Smart home project

list of products from Amazon (Not mine, i just link them!) Scroll Down For Article! Note: Elegoo boards are not Arduino, but they are compatible with Arduino IDE and are mutch more affordable!

CanaKit Raspberry Pi 5 Starter Kit PRO

2Pcs Raspberry Pi Pico Development Board

ELEGOO Upgraded 37 in 1 Sensor Modules Kit

40 PCS 20 CM Breadboard Jumper Wires

HiLetgo 5pcs USB to Serial CH340 Module

Project Description

This project is a smart environmental monitoring and parking system that integrates multiple sensors and components to perform the following tasks:

Environmental Monitoring:
- It uses a DHT11 sensor to measure temperature and humidity in real-time.
- The data is displayed on a 16x2 LCD screen.
Gas Detection:
- A gas sensor is used to detect hazardous gas levels.
- When gas is detected, an alert is triggered via a servo motor, which rotates twice as a warning or an actuator response.
Automated Parking Gate:
- An IR sensor detects the presence of a car in a parking spot.
- When a car is detected, a gate servo motor automatically opens and then closes after 5 seconds.
Real-Time Feedback:

The system displays parking status, temperature, and humidity on the LCD in real-time.
The user can visually monitor the system’s status and environmental conditions.

How It Works

System Components:
- DHT11 Sensor: Measures temperature and humidity.
- Gas Sensor: Detects hazardous gases and triggers a servo motor response.
- IR Sensor: Detects the presence of a car in a parking spot and controls the gate servo motor.
- LCD Screen: Displays parking status, temperature, and humidity.
- Servo Motors: Actuate the gate and respond to gas detection.
System Workflow:
- Initialization:
  - The LCD and sensors are initialized in the setup() function.
  - Interrupts are set up for the gas sensor to handle gas detection events.
- Main Loop:
  - The system continuously monitors:
    - Gas levels: If gas is detected, a servo rotates twice as a response.
    - Parking spot: If a car is detected, the gate servo opens and closes automatically.
    - Environmental data: Temperature and humidity are measured and displayed on the LCD.
- Output:
  - Displays parking status (P:X for occupied, P:Y for free), temperature, and humidity on the LCD.
  - Responds to gas detection with servo motor rotation.

Project Schematic:

Components Connections:

Monitoring LCD Connections:

Features

Automated Parking:
- Detects cars and controls the gate automatically.
Environmental Monitoring:
- Displays real-time temperature and humidity.
Gas Safety:
- Alerts the system with a servo response when gas is detected.
User-Friendly Output:
- Clear LCD output with all necessary information.

Applications

Smart Parking Lots:
- Automates parking gate operation.
Industrial Safety:
- Monitors hazardous gas levels and provides alerts.
Home Automation:

Tracks environmental conditions for climate control and safety.

FULL CODE :

OR just download from here:

https://drive.google.com/file/d/1kpXwjgAzOjrK-2AB4Gqzmpry5oXP-aBr/view?usp=sharing

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