Electronic Projects With Code

Project Overview: Smart Environmental Monitoring & Parking System

This smart environmental monitoring and automated parking system integrates multiple sensors and technologies to offer a highly efficient and user-friendly experience. The system performs essential tasks, including:

1. Environmental Monitoring:

   • DHT11 Sensor: Measures temperature and humidity in real-time, providing valuable environmental data.
   • 16x2 LCD Display: Shows the current temperature, humidity levels, and parking status for easy monitoring.

2. Gas Detection:

   • Gas Sensor: Detects hazardous gases in the vicinity, triggering an alert.
   • Servo Motor Activation: When dangerous gases are detected, the system activates a servo motor to rotate twice as a visual warning.

3. Automated Parking Gate:

   • IR Sensor: Detects the presence of a car in a parking spot.
   • Gate Servo Motor: The system automatically opens and closes the parking gate when a car is detected, ensuring a smooth parking experience.

4. Real-Time Feedback:

   • Displays real-time parking spot status, temperature, and humidity on the LCD screen, allowing users to monitor the system’s environment and parking conditions visually.

How the System Works

1. Key Components:

   • DHT11 Sensor: Collects temperature and humidity data for environmental monitoring.
   • Gas Sensor: Detects hazardous gases and activates the servo motor to alert users.
   • IR Sensor: Detects vehicles in parking spots and controls the gate.
   • 16x2 LCD Display: Provides live data updates, such as parking spot status, temperature, and humidity.
   • Servo Motors: Control the gate’s movement and trigger a response when gases are detected.

2. System Workflow:

   • Initialization:

     • The system initializes all sensors and the LCD display in the setup() function.
     • Gas detection interrupts are set up to handle real-time responses to hazardous gas levels.

   • Main Loop:

     • Continuously monitors:
     • Gas Levels: If dangerous gas concentrations are detected, the servo motor rotates twice as a warning signal.
     • Parking Spot Availability: The system detects car presence and opens/closes the gate accordingly.
     • Environmental Data: The system tracks temperature and humidity and displays this information on the LCD screen.

   • System Output:

     • The LCD displays the status of parking spots (P:X for occupied, P:Y for available), current temperature, and humidity.
     • A servo motor is activated in response to detected gases for safety.

Project Schematic:

Components Connections: