home-Prroject

2. Open the respective project folder in the Arduino IDE:
   • door_control_system/door_control.ino
   • lpg_flame_detection/lpg_flame.ino
3. Install the necessary libraries from the Arduino Library Manager:
   • Servo
   • Keypad
   • LiquidCrystal_I2C
   • RemoteXY
4. Connect the components according to the circuit diagrams provided.

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How to Upload Code

1. Connect your Arduino UNO to the computer using a USB cable.
2. Open the appropriate .ino file in the Arduino IDE.
3. Select the correct Board and Port under the Tools menu.
4. Click the Upload button in the Arduino IDE to upload the code to the board.
5. Test the system functionality.

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